TY  - JOUR
A1  - Muschallik, Lukas
A1  - Kipp, Carina Ronja
A1  - Recker, Inga
A1  - Bongaerts, Johannes
A1  - Pohl, Martina
A1  - Gelissen, Melanie
A1  - Schöning, Michael Josef
A1  - Selmer, Thorsten
A1  - Siegert, Petra
T1  - Synthesis of α-hydroxy ketones and vicinal diols with the Bacillus licheniformis DSM 13T butane-2, 3-diol dehydrogenase
JF  - Journal of Biotechnology
N2  - The enantioselective synthesis of α-hydroxy ketones and vicinal diols is an intriguing field because of the broad applicability of these molecules. Although, butandiol dehydrogenases are known to play a key role in the production of 2,3-butandiol, their potential as biocatalysts is still not well studied. Here, we investigate the biocatalytic properties of the meso-butanediol dehydrogenase from Bacillus licheniformis DSM 13T (BlBDH). The encoding gene was cloned with an N-terminal StrepII-tag and recombinantly overexpressed in E. coli. BlBDH is highly active towards several non-physiological diketones and α-hydroxyketones with varying aliphatic chain lengths or even containing phenyl moieties. By adjusting the reaction parameters in biotransformations the formation of either the α-hydroxyketone intermediate or the diol can be controlled.
Y1  - 2020
SN  - 2590-1559
U6  - http://dx.doi.org/10.1016/j.jbiotec.2020.09.016
VL  - 202
IS  - Vol. 324
SP  - 61
EP  - 70
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Muschallik, Lukas
A1  - Molinnus, Denise
A1  - Jablonski, Melanie
A1  - Kipp, Carina Ronja
A1  - Bongaerts, Johannes
A1  - Pohl, Martina
A1  - Wagner, Torsten
A1  - Schöning, Michael Josef
A1  - Selmer, Thorsten
A1  - Siegert, Petra
T1  - Synthesis of α-hydroxy ketones and vicinal (R, R)-diols by Bacillus clausii DSM 8716ᵀ butanediol dehydrogenase
JF  - RSC Advances
N2  - α-hydroxy ketones (HK) and 1,2-diols are important building blocks for fine chemical synthesis. Here, we describe the R-selective 2,3-butanediol dehydrogenase from B. clausii DSM 8716ᵀ (BcBDH) that belongs to the metal-dependent medium chain dehydrogenases/reductases family (MDR) and catalyzes the selective asymmetric reduction of prochiral 1,2-diketones to the corresponding HK and, in some cases, the reduction of the same to the corresponding 1,2-diols. Aliphatic diketones, like 2,3-pentanedione, 2,3-hexanedione, 5-methyl-2,3-hexanedione, 3,4-hexanedione and 2,3-heptanedione are well transformed. In addition, surprisingly alkyl phenyl dicarbonyls, like 2-hydroxy-1-phenylpropan-1-one and phenylglyoxal are accepted, whereas their derivatives with two phenyl groups are not substrates. Supplementation of Mn²⁺ (1 mM) increases BcBDH's activity in biotransformations. Furthermore, the biocatalytic reduction of 5-methyl-2,3-hexanedione to mainly 5-methyl-3-hydroxy-2-hexanone with only small amounts of 5-methyl-2-hydroxy-3-hexanone within an enzyme membrane reactor is demonstrated.
Y1  - 2020
U6  - http://dx.doi.org/10.1039/D0RA02066D
SN  - 2046-2069
VL  - 10
SP  - 12206
EP  - 12216
PB  - Royal Society of Chemistry (RSC)
CY  - Cambridge
ER  - 
TY  - JOUR
A1  - Molinnus, Denise
A1  - Muschallik, Lukas
A1  - Gonzalez, Laura Osorio
A1  - Bongaerts, Johannes
A1  - Wagner, Torsten
A1  - Selmer, Thorsten
A1  - Siegert, Petra
A1  - Keusgen, Michael
A1  - Schöning, Michael Josef
T1  - Development and characterization of a field-effect biosensor for the detection of acetoin
JF  - Biosensors and Bioelectronics
N2  - A capacitive electrolyte-insulator-semiconductor (EIS) field-effect biosensor for acetoin detection has been presented for the first time. The EIS sensor consists of a layer structure of Al/p-Si/SiO₂/Ta₂O₅/enzyme acetoin reductase. The enzyme, also referred to as butane-2,3-diol dehydrogenase from B. clausii DSM 8716T, has been recently characterized. The enzyme catalyzes the (R)-specific reduction of racemic acetoin to (R,R)- and meso-butane-2,3-diol, respectively. Two different enzyme immobilization strategies (cross-linking by using glutaraldehyde and adsorption) have been studied. Typical biosensor parameters such as optimal pH working range, sensitivity, hysteresis, linear concentration range and long-term stability have been examined by means of constant-capacitance (ConCap) mode measurements. Furthermore, preliminary experiments have been successfully carried out for the detection of acetoin in diluted white wine samples.
Y1  - 2018
U6  - http://dx.doi.org/10.1016/j.bios.2018.05.023
VL  - 115
SP  - 1
EP  - 6
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Muschallik, Lukas
A1  - Molinnus, Denise
A1  - Bongaerts, Johannes
A1  - Pohl, Martina
A1  - Wagner, Torsten
A1  - Schöning, Michael Josef
A1  - Siegert, Petra
A1  - Selmer, Thorsten
T1  - (R,R)-Butane-2,3-diol Dehydrogenase from Bacillus clausii DSM 8716T: Cloning and Expression of the bdhA-Gene, and Initial Characterization of Enzyme
JF  - Journal of Biotechnology
N2  - The gene encoding a putative (R,R)-butane-2,3-diol dehydrogenase (bdhA) from Bacillus clausii DSM 8716T was isolated, sequenced and expressed in Escherichia coli. The amino acid sequence of the encoded protein is only distantly related to previously studied enzymes (identity 33–43%) and exhibited some uncharted peculiarities. An N-terminally StrepII-tagged enzyme variant was purified and initially characterized. The isolated enzyme catalyzed the (R)-specific oxidation of (R,R)- and meso-butane-2,3-diol to (R)- and (S)-acetoin with specific activities of 12 U/mg and 23 U/mg, respectively. Likewise, racemic acetoin was reduced with a specific activity of up to 115 U/mg yielding a mixture of (R,R)- and meso-butane-2,3-diol, while the enzyme reduced butane-2,3-dione (Vmax 74 U/mg) solely to (R,R)-butane-2,3-diol via (R)-acetoin. For these reactions only activity with the co-substrates NADH/NAD+ was observed. The enzyme accepted a selection of vicinal diketones, α-hydroxy ketones and vicinal diols as alternative substrates. Although the physiological function of the enzyme in B. clausii remains elusive, the data presented herein clearly demonstrates that the encoded enzyme is a genuine (R,R)-butane-2,3-diol dehydrogenase with potential for applications in biocatalysis and sensor development.
