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  - JOUR
A1  - Degering, Christian
A1  - Eggert, Thorsten
A1  - Puls, Michael
A1  - Bongaerts, Johannes
A1  - Evers, Stefan
A1  - Maurer, Karl-Heinz
A1  - Jaeger, Karl-Erich
T1  - Optimization of protease secretion in Bacillus subtilis and Bacillus licheniformis by screening of homologous and herologous signal peptides
JF  - Applied and environmental microbiology
N2  - Bacillus subtilis and Bacillus licheniformis are widely used for the large-scale industrial production of proteins. These strains can efficiently secrete proteins into the culture medium using the general secretion (Sec) pathway. A characteristic feature of all secreted proteins is their N-terminal signal peptides, which are recognized by the secretion machinery. Here, we have studied the production of an industrially important secreted protease, namely, subtilisin BPN′ from Bacillus amyloliquefaciens. One hundred seventy-three signal peptides originating from B. subtilis and 220 signal peptides from the B. licheniformis type strain were fused to this secretion target and expressed in B. subtilis, and the resulting library was analyzed by high-throughput screening for extracellular proteolytic activity. We have identified a number of signal peptides originating from both organisms which produced significantly increased yield of the secreted protease. Interestingly, we observed that levels of extracellular protease were improved not only in B. subtilis, which was used as the screening host, but also in two different B. licheniformis strains. To date, it is impossible to predict which signal peptide will result in better secretion and thus an improved yield of a given extracellular target protein. Our data show that screening a library consisting of homologous and heterologous signal peptides fused to a target protein can identify more-effective signal peptides, resulting in improved protein export not only in the original screening host but also in different production strains.
Y1  - 2010
U6  - http://dx.doi.org/10.1128/AEM.01146-10
SN  - 1098-5336 (E-Journal); 0003-6919 (Print); 0099-2240 (Print)
VL  - 76
IS  - 19
SP  - 6370
EP  - 6378
PB  - American Society for Microbiology
CY  - Washington, DC
ER  -