The Enzyme Database

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EC 3.6.4.9     
Accepted name: chaperonin ATPase
Reaction: ATP + H2O = ADP + phosphate
Other name(s): chaperonin
Systematic name: ATP phosphohydrolase (polypeptide-unfolding)
Comments: Multisubunit proteins with 2x7 (Type I, in most cells) or 2x8 (Type II, in Archaea) ATP-binding sites involved in maintaining an unfolded polypeptide structure before folding or entry into mitochondria and chloroplasts. Molecular masses of subunits ranges from 10-90 kDa. They are a subclass of molecular chaperones that are related to EC 3.6.4.8 (proteasome ATPase).
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB
References:
1.  Hemmingsen, S.M., Woolford, C., van der Vies, S.M., Tilly, K., Dennis, D.T., Georgopoulos, G.C., Hendrix, R.W. and Ellis, R.J. Homologous plant and bacterial proteins: chaperone oligomeric protein assembly. Nature 333 (1988) 330–334. [PMID: 2897629]
2.  Lubber, T.H., Donaldson, G.K., Viitanen, P.V. and Gatenby, A.A. Several proteins imported into chloroplasts form stable complexes with the GroEL-related chloroplast molecular chaperone. Plant Cell 1 (1989) 1223–1230. [PMID: 2577724]
3.  Ellis, R.J. (Ed.), The Chaperonins, Academic Press, San Diego, 1996.
4.  Ranson, N.A., White, H.E. and Saibil, H.R. Chaperonins. Biochem. J. 333 (1998) 233–242. [PMID: 9657960]
[EC 3.6.4.9 created 2000]
 
 


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