Y1  - 2017
U6  - http://dx.doi.org/10.1016/j.jbiotec.2017.07.020
SN  - 0168-1656
VL  - 258
SP  - 41
EP  - 50
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Molinnus, Denise
A1  - Sorich, Maren
A1  - Bartz, Alexander
A1  - Siegert, Petra
A1  - Willenberg, Holger S.
A1  - Lisdat, Fred
A1  - Poghossian, Arshak
A1  - Keusgen, Michael
A1  - Schöning, Michael Josef
T1  - Towards an adrenaline biosensor based on substrate recycling amplification in combination with an enzyme logic gate
JF  - Sensors and Actuators B: Chemical
N2  - An amperometric biosensor using a substrate recycling principle was realized for the detection of low adrenaline concentrations (1 nM) by measurements in phosphate buffer and Ringer’s solution at pH 6.5 and pH 7.4, respectively. In proof-of-concept experiments, a Boolean logic-gate principle has been applied to develop a digital adrenaline biosensor based on an enzyme AND logic gate. The obtained results demonstrate that the developed digital biosensor is capable for a rapid qualitative determination of the presence/absence of adrenaline in a YES/NO statement. Such digital biosensor could be used in clinical diagnostics for the control of a correct insertion of a catheter in the adrenal veins during adrenal venous-sampling procedure.
Y1  - 2016
U6  - http://dx.doi.org/10.1016/j.snb.2016.06.064
SN  - 0925-4005
VL  - 237
SP  - 190
EP  - 195
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Molinnus, Denise
A1  - Bäcker, Matthias
A1  - Siegert, Petra
A1  - Willenberg, H.
A1  - Poghossian, Arshak
A1  - Keusgen, M.
A1  - Schöning, Michael Josef
T1  - Detection of Adrenaline Based on Substrate Recycling Amplification
JF  - Procedia Engineering
N2  - An amperometric enzyme biosensor has been applied for the detection of adrenaline. The adrenaline biosensor has been prepared by modification of an oxygen electrode with the enzyme laccase that operates at a broad pH range between pH 3.5 to pH 8. The enzyme molecules were immobilized via cross-linking with glutaraldehyde. The sensitivity of the developed adrenaline biosensor in different pH buffer solutions has been studied.
Y1  - 2015
U6  - http://dx.doi.org/10.1016/j.proeng.2015.08.708
SN  - 1877-7058
N1  - Eurosensors 2015
VL  - 120
SP  - 540
EP  - 543
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Martinez, Ronny
A1  - Jakob, Felix
A1  - Tu, Ran
A1  - Siegert, Petra
A1  - Maurer, Karl-Heinz
A1  - Schwaneberg, Ulrich
T1  - Increasing activity and thermal resistance of Bacillus gibsonii alkaline protease (BgAP) by directed evolution
JF  - Biotechnology and bioengineering
Y1  - 2013
SN  - 1097-0290 (E-Journal); 0006-3592 (Print); 0368-1467 (Print)
VL  - Vol. 110
IS  - Iss. 3
SP  - 711
EP  - 720
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Jakob, Felix
A1  - Martinez, Ronny
A1  - Mandawe, John
A1  - Hellmuth, Hendrik
A1  - Siegert, Petra
A1  - Maurer, Karl-Heinz
A1  - Schwaneberg, Ulrich
T1  - Surface charge engineering of a Bacillus gibsonii subtilisin protease
JF  - Applied microbiology and biotechnology
Y1  - 2013
SN  - 1432-0614 (E-Journal); 0171-1741 (Print); 0175-7598 (Print); 0340-2118 (Print)
VL  - Vol. 97
IS  - Iss. 15
SP  - 6793
EP  - 6802
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Ribitsch, D.
A1  - Heumann, S.
A1  - Karl, W.
A1  - Gerlach, J.
A1  - Leber, R.
A1  - Birner-Gruenberger, R.
A1  - Gruber, K.
A1  - Eiteljoerg, I.
A1  - Remler, P.
A1  - Siegert, Petra
A1  - Lange, J.
A1  - Maurer, Karl-Heinz
A1  - Berg, G.
A1  - Guebitz, G. M.
A1  - Schwab, H.
T1  - Extracellular serine proteases from Stenotrophomonas maltophilia: Screening, isolation and heterologous expression in E. coli
JF  - Journal of biotechnology
N2  - A large strain collection comprising antagonistic bacteria was screened for novel detergent proteases. Several strains displayed protease activity on agar plates containing skim milk but were inactive in liquid media. Encapsulation of cells in alginate beads induced protease production. Stenotrophomonas maltophilia emerged as best performer under washing conditions. For identification of wash-active proteases, four extracellular serine proteases called StmPr1, StmPr2, StmPr3 and StmPr4 were cloned. StmPr2 and StmPr4 were sufficiently overexpressed in E. coli. Expression of StmPr1 and StmPr3 resulted in unprocessed, insoluble protein. Truncation of most of the C-terminal domain which has been identified by enzyme modeling succeeded in expression of soluble, active StmPr1 but failed in case of StmPr3.

From laundry application tests StmPr2 turned out to be a highly wash-active protease at 45 °C. Specific activity of StmPr2 determined with suc-l-Ala-l-Ala-l-Pro-l-Phe-p-nitroanilide as the substrate was 17 ± 2 U/mg. In addition we determined the kinetic parameters and cleavage preferences of protease StmPr2.
