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Functional Diversity of AAA+ Protease Complexes in Bacillus subtilis.
Elsholz AKW, Birk MS, Charpentier E, Turgay K. Elsholz AKW, et al. Front Mol Biosci. 2017 Jul 12;4:44. doi: 10.3389/fmolb.2017.00044. eCollection 2017. Front Mol Biosci. 2017. PMID: 28748186 Free PMC article. Review.
Here, we review the diverse roles and functions of AAA+ protease complexes in protein homeostasis, control of stress response and cellular development pathways by regulatory and general proteolysis in the Gram-positive model organism B
Here, we review the diverse roles and functions of AAA+ protease complexes in protein homeostasis, contro …
PrkA is an ATP-dependent protease that regulates sporulation in Bacillus subtilis.
Zhang A, Lebrun R, Espinosa L, Galinier A, Pompeo F. Zhang A, et al. J Biol Chem. 2022 Oct;298(10):102436. doi: 10.1016/j.jbc.2022.102436. Epub 2022 Aug 28. J Biol Chem. 2022. PMID: 36041628 Free PMC article.
However, the kinase activity of PrkA has not been clearly demonstrated, and neither its autophosphorylation nor phosphorylated substrates have been unambiguously established in B. subtilis. We demonstrated here that PrkA regulation of ScoC is likely indirect. Following bio …
However, the kinase activity of PrkA has not been clearly demonstrated, and neither its autophosphorylation nor phosphorylated substrates ha …
Genomic insight into the salt tolerance and proteolytic activity of Bacillus subtilis.
Lee S, Seo S, Sul S, Jeong DW, Lee JH. Lee S, et al. FEMS Microbiol Lett. 2023 Jan 17;370:fnad105. doi: 10.1093/femsle/fnad105. FEMS Microbiol Lett. 2023. PMID: 37816668
We assessed the salt tolerance and proteolytic activity of 40 genome-published Bacillus subtilis strains isolated from fermented Korean foods to illuminate the genomic background behind the functionality of B. subtilis in high-salt fermentation. ...The …
We assessed the salt tolerance and proteolytic activity of 40 genome-published Bacillus subtilis strains isolated from ferment …
ClpX/P-Dependent Degradation of Novel Substrates in Streptococcus mutans.
Gurung V, Biswas I. Gurung V, et al. J Bacteriol. 2022 Apr 19;204(4):e0059421. doi: 10.1128/jb.00594-21. Epub 2022 Mar 28. J Bacteriol. 2022. PMID: 35343773 Free PMC article.
Regulated proteolysis is where AAA+ ATPases (ClpX, ClpC, and ClpE) are coupled to a protease subunit (ClpP) to facilitate degradation of misfolded and native regulatory proteins in the cell. ...This is surprising since MecA is known to be degraded by ClpC/P i …
Regulated proteolysis is where AAA+ ATPases (ClpX, ClpC, and ClpE) are coupled to a protease subunit (ClpP) to facilita …
Proteolytic Regulation in the Biosynthesis of Natural Product Via a ClpP Protease System.
Ishikawa F, Uchida C, Tanabe G. Ishikawa F, et al. ACS Chem Biol. 2024 Aug 16;19(8):1794-1802. doi: 10.1021/acschembio.4c00304. Epub 2024 Aug 3. ACS Chem Biol. 2024. PMID: 39096241
ClpPs are a highly conserved family of serine proteases that associate with the AAA + ATPase (an ATPase associated with diverse cellular activities) to degrade protein substrates. ...Consequently, expanding the repertoire of protein substrates t …
ClpPs are a highly conserved family of serine proteases that associate with the AAA + ATPase (an ATPase associated with div
Loss-of-function mutations in yjbD result in ClpX- and ClpP-independent competence development of Bacillus subtilis.
Nakano MM, Hajarizadeh F, Zhu Y, Zuber P. Nakano MM, et al. Mol Microbiol. 2001 Oct;42(2):383-94. doi: 10.1046/j.1365-2958.2001.02639.x. Mol Microbiol. 2001. PMID: 11703662 Free article.
Mutations in clpP and clpX have pleiotropic effects on growth and developmentally regulated gene expression in Bacillus subtilis. ClpP and ClpX are needed for expression of comK, encoding the competence transcription factor required for the expression of genes withi …
Mutations in clpP and clpX have pleiotropic effects on growth and developmentally regulated gene expression in Bacillus subtilis
AAA+ proteins and substrate recognition, it all depends on their partner in crime.
Dougan DA, Mogk A, Zeth K, Turgay K, Bukau B. Dougan DA, et al. FEBS Lett. 2002 Oct 2;529(1):6-10. doi: 10.1016/s0014-5793(02)03179-4. FEBS Lett. 2002. PMID: 12354604 Free article. Review.
Members of the AAA+ superfamily have been identified in all organisms studied to date. They are involved in a wide range of cellular events. ...These usually small proteins specifically modify the substrate recognition of their AAA+ partner protein. The occur …
Members of the AAA+ superfamily have been identified in all organisms studied to date. They are involved in a wide range of cellul
The ClpX protein of Bacillus subtilis indirectly influences RNA polymerase holoenzyme composition and directly stimulates sigma-dependent transcription.
Liu J, Zuber P. Liu J, et al. Mol Microbiol. 2000 Aug;37(4):885-97. doi: 10.1046/j.1365-2958.2000.02053.x. Mol Microbiol. 2000. PMID: 10972809 Free article.
In Bacillus subtilis, several processes associated with the onset of stationary phase, including the initiation of sporulation, require the activity of the minor sigmaH form of RNA polymerase (RNAP). ...No difference in transcriptional activity was observed i …
In Bacillus subtilis, several processes associated with the onset of stationary phase, including the initiation of spor …
Regulated protein aggregation: a mechanism to control the activity of the ClpXP adaptor protein YjbH.
Engman J, von Wachenfeldt C. Engman J, et al. Mol Microbiol. 2015 Jan;95(1):51-63. doi: 10.1111/mmi.12842. Epub 2014 Nov 28. Mol Microbiol. 2015. PMID: 25353645 Free article.
Bacteria use stress response pathways to activate diverse target genes to react to a variety of stresses. The Bacillus subtilis Spx protein is a global transcriptional regulator that controls expression of more than 140 genes and operons in response to thiol- …
Bacteria use stress response pathways to activate diverse target genes to react to a variety of stresses. The Bacillus subt
Structure and mechanism of the hexameric MecA-ClpC molecular machine.
Wang F, Mei Z, Qi Y, Yan C, Hu Q, Wang J, Shi Y. Wang F, et al. Nature. 2011 Mar 17;471(7338):331-5. doi: 10.1038/nature09780. Epub 2011 Mar 2. Nature. 2011. PMID: 21368759
Bacterial ClpC, a member of the Clp/Hsp100 family of AAA+ proteins (ATPases associated with diverse cellular activities) with two nucleotide-binding domains (D1 and D2), requires the adaptor protein MecA for activation and substrat …
Bacterial ClpC, a member of the Clp/Hsp100 family of AAA+ proteins (ATPases associated with diverse ce