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Sep. 10, 2014:
A total of 174 experimentally verified S-nitrosylation sites on 94 S-nitrosylated proteins from individualized human colorectal cancer tissues using a label-free quantitation strategy.

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Protein Name: 60 kDa heat shock protein, mitochondrial

UniprotKB/SwissProt ID: P31081 (P31081)

Gene Name: HSPD1

Organism: Bos taurus (Bovine)

Function: Chaperonin implicated in mitochondrial protein import and macromolecular assembly. Together with Hsp10, facilitates the correct folding of imported proteins. May also prevent misfolding and promote the refolding and proper assembly of unfolded polypeptides generated under stress conditions in the mitochondrial matrix. The functional units of these chaperonins consist of heptameric rings of the large subunit Hsp60, which function as a back-to-back double ring. In a cyclic reaction, Hsp60 ring complexes bind one unfolded substrate protein per ring, followed by the binding of ATP and association with 2 heptameric rings of the co-chaperonin Hsp10. This leads to sequestration of the substrate protein in the inner cavity of Hsp60 where, for a certain period of time, it can fold undisturbed by other cell components. Synchronous hydrolysis of ATP in all Hsp60 subunits results in the dissociation of the chaperonin rings and the release of ADP and the folded substrate protein

Other Modifications: View all modification sites in dbPTM

Protein Subcellular Localization: Mitochondrion matrix

Graphical Visualization of S-nitrosylation Sites:
InterPro ID Domain Name
IPR001844 Cpn60/GroEL
IPR002423 Cpn60/GroEL/TCP-1
IPR027409 GroEL-like_apical_dom_sf
IPR027413 GROEL-like_equatorial_sf
IPR027410 TCP-1-like_intermed_sf

The S-nitrosylation sites of P31081

No. Position S-nitrosylated Peptide Secondary Structure of S-nitrosylated Peptide Solvent Accessibility of nitrosylated Site PubMed ID
1 237 YFINTSKGQK C EFQDAYVLLS   
2 442 VEEGIVLGGD C ALLRCIPALE   
3 447 VLGGDCALLR C IPALESITPA