KW  - Alginate beads
KW  - Stenotrophomonas maltophilia
KW  - Detergent protease
Y1  - 2012
U6  - http://dx.doi.org/10.1016/j.jbiotec.2011.09.025
SN  - 1873-4863 (E-Journal); 0168-1656 (Print)
VL  - 157
IS  - 1
SP  - 140
EP  - 147
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - PAT
A1  - Maurer, Karl-Heinz
A1  - O'Connell, Timothy
A1  - Siegert, Petra
A1  - Weber, Thomas
A1  - Tondera, Susanne
A1  - Hellmuth, Hendrik
T1  - Flüssige Tensidzubereitung enthaltend Lipase und Phosphonat [Offenlegungsschrift]
T1  - Liquid surfactant preparation containing lipase and phosphonate [Europäische Patentanmeldung / Internationale Patentanmeldung]
Y1  - 2012
SP  - 1
EP  - 22
PB  - Deutsches Patent- und Markenamt / Europäisches Patentamt / WIPO
CY  - München / Den Hague / Genf
ER  - 
TY  - PAT
A1  - Siegert, Petra
A1  - Merkel, Marion
A1  - Hellmuth, Hendrik
A1  - O'Connell, Timothy
A1  - Maurer, Karl-Heinz
T1  - Stabilisierte flüssige enzymhaltige Tensidzubereitung (Einsatz einer das hydrolytische Enzym stabilisierenden Komponente, die eine Phenylalkyldicarbonsäure umfasst) [Offenlegungsschrift]
T1  - Stabilized liquid tenside preparation comprising enzymes (using a component that stabilizes the hydrolytic enzyme and includes a phenylalkyldicarboxylic acid) [Europäische Patentanmeldung / Internationale Patentanmeldung]
Y1  - 2012
SP  - 1
EP  - 15
PB  - Deutsches Patent- und Markenamt / Europäisches Patentamt / WIPO
CY  - München / Den Hague / Genf
ER  - 
TY  - PAT
A1  - Siegert, Petra
A1  - Merkel, Marion
A1  - Hellmuth, Hendrik
A1  - O'Connell, Timothy
A1  - Maurer, Karl-Heinz
T1  - Stabilisierte flüssige enzymhaltige Tensidzubereitung (durch den Einsatz einer das hydrolytische Enzym stabilisierende Komponente, die eine mehrfach substituierte Benzolcarbonsäure umfasst, die an mindestens zwei Kohlenstoffatomen des Benzolrestes eine Carboxylgruppe aufweist) [Offenlegungsschrift]
T1  - Stabilized liquid tenside preparation comprising enzymes (a component comprising a multiply substituted benzyl carboxylic acid comprising a carboxyl group on at least two carbon atoms of the benzyl radical is used for stabilizing the hydrolytic enzyme) [Europäische Patentanmeldung / Internationale Patentanmeldung]
Y1  - 2012
SP  - 1
EP  - 16
PB  - Deutsches Patent- und Markenamt / Europäisches Patentamt / WIPO
CY  - München / Den Hague / Genf
ER  - 
TY  - PAT
A1  - Siegert, Petra
A1  - Merkel, Marion
A1  - Hellmuth, Hendrik
A1  - O'Connell, Timothy
A1  - Maurer, Karl-Heinz
T1  - Stabilisierte flüssige enzymhaltige Tensidzubereitung (Einsatz einer das hydrolytische Enzym stabilisierende Komponente, die eine Phthaloylglutaminsäure und/oder eine Phthaloylasparaginsäure umfasst) [Offenlegungsschrift]
T1  - Stabilized liquid tenside preparation comprising enzymes (a component comprising a phthaloyl glutamine acid and/or a phthaloyl asparagine acid is used for stablizing the hydrolytic enzyme) [Europäische Patentanmeldung / Internationale Patentanmeldung]
Y1  - 2012
SP  - 1
EP  - 16
PB  - Deutsches Patent- und Markenamt / Europäisches Patentamt / WIPO
CY  - München / Den Hague / Genf
ER  - 
TY  - PAT
A1  - Siegert, Petra
A1  - Merkel, Marion
A1  - Hellmuth, Hendrik
A1  - O'Connell, Timothy
A1  - Maurer, Karl-Heinz
T1  - Stabilisierte flüssige enzymhaltige Tensidzubereitung (Einsatz einer das hydrolytische Enzym stabilisierende Komponente, die eine Aminophthalsäure umfasst) [Offenlegungsschrift]
T1  - Stabilized liquid tenside preparation comprising enzymes (a component comprising an aminophthalic acid is used for stabilizing the hydrolytic enzyme) [Europäische Patentanmeldung / Internationale Patentanmeldung]
Y1  - 2012
SP  - 1
EP  - 16
PB  - Deutsches Patent- und Markenamt / Europäisches Patentamt / WIPO
CY  - München / Den Hague / Genf
ER  - 
TY  - PAT
A1  - Siegert, Petra
A1  - Merkel, Marion
A1  - Hellmuth, Hendrik
A1  - O'Connell, Timothy
A1  - Maurer, Karl-Heinz
T1  - Stabilisierte flüssige enzymhaltige Tensidzubereitung (Einsatz einer das hydrolytische Enzym stabilisierende Komponente, die eine Oligoamino-biphenyl-oligocarbonsäure umfasst) [Offenlegungsschrift]
T1  - Stabilized liquid tenside preparation comprising enzymes (a component comprising an oligoamino-biphenyl-oligocarboxylic acid is used for stabilizing the hydrolytic enzyme) [Europäische Patentanmeldung / Internationale Patentanmeldung]
Y1  - 2012
SP  - 1
EP  - 16
PB  - Deutsches Patent- und Markenamt / Europäisches Patentamt / WIPO
CY  - München / Den Hague / Genf
ER  - 
TY  - PAT
A1  - Siegert, Petra
A1  - Merkel, Marion
A1  - Hellmuth, Hendrik
A1  - O'Connell, Timothy
A1  - Maurer, Karl-Heinz
T1  - Stabilisierte flüssige enzymhaltige Tensidzubereitung (Einsatz einer das hydrolytische Enzym stabilisierende Komponente, die ein Monosaccharidglycerat umfasst) [Offenlegungsschrift]
T1  - Stabilized liquid enzyme-containing surfactant preparation (using a component which comprises a monosaccharide glycerate and which stabilizes the hydrolytic enzyme) [Europäische Patentanmeldung / Internationale Patentanmeldung]
Y1  - 2012
SP  - 1
EP  - 17
PB  - Deutsches Patent- und Markenamt / Europäisches Patentamt / WIPO
CY  - München / Den Hague / Genf
ER  - 
TY  - PAT
A1  - Siegert, Petra
A1  - Schwaneberg, Ulrich
A1  - Martinez Moya, Ronny
A1  - Merkel, Marion
A1  - Spitz, Astrid
A1  - Wieland, Susanne
A1  - Hellmuth, Hendrik
A1  - Maurer, Karl-Heinz
T1  - Leistungsverbesserte Proteasevariante [Offenlegungsschrift]
T1  - Performance-enhanced protease variant [Europäische Patentanmeldung / Internationale Patentanmeldung]
Y1  - 2012
SP  - 1
EP  - 29
PB  - Deutsches Patent- und Markenamt / Europäisches Patentamt / WIPO
CY  - München / Den Hague / Genf
ER  - 
TY  - JOUR
A1  - Niehaus, F.
