Probable GrpE protein (HSP-70 cofactor); Participates actively in the response to hyperosmotic and heat shock by preventing the aggregation of stress-denatured proteins, in association with DnaK and GrpE. It is the nucleotide exchange factor for DnaK and may function as a thermosensor. Unfolded proteins bind initially to DnaJ; upon interaction with the DnaJ-bound protein, DnaK hydrolyzes its bound ATP, resulting in the formation of a stable complex. GrpE releases ADP from DnaK; ATP binding to DnaK triggers the release of the substrate protein, thus completing the reaction cycle. Severa [...]

Probable chaperone protein DnaJ1; Participates actively in the response to hyperosmotic and heat shock by preventing the aggregation of stress-denatured proteins and by disaggregating proteins, also in an autonomous, DnaK-independent fashion. Unfolded proteins bind initially to DnaJ; upon interaction with the DnaJ-bound protein, DnaK hydrolyzes its bound ATP, resulting in the formation of a stable complex. GrpE releases ADP from DnaK; ATP binding to DnaK triggers the release of the substrate protein, thus completing the reaction cycle. Several rounds of ATP-dependent interactions betwe [...]

Probable ATP-dependent CLP protease proteolytic subunit 1 ClpP1 (endopeptidase CLP); Cleaves peptides in various proteins in a process that requires ATP hydrolysis. Has a chymotrypsin-like activity. Plays a major role in the degradation of misfolded proteins (By similarity). Degrades anti-sigma-D factor (rsdA) when present in a complex with ClpP2 and ClpX. Does not seem to act on anti-sigma-L factor (rslA). Belongs to the peptidase S14 family.

Probable ATP-dependent CLP protease proteolytic subunit 2 ClpP2 (endopeptidase CLP 2); Cleaves peptides in various proteins in a process that requires ATP hydrolysis. Has a chymotrypsin-like activity. Plays a major role in the degradation of misfolded proteins (By similarity). Degrades anti-sigma-D factor RsdA when present in a complex with ClpP1 and ClpX. Degrades anti-sigma-E factor RseA in the presence of ClpC1. Does not seem to act on anti-sigma-L factor RslA. Belongs to the peptidase S14 family.

Rv0251c, (MTV034.17c), len: 159 aa. Hsp (alternate gene name: hsp20, hrpA, acr2), heat-stress-induced ribosome-binding protein A (see citations below). Highly similar to AAD39038.1|AF072875_1|AF072875 putative HSP20 from Mycobacterium smegmatis (145 aa), FASTA scores: opt: 479, E(): 2.3e-24, (59.9% identity in 157 aa overlap); and similar to many bacterial and eukaryotic hsp proteins e.g. P12811|HS2C_CHLRE chloroplast heat shock 22KD protein from chlamydomonas reinhardtii (157 aa), FASTA scores: opt: 184,E(): 1.2e-05, (32.4% identity in 142 aa overlap). Also similar to PCC6803 Spore pr [...]

Probable chaperone protein DnaJ2; Participates actively in the response to hyperosmotic and heat shock by preventing the aggregation of stress-denatured proteins and by disaggregating proteins, also in an autonomous, DnaK-independent fashion. Unfolded proteins bind initially to DnaJ; upon interaction with the DnaJ-bound protein, DnaK hydrolyzes its bound ATP, resulting in the formation of a stable complex. GrpE releases ADP from DnaK; ATP binding to DnaK triggers the release of the substrate protein, thus completing the reaction cycle. Several rounds of ATP-dependent interactions betwe [...]

10 kDa chaperonin GroES (protein CPN10) (protein GroES) (BCG-a heat shock protein) (10 kDa antigen); Binds to Cpn60 in the presence of Mg-ATP and suppresses the ATPase activity of the latter; Belongs to the GroES chaperonin family.

Chaperone protein HtpG; Molecular chaperone. Has ATPase activity.

Conserved hypothetical protein; Involved in the modulation of the specificity of the ClpAP- mediated ATP-dependent protein degradation; Belongs to the ClpS family.