HslUV protease complex / endopeptidase Clp / endopeptidase Clp complex / positive regulation of programmed cell death / response to temperature stimulus / ATP-dependent peptidase activity / protein quality control for misfolded or incompletely synthesized proteins / protein unfolding / proteasomal protein catabolic process / serine-type peptidase activity ...HslUV protease complex / endopeptidase Clp / endopeptidase Clp complex / positive regulation of programmed cell death / response to temperature stimulus / ATP-dependent peptidase activity / protein quality control for misfolded or incompletely synthesized proteins / protein unfolding / proteasomal protein catabolic process / serine-type peptidase activity / response to radiation / ATPase binding / cellular response to heat / response to heat / response to oxidative stress / serine-type endopeptidase activity / ATP hydrolysis activity / proteolysis / ATP binding / identical protein binding / membrane / cytosol / cytoplasm 類似検索 - 分子機能
ATP-dependent Clp protease ATP-binding subunit ClpA / ClpA/B, conserved site 2 / Chaperonins clpA/B signature 2. / ClpP, Ser active site / ClpA/B, conserved site 1 / Endopeptidase Clp serine active site. / Chaperonins clpA/B signature 1. / ClpA/ClpB, AAA lid domain / AAA lid domain / ClpP, histidine active site ...ATP-dependent Clp protease ATP-binding subunit ClpA / ClpA/B, conserved site 2 / Chaperonins clpA/B signature 2. / ClpP, Ser active site / ClpA/B, conserved site 1 / Endopeptidase Clp serine active site. / Chaperonins clpA/B signature 1. / ClpA/ClpB, AAA lid domain / AAA lid domain / ClpP, histidine active site / Endopeptidase Clp histidine active site. / Clp amino terminal domain, pathogenicity island component / : / ATP-dependent Clp protease proteolytic subunit / Clp, repeat (R) domain / Clp repeat (R) domain profile. / Clp, N-terminal domain superfamily / Clp protease proteolytic subunit /Translocation-enhancing protein TepA / Clp protease / ClpA/B family / Clp ATPase, C-terminal / AAA domain (Cdc48 subfamily) / C-terminal, D2-small domain, of ClpB protein / C-terminal, D2-small domain, of ClpB protein / ClpP/crotonase-like domain superfamily / ATPase family associated with various cellular activities (AAA) / ATPase, AAA-type, core / ATPases associated with a variety of cellular activities / AAA+ ATPase domain / P-loop containing nucleoside triphosphate hydrolase 類似検索 - ドメイン・相同性
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
米国
引用
ジャーナル: Nat Struct Mol Biol / 年: 2020 タイトル: Conformational plasticity of the ClpAP AAA+ protease couples protein unfolding and proteolysis. 著者: Kyle E Lopez / Alexandrea N Rizo / Eric Tse / JiaBei Lin / Nathaniel W Scull / Aye C Thwin / Aaron L Lucius / James Shorter / Daniel R Southworth / 要旨: The ClpAP complex is a conserved bacterial protease that unfolds and degrades proteins targeted for destruction. The ClpA double-ring hexamer powers substrate unfolding and translocation into the ...The ClpAP complex is a conserved bacterial protease that unfolds and degrades proteins targeted for destruction. The ClpA double-ring hexamer powers substrate unfolding and translocation into the ClpP proteolytic chamber. Here, we determined high-resolution structures of wild-type Escherichia coli ClpAP undergoing active substrate unfolding and proteolysis. A spiral of pore loop-substrate contacts spans both ClpA AAA+ domains. Protomers at the spiral seam undergo nucleotide-specific rearrangements, supporting substrate translocation. IGL loops extend flexibly to bind the planar, heptameric ClpP surface with the empty, symmetry-mismatched IGL pocket maintained at the seam. Three different structures identify a binding-pocket switch by the IGL loop of the lowest positioned protomer, involving release and re-engagement with the clockwise pocket. This switch is coupled to a ClpA rotation and a network of conformational changes across the seam, suggesting that ClpA can rotate around the ClpP apical surface during processive steps of translocation and proteolysis.