A1  - Gabor, E.
A1  - Wieland, S.
A1  - Siegert, Petra
A1  - Maurer, Karl-Heinz
A1  - Eck, J.
T1  - Enzymes for the laundry industries: tapping the vast metagenomic pool of alkaline proteases
JF  - Microbial biotechnology
Y1  - 2011
SN  - 1432-0614 (E-Journal); 0171-1741 (Print); 0175-7598 (Print); 0340-2118 (Print)
VL  - Vol. 4
IS  - Iss. 6
SP  - 767
EP  - 776
PB  - Springer
CY  - Berlin
ER  - 
TY  - PAT
A1  - Siegert, Petra
A1  - Evers, Stefan
A1  - Marion, Merkel
A1  - Mussmann, Nina
A1  - Hellmuth, Hendrik
A1  - O'Connell, Timothy
A1  - Maurer, Karl-Heinz
A1  - Schwaneberg, Ulrich
A1  - Martinez, Ronny
A1  - Jakob, Felix
T1  - Verfahren zur Anpassung eines hydrolytischen Enzyms an eine das hydrolytische Enzym stabilisierende Komponente [Offenlegungsschrift]
T1  - Method for adapting a hydrolytic enzyme to a component that stabilizes the hydrolytic enzyme [Europäische Patentanmeldung / Internationale Patentanmeldung]
Y1  - 2013
SP  - 1
EP  - 27
PB  - Deutsches Patent- und Markenamt / Europäisches Patentamt / WIPO
CY  - München / Den Hague / Genf
ER  - 
TY  - PAT
A1  - Siegert, Petra
A1  - Merkel, Marion
A1  - Kluin, Cornelia
A1  - Maurer, Karl-Heinz
A1  - O'Connell, Timothy
A1  - Wieland, Susanne
A1  - Hellmuth, Hendrik
T1  - Neue Proteasen und diese enthaltende Mittel [Offenlegungsschrift]
T1  - Novel proteases and compositions comprising them [Europäische Patentanmeldung / Internationale Patentanmeldung]
Y1  - 2011
SP  - 1
EP  - 21
PB  - Deutsches Patent- und Markenamt / Europäisches Patentamt / WIPO
CY  - München / Den Hague / Genf
ER  - 
TY  - PAT
A1  - Wieland, Susanne
A1  - Siegert, Petra
A1  - Spitz, Astrid
A1  - Maurer, Karl-Heinz
A1  - O'Connell, Timothy
A1  - Prüser, Inken
A1  - Schiedel, Marc-Steffen
A1  - Eiting, Thomas
A1  - Sendor-Müller, Dorota
A1  - Bastigkeit, Thorsten
A1  - Benda, Konstantin
A1  - Müller, Sven
T1  - Lagerstabiles flüssiges Wasch- oder Reinigungsmittel enthaltend Proteasen [Offenlegungsschrift]
T1  - Storage-stable liquid washing or cleaning agent containing proteases [Europäische Patentanmeldung / Internationale Patentanmeldung]
Y1  - 2011
SP  - 1
EP  - 25
PB  - Deutsches Patent- und Markenamt / Europäisches Patentamt / WIPO
CY  - München / Den Hague / Genf
ER  - 
TY  - JOUR
A1  - Ribitsch, D.
A1  - Karl, W.
A1  - Birner-Gruenberger, R.
A1  - Gruber, K.
A1  - Eiteljoerg, I.
A1  - Remler, P.
A1  - Wieland, S.
A1  - Siegert, Petra
A1  - Maurer, Karl-Heinz
A1  - Schwab, H.
T1  - C-terminal truncation of a metagenome-derived detergent protease for effective expression in E. coli
JF  - Journal of biotechnology
N2  - Recently, a new alkaline protease named HP70 showing highest homology to extracellular serine proteases of Stenotrophomonas maltophilia and Xanthomonas campestris was found in the course of a metagenome screening for detergent proteases (Niehaus et al., submitted for publication). Attempts to efficiently express the enzyme in common expression hosts had failed. This study reports on the realization of overexpression in Escherichia coli after structural modification of HP70. Modelling of HP70 resulted in a two-domain structure, comprising the catalytic domain and a C-terminal domain which includes about 100 amino acids. On the basis of the modelled structure the enzyme was truncated by deletion of most of the C-terminal domain yielding HP70-C477.

