Activating Compound | Comment | Organism | Structure |
---|---|---|---|
prefoldin | PFD, is required for protein substrate folding | Homo sapiens |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
Mg2+ | required | Homo sapiens |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
ATP + H2O | Homo sapiens | - |
ADP + phosphate | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Homo sapiens | P17987 AND P78371 AND P49368 AND P50991 AND P48643 AND P40227 AND Q99832 AND P50990 | genes CCT1-8 encoding subunits CCT-alpha, CCT-beta, CCT-gamma, CCT-delta, CCT-epsilon, CCT-zeta-1, CCT-eta, and CCT-theta | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
ATP + H2O | - |
Homo sapiens | ADP + phosphate | - |
? | |
additional information | the hetero-oligomeric chaperonin of eukarya, TRiC, is required to fold the cytoskeletal protein actin. Actin fails to fold spontaneously even in the absence of aggregation but populates a kinetically trapped, conformationally dynamic state. Analysis of the unique features of TRiC directing the folding pathway of an obligate eukaryotic substrate, overview. Binding to TRiC stabilizes a native-like structure in actin. ATP binding induces an asymmetric TRiC intermediate and selective actin release. Substrate recognition mechanism by GroEL and TRiC, and folding mechanism of actin overview | Homo sapiens | ? | - |
- |
Subunits | Comment | Organism |
---|---|---|
octamer | - |
Homo sapiens |
Synonyms | Comment | Organism |
---|---|---|
CCT | - |
Homo sapiens |
eukaryotic chaperone complex | - |
Homo sapiens |
TriC | - |
Homo sapiens |
General Information | Comment | Organism |
---|---|---|
metabolism | pathway of actin folding directed by the eukaryotic chaperonin TRiC, overview | Homo sapiens |
additional information | conformational dynamics of native and chaperonin-bound actin by equilibrium hydrogen/deuterium exchange-mass spectrometry, overview | Homo sapiens |
physiological function | The hetero-oligomeric chaperonin of eukarya, TRiC, is required to fold the cytoskeletal protein actin. The eukaryotic chaperone complex TRiC, but not the simpler bacterial chaperonin system, GroEL/GroES, is able to induce the proper folding of actin. Actin fails to fold spontaneously, strictly requiring TRiC chaperonin for folding. Actin binding to TRiC specifies a unique topology for productive folding. ATP binding induces an asymmetric TRiC intermediate and selective actin release. Stepwise folding on and inside TRiC allows actin to access the native state | Homo sapiens |