ClpP1P2 peptidase activity promotes biofilm formation in Pseudomonas aeruginosa.
ClpP1P2 peptidase activity promotes biofilm formation in Pseudomonas aeruginosa.
复制标题
ClpP1P2肽酶活性促进铜绿假单胞菌生物膜的形成。
DOI:
10.1111/mmi.14649
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发表时间:
2021-06
影响因子:
3.6
通讯作者:
Baker TA
中科院分区:
文献类型:
--
作者:
Mawla GD;Hall BM;Cárcamo-Oyarce G;Grant RA;Zhang JJ;Kardon JR;Ribbeck K;Sauer RT;Baker TA
Caseinolytic proteases (Clp) are central to bacterial proteolysis and control cellular physiology and stress responses. They are composed of a double-ring compartmentalized peptidase (ClpP) and a AAA+ unfoldase (ClpX or ClpA/ClpC). Unlike many bacteria, the opportunistic pathogen P. aeruginosa contains two ClpP homologs: ClpP1 and ClpP2. The specific functions of these homologs, however, are largely elusive. Here, we report that the active form of PaClpP2 is a part of a heteromeric PaClpP17P27 tetradecamer that is required for proper biofilm development. PaClpP114 and PaClpP17P27 complexes exhibit distinct peptide cleavage specificities and interact differentially with P. aeruginosa ClpX and ClpA. Crystal structures reveal that PaClpP2 has non-canonical features in its N- and C-terminal regions that explain its poor interaction with unfoldases. However, experiments in vivo indicate that the PaClpP2 peptidase active site uniquely contributes to biofilm development. These data strongly suggest that the specificity of different classes of ClpP peptidase subunits contributes to the biological outcome of proteolysis. This specialized role of PaClpP2 highlights it as an attractive target for developing antimicrobial agents that interfere specifically with late-stage P. aeruginosa development.
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DOI:
10.1016/j.bbamcr.2011.06.007
发表时间:
2012-01
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
Baker TA;Sauer RT
通讯作者:
Sauer RT
影响因子:
3
作者:
Alexopoulos, John A.;Guarne, Alba;Ortega, Joaquin
通讯作者:
Ortega, Joaquin
DOI:
10.1107/s0907444909052925
发表时间:
2010-02
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Adams PD;Afonine PV;Bunkóczi G;Chen VB;Davis IW;Echols N;Headd JJ;Hung LW;Kapral GJ;Grosse-Kunstleve RW;McCoy AJ;Moriarty NW;Oeffner R;Read RJ;Richardson DC;Richardson JS;Terwilliger TC;Zwart PH
通讯作者:
Zwart PH
影响因子:
5.1
作者:
Arevalo-Ferro, C;Hentzer, M;Eberl, L
通讯作者:
Eberl, L
影响因子:
3.2
作者:
Hall, Branwen M.;Breidenstein, Elena B. M.;Baker, Tania A.
通讯作者:
Baker, Tania A.