This structural modification allowed effective expression of active enzyme using E. coli BL21-Gold as the host. Specific activity of HP70-C477 determined with suc-l-Ala-l-Ala-l-Pro-l-Phe-p-nitroanilide as the substrate was 30 ± 5 U/mg compared to 8 ± 1 U/mg of the native enzyme. HP70-C477 was most active at 40 °C and pH 7–11; these conditions are prerequisite for a potential application as detergent enzyme. Determination of kinetic parameters at 40 °C and pH = 9.5 resulted in KM = 0.23 ± 0.01 mM and kcat = 167.5 ± 3.6 s⁻¹. MS-analysis of peptide fragments obtained from incubation of HP70 and HP70-C477 with insulin B indicated that the C-terminal domain influences the cleavage preferences of the enzyme. Washing experiments confirmed the high potential of HP70-C477 as detergent protease.
Y1  - 2010
U6  - http://dx.doi.org/10.1016/j.jbiotec.2010.09.947
SN  - 1873-4863 (E-Journal); 0168-1656 (Print)
VL  - 150
IS  - 3
SP  - 408
EP  - 416
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - PAT
A1  - Siegert, Petra
A1  - Mussmann, Nina
A1  - O'Connell, Timothy
A1  - Maurer, Karl-Heinz
T1  - Neue Proteasen und Mittel enthaltend diese Proteasen [Offenlegungsschrift]
T1  - Novel proteases and means containing said proteases [Internationale Patentanmeldung]
Y1  - 2010
SP  - 1
EP  - 30
PB  - Deutsches Patent- und Markenamt / WIPO
CY  - München / Genf
ER  - 
TY  - PAT
A1  - Siegert, Petra
A1  - Baumstark, Rebecca
A1  - Kluin, Cornelia
A1  - O'Connell, Timothy
A1  - Maurer, Karl-Heinz
A1  - Hellmuth, Hendrik
T1  - Neue Proteasen und Mittel enthaltend diese Proteasen [Offenlegungsschrift]
Y1  - 2010
SP  - 1
EP  - 30
PB  - Deutsches Patent- und Markenamt
CY  - München
ER  - 
TY  - PAT
A1  - Siegert, Petra
A1  - Spitz, Astrid
A1  - Maurer, Karl-Heinz
T1  - Neue Proteasen und Mittel enthaltend diese Proteasen [Offenlegungsschrift]
T1  - Novel proteases and compositions comprising these proteases [Internationale Patentanmeldung]
Y1  - 2010
SP  - 1
EP  - 31
PB  - Deutsches Patentamt / WIPO
CY  - München / Genf
ER  - 
TY  - PAT
A1  - Siegert, Petra
A1  - Spitz, Astrid
A1  - Maurer, Karl-Heinz
T1  - Wasch- und Reinigungsmittel enthaltend Proteasen aus Bacillus pumilus [Offenlegungsschrift]
T1  - Detergents and cleaning agents containing proteases from bacillus pumilus [Europäische Patentschrift / Internationale Patentanmeldung]
Y1  - 2010
SP  - 1
EP  - 20
PB  - Deutsches Patentamt / Europäisches Patentamt / WIPO
CY  - München / Den Hague / Genf
ER  - 
TY  - PAT
A1  - O'Connell, Timothy
A1  - Siegert, Petra
A1  - Evers, Stefan
A1  - Bongaerts, Johannes
A1  - Weber, Thomas
A1  - Maurer, Karl-Heinz
A1  - Bessler, Cornelius
T1  - Wasch- oder Reinigungsmittel mit gesteigerter Waschkraft [Offenlegungsschrift]
T1  - Method from improving the cleaning action of a detergent of cleaning agent [US Patentanmeldung]
Y1  - 2010
SP  - 1
EP  - 34
PB  - Deutsches Patentamt
CY  - München
ER  - 
TY  - PAT
A1  - O'Connell, Timothy
A1  - Siegert, Petra
A1  - Maurer, Karl-Heinz
A1  - Schiedel, Marc-Steffen
A1  - Vockenroth, Inga Kerstin
T1  - Method for improving the cleaning action of a detergent or cleaning agent [Internationale Patentanmeldung]
T1  - Verfahren zur Verbesserung der Reinigungsleistung eines Wasch- oder Reinigungsmittels
Y1  - 2010
SP  - 1
EP  - 15
PB  - WIPO
CY  - Genf
ER  - 
TY  - PAT
A1  - Bessler, Cornelius
A1  - Evers, Stefan
A1  - Maurer, Karl-Heinz
A1  - Merkel, Marion
A1  - Siegert, Petra
A1  - Weber, Angrit
A1  - Wieland, Susanne
T1  - Leistungsverbesserte Proteasen und Wasch- und Reinigungsmittel enthaltend diese Proteasen [Offenlegungsschrift]
T1  - Improved-performance proteases and detergents and cleaning agents comprising said proteases [Internationale Patentanmeldung]
Y1  - 2009
SP  - 1
EP  - 41
PB  - Deutsches Patent- und Markenamt / WIPO
CY  - München / Genf
ER  - 
TY  - PAT
A1  - Bessler, Cornelius
A1  - Maurer, Karl-Heinz
A1  - Merkel, Marion
A1  - Siegert, Petra
A1  - Wieland, Susanne
T1  - Subtilisin from Bacillus Pumilus and detergent and cleaning agents containing said novel subtilisin [US Patentanmeldung / Internationale Patentanmeldung]
Y1  - 2009
SP  - 1
EP  - 39
PB  - USPTO; WIPO
CY  - Washington; Genf
ER  - 
TY  - PAT
A1  - Siegert, Petra
A1  - Merkel, Marion
A1  - Kluin, Cornelia
A1  - O'Connell, Timothy
A1  - Maurer, Karl-Heinz
T1  - Wasch- und Reinigungsmittel enthaltend Proteasen aus Xanthomonas [Offenlegungsschrift]
T1  - Detergents and cleaners comprising proteases from xanthomonas [Internationale Patentanmeldung]
Y1  - 2008
SP  - 1
EP  - 15
PB  - Deutsches Patent- und Markenamt / WIPO
CY  - München / Genf
ER  - 
TY  - PAT
A1  - Berg, Gabriele
A1  - Bessler, Cornelius
A1  - Gerlach, Jochen
A1  - Gübitz, Georg
A1  - Heumann, Sonja
A1  - Karl, Wolfgang
A1  - Maurer, Karl-Heinz
A1  - Remler, Peter
A1  - Ribitsch, Doris
A1  - Schwab, Helmut
A1  - Siegert, Petra
A1  - Wieland, Susanne
T1  - Mittel enthaltend Proteasen aus Stenotrophomonas maltophilia [Offenlegungsschrift]
T1  - Agents containing proteases from Stenotrophomonas maltophilia [Europäische Patentanmeldung / US Patentanmeldung / Internationale Patentanmeldung]
Y1  - 2009
SP  - 1
EP  - 47
PB  - Deutsches Patent- und Markenamt / Europäisches Patentamt / USPTO / WIPO
CY  - München / Den Hague / Washington / Genf
ER  - 
TY  - PAT
A1  - Siegert, Petra
A1  - Wieland, Susanne
A1  - Engelskirchen, Julia
A1  - Merkel, Marion
A1  - Maurer, Karl-Heinz
A1  - Bessler, Cornelius
T1  - Neue Alkalische Protease aus Bacillus gibsonii und Wasch- und Reinigungsmittel enthaltend diese neue Alkalische Protease [Offenlegungsschrift]
T1  - Novel alkaline protease from Bacillus Gibsonii and washing and cleaning agents containing said novel alkaline protease [Europäische Patentanmeldung / US Patentanmeldung / Internationale Patentanmeldung]
Y1  - 2008
SP  - 1
EP  - 51
PB  - Deutsches Patentamt / Europäisches Patentamt / WIPO
CY  - München / Den Hague / Genf
ER  - 
TY  - PAT
A1  - Bessler, Cornelius
A1  - Maurer, Karl-Heinz
A1  - Merkel, Marion
A1  - Siegert, Petra
A1  - Wieland, Susanne
T1  - Subtilisin aus Bacillus pumilus und Wasch- und Reinigungsmittel enthaltend dieses neue Subtilisin [Offenlegungsschrift]
T1  - Subtilisin from Bacillus pumilus and washing and cleaning agents containing said novel subtilisin [Europäische Patentanmeldung / Internationale Patentanmeldung / Kanadische Patentanmeldung]
Y1  - 2007
SP  - 1
EP  - 47
PB  - Deutsches Patent- und Markenamt / Europäisches Patentamt / WIPO / CIPO
CY  - München / Den Hague / Genf
ER  - 
TY  - CHAP
A1  - Wendorff, Marion
A1  - Eggert, Thorsten
A1  - Pohl, Martina
A1  - Dresen, Carola
A1  - Müller, Michael
A1  - Jaeger, Karl-Erich
A1  - Sprenger, Georg A.
A1  - Schürmann, Melanie
A1  - Schürmann, Martin
A1  - Johnen, Sandra
A1  - Sprenger, Gerda
A1  - Sahm, Hermann
A1  - Inoue, Tomoyuki
A1  - Schörken, Ulrich
A1  - Breittaupt, Holger
A1  - Frölich, Bettina
A1  - Heim, Petra
A1  - Iding, Hans
A1  - Juchem, Bettina
A1  - Siegert, Petra
A1  - Kula, Maria-Regina
A1  - Weckbecker, Andrea
A1  - Hummel, Werner
A1  - Fessner, Wolf-Dieter
A1  - Elling, Lothar
A1  - Wolberg, Michael
A1  - Bode, Silke
A1  - Feldmann, Ralf
A1  - Geilenkirchen, Petra
A1  - Schubert, Thomas
A1  - Walter, Lydia
A1  - Dünnwald, Thomas
A1  - Demir, Ayhan S.
A1  - Kolter-Jung, Doris
A1  - Nitsche, Adam
A1  - Dünkelmann, Pascal
A1  - Cosp, Annabel
A1  - Lingen, Bettina
T1  - Catalytic asymmetric synthesis : section 2.2
T2  - Asymmetric synthesis with chemical and biological methods / ed. by Dieter Enders ...
Y1  - 2007
SN  - 978-3-527-31473-7
SP  - 298
EP  - 413
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - PAT
A1  - O'Connell, Timothy
A1  - Hoven, Nina
A1  - Siegert, Petra
A1  - Maurer, Karl-Heinz
T1  - Amadoriasen in Wasch- und Reinigungsmitteln [Offenlegungsschrift]
T1  - Amadoriases in washing and cleaning products [Europäische Patentanmeldung / Internationale Patentanmeldung]
Y1  - 2007
SP  - 1
EP  - 45
PB  - Deutsches Patent- und Markenamt / Europäisches Patentamt / WIPO
CY  - München / Den Hague / Genf
ER  - 
TY  - PAT
A1  - Merkel, Marion
A1  - Weber, Angrit
A1  - Siegert, Petra
A1  - Wieland, Susanne
A1  - Maurer, Karl-Heinz
A1  - Bessler, Cornelius
T1  - Neue Alkalische Protease aus Bacillus gibsonii und Wasch- und Reinigungsmittel enthaltend diese neue Alkalische Protease [Offenlegungsschrift]
T1  - Novel alkaline protease from Bacillus Gibsonii and washing and cleaning agents containing said novel alkaline protease [Internationale Patentanmeldung]
Y1  - 2007
SP  - 1
EP  - 46
PB  - Deutsches Patent- und Markenamt / WIPO
CY  - München / Genf
ER  - 
TY  - JOUR
A1  - Siegert, Petra
A1  - McLeish, Michael J.
A1  - Baumann, Martin
A1  - Iding, Hans
A1  - Kneen, Malea M.
A1  - Kenyon, George L.
A1  - Pohl, Martina
T1  - Exchanging the substrate specificities of pyruvate decarboxylase from Zymomonas mobilis and benzoylformate decarboxylase from Pseudomonas putida
JF  - Protein engineering, design, and selection : peds
Y1  - 2005
SN  - 1460-213X (E-Journal); 1741-0134 (E-Journal); 0269-2139 (Print); 1741-0126 (Print)
VL  - Vol. 18
IS  - Iss. 7
SP  - 345
EP  - 357
ER  - 
TY  - PAT
A1  - Schulze zur Wiesche, Erik
A1  - Otto, Ralf
A1  - Kleen, Astrid
A1  - Hollenberg, Detlef
A1  - Sättler, Andrea
A1  - Siegert, Petra
A1  - Boßmann, Britta
T1  - Verfahren zur dauerhaften Ausrüstung keratinischer Fasern mit Pflegewirkstoffen durch Carboxylesterhydrolasen [Offenlegungsschrift]
T1  - Method for the permanent deposition of conditioning agents on keratinic fibres using carboxylester hydrolases [Europäische Patentanmeldung]
Y1  - 2005
SP  - 1
EP  - 13
PB  - Deutsches Patent- und Markenamt / Europäisches Patentamt
CY  - München / Den Hague
ER  - 
TY  - PAT
A1  - Kluin, Cornelia
A1  - Maurer, Karl-Heinz
A1  - Banowski, Bernhard
A1  - Bessler, Cornelius
A1  - Siegert, Petra
T1  - Verwendung von Siderophoren gegen Geruchskeime [Offenlegungsschrift]
T1  - Use of siderophores for control of odor-producing bacteria, particularly for treating or preventing body odor, act by depriving bacteria of iron
Y1  - 2005
SP  - 1
EP  - 32
PB  - Deutsches Patent- und Markenamt
CY  - München
ER  - 
TY  - PAT
A1  - Banowski, Bernhard
A1  - Wadle, Armin
A1  - Siegert, Petra
T1  - Use of hydroxydiphenyl ether derivatives as arylsulfatase-inhibitors in deodorants and antiperspirants [Europäische Patentanmeldung / US Patentanmeldung / Australische Patentanmeldung / Internationale Patentanmeldung]
T1  - Verwendung von Hydroxydiphenylether-Derivaten als Arylsulfatase-Hemmer in Deodorants und Antitranspirantien
Y1  - 2005
SP  - 1
EP  - 40
PB  - Europäisches Patentamt / USPTO / IP Australia / WIPO
CY  - Den Hague / Washington / Canberra/ Genf
ER  - 
TY  - CHAP
A1  - Siegert, Petra
A1  - Pohl, Martina
A1  - Kneen, Malea M.
A1  - Pogozheva, Irina D.
A1  - Kenyon, George L.
A1  - McLeish, Michael J.
T1  - Exploring the substrate specificity of benzoylformate decarboxylase, pyruvate decarboxylase, and benzaldehyde lyase
T2  - Thiamine : catalytic mechanisms in normal and disease states / ed. by Frank Jordan ...
Y1  - 2004
SN  - 0-8247-4062-9
SP  - 275
EP  - 290
PB  - Dekker
CY  - New York, NY
ER  - 
TY  - PAT
A1  - Banowski, Bernhard
A1  - Wadle, Armin
A1  - Siegert, Petra
T1  - Arylsulfatase-Inhibitoren in Deodorantien und Antitranspirantien [Offenlegungsschrift]
T1  - Arylsulfatase inhibitors in deodorants and antiperspirants [Europäische Patentanmeldung]
Y1  - 2004
SP  - 1
EP  - 15
PB  - Deutsches Patent- und Markenamt / Europäisches Patentamt
CY  - München / Den Hague
ER  - 
TY  - PAT
A1  - Schmitz, Susanne
A1  - Spitz, Astrid
A1  - Merkel, Marion
A1  - Siegert, Petra
T1  - Verfahren zur Bestimmung des enzymatischen Status humaner Haut in vitro [Offenlegungsschrift]
T1  - Method for determining the enzymatic status of human skin in vitro [Europäische Patentanmeldung / Australische Patentanmeldung / Internationale Patentanmeldung]
Y1  - 2004
SP  - 1
EP  - 7
PB  - Deutsches Patent- und Markenamt / Europäisches Patentamt / IP Australia / WIPO
CY  - München / Den Hague / Canberra / Genf
ER  - 
TY  - PAT
A1  - Banowski, Bernhard
A1  - Wadle, Armin
A1  - Siegert, Petra
A1  - Sättler, Andrea
T1  - Lipase-Inhibitoren in Deodorantien und Antitranspirantien [Offenlegungsschrift]
T1  - Lipase inhibitors in deodorants and antiperspirants [Europäische Patentanmeldung]
Y1  - 2004
SP  - 1
EP  - 22
PB  - Deutsches Patent- und Markenamt / Europäisches Patentamt
CY  - München / Den Hague
ER  - 
TY  - PAT
A1  - Banowski, Bernhard
A1  - Waldmann-Laue, Marianne
A1  - Wadle, Armin
A1  - Siegert, Petra
A1  - Sättler, Andreas
T1  - 5-Lipoxigenase-Inhibitoren in Deodorantien und Antitranspirantien [Offenlegungsschrift]
T1  - 5-Lipooxygenase inhibitors in deodorants and antiperspirants [Europäische Patentanmeldung]
Y1  - 2004
SP  - 1
EP  - 12
PB  - Deutsches Patent- und Markenamt / Europäisches Patentamt
CY  - München / Den Hague
ER  - 
TY  - PAT
A1  - Bankowski, Bernhard
A1  - Hoffmann, Daniele
A1  - Wadle, Armin
A1  - Siegert, Petra
A1  - Sättler, Andrea
A1  - Gerke, Thomas
T1  - Beta-Glucuronidase-Inhibitoren in Deodorantien und Antitranspirantien [Offenlegungsschrift]
T1  - Beta-Glucuronidase inhibitors for use in deodorants and antiperspirants [Europäische Patentanmeldung / Internationale Patentanmeldung]
Y1  - 2003
SP  - 1
EP  - 24
PB  - Deutsches Patent- und Markenamt / Europäisches Patentamt / WIPO
CY  - München / Den Hague / Genf
ER  - 
TY  - PAT
A1  - Siegert, Petra
A1  - Bankowski, Bernhard
T1  - Verwendung von Steroidsulfatase-Inhibitoren zur Verminderung von Haarausfall ; Kosmetische und pharmazeutische Zusammensetzungen enthaltend Steroidsulfatase-Inhibitoren und deren Verwendung zur Verminderung von Haarausfall [Offenlegungsschrift]
T1  - Cosmetic and pharmaceutical compositions comprising steroid sulfatase inhibitors and their use for the reduction of hair loss [Europäische Patentanmeldung]
Y1  - 2003
SP  - 1
EP  - 38
PB  - Deutsches Patent- und Markenamt / Europäisches Patentamt
CY  - München / Den Hague
ER  - 
TY  - PAT
A1  - Banowski, Bernhard
A1  - Wadle, Armin
A1  - Siegert, Petra
T1  - Arylsulfatase-Inhibitoren in Deodorantien und Antitranspirantien [Offenlegungsschrift]
T1  - Reducing body odor, e.g. in men, comprises applying deodorant or antiperspirant composition containing arylsulfatase-inhibiting phenoxyphenol derivative to skin
Y1  - 2003
SP  - 1
EP  - 20
PB  - Deutsches Patent- und Markenamt
CY  - München
ER  - 
TY  - JOUR
A1  - Dünkelmann, Pascal
A1  - Kolter-Jung, Doris
A1  - Nitsche, Adam
A1  - Demir, Ayhan S.
A1  - Siegert, Petra
A1  - Lingen, Bettina
A1  - Baumann, Martin
A1  - Pohl, Martina
A1  - Müller, Michael
T1  - Development of a donor-acceptor concept for enzymatic cross-coupling reactions of adehydes : the first asymmetric cross-benzoin condensation
JF  - Journal of the American Chemical Society
Y1  - 2002
SN  - 1520-5126 (E-Journal); 0002-7863 (Print)
VL  - Vol. 124
SP  - 12084
EP  - 12085
ER  - 
TY  - PAT
A1  - Banowski, Bernhard
A1  - Hoffmann, Daniele
A1  - Wadle, Armin
A1  - Siegert, Petra
A1  - Sättler, Andrea
A1  - Gerke, Thomas
T1  - Arylsulfatase-Inhibitoren in Deodorantien und Antitranspirantien [Offenlegungsschrift]
T1  - Arylsufatas-inhibitors in deodorants and antiperspirants[Europäische Patentschrift / Österreichische Patentanmeldung / Polnische Patentanmeldung / Internationale Patentanmeldung]
Y1  - 2002
SP  - 1
EP  - 22
PB  - Deutsches Patent- und Markenamt / Polish Patent Office / WIPO
CY  - München / Warsaw / Genf
ER  - 
TY  - JOUR
A1  - Dünnwald, Thomas
A1  - Demir, Ayhan S.
A1  - Siegert, Petra
A1  - Pohl, Martina
A1  - Müller, Michael
T1  - ChemInform Abstract: Enantioselective synthesis of (S)-2-Hydroxypropanone derivatives by Benzoylformate Decarboxylase Catalyzed C—C Bond Formation
JF  - Cheminform
Y1  - 2001
SN  - 1522-2667 (E-Journal); 0931-7597 (Print)
VL  - Vol. 32
IS  - Iss. 4
SP  - Publ. online
ER  - 
TY  - JOUR
A1  - Dünnwald, Thomas
A1  - Demir, Ayhan S.
A1  - Siegert, Petra
A1  - Pohl, Martina
A1  - Müller, Michael
T1  - Enantioselective Synthesis of (S)-2-Hydroxypropanone Derivatives by Benzoylformate Decarboxylase Catalyzed C−C Bond Formation
JF  - European journal of organic chemistry
Y1  - 2000
SN  - 0365-5490 (E-Journal); 1099-0690 (E-Journal); 0075-4617 (Print); 0170-2041 (Print); 0947-3440 (Print); 1434-193X (Print); 1434-243X (Print)
VL  - Vol. 2000
IS  - Iss. 11
SP  - 2161
EP  - 2170
ER  - 
TY  - CHAP
A1  - Siegert, Petra
A1  - Iding, Hans
A1  - Baumann, Martin
A1  - McLeish, Michael J.
A1  - Kenyon, George L.
A1  - Pohl, Martina
T1  - Broadening of the substrate spectra of two ThDP-dependent decarboxylases using site-directed-mutagenesis
T2  - Proceedings of the 4th International Congress on Biochemical Engineering : 17 and 18 February 2000, Stuttgart
Y1  - 2000
SN  - 3-8167-5570-4
SP  - 38
EP  - 42
ER  - 
TY  - JOUR
A1  - Iding, Hans
A1  - Dünnwald, Thomas
A1  - Greiner, Lasse
A1  - Liese, Andreas
A1  - Müller, Michael
A1  - Siegert, Petra
A1  - Grötzinger, Joachim
A1  - Demir, Ayhan S.
A1  - Pohl, Martina
T1  - Benzoylformate Decarboxylase from Pseudomonas putida as Stable Catalyst for the Synthesis of Chiral 2-Hydroxy Ketones
JF  - Chemistry - a European journal
Y1  - 2000
SN  - 1521-3765 (E-Journal); 0947-6539 (Print)
VL  - Vol. 6
IS  - Iss. 8
SP  - 1483
EP  - 1495
ER  - 
TY  - JOUR
A1  - Iding, Hans
A1  - Siegert, Petra
A1  - Mesch, K.
A1  - Pohl, Martina
T1  - Application of α-keto acid decarboxylases in biotransformations
JF  - Biochimica et biophysica acta (BBA) - Protein structure and molecular enzymology
Y1  - 1998
SN  - 1879-2588 (E-Journal); 0167-4838 (Print)
VL  - Vol. 1385
IS  - Iss. 2
SP  - 307
EP  - 322
ER  - 
TY  - JOUR
A1  - Pohl, Martina
A1  - Siegert, Petra
A1  - Mesch, K.
A1  - Bruhn, H.
A1  - Grötzinger, Joachim
T1  - Active site mutants of pyruvate decarboxylase from Zymomonas mobilis : a site-directed mutagenesis study of L112, I472, I476, E473 and N482
JF  - European journal of biochemistry
Y1  - 1998
SN  - 1432-1033 (E-Journal); 1742-4658 (E-Journal); 0014-2956 (Print); 1742-464X (Print)
VL  - Vol. 257
IS  - Iss. 3
SP  - 538
EP  - 546
ER  -