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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: Glutaminyl-peptide cyclotransferase

UniprotKB/SwissProt ID: Q16769 (Q16769)

Gene Name: QPCT

Organism: Homo sapiens (Human)

Function: Responsible for the biosynthesis of pyroglutamyl peptides. Has a bias against acidic and tryptophan residues adjacent to the N-terminal glutaminyl residue and a lack of importance of chain length after the second residue. Also catalyzes N-terminal pyroglutamate formation. In vitro, catalyzes pyroglutamate formation of N-terminally truncated form of APP amyloid-beta peptides [Glu-3]-amyloid-beta. May be involved in the N-terminal pyroglutamate formation of several amyloid-related plaque-forming peptides

Other Modifications: View all modification sites in dbPTM

Protein Subcellular Localization: Secreted

Graphical Visualization of S-nitrosylation Sites:
InterPro ID Domain Name
IPR037457 M28_QC
IPR007484 Peptidase_M28
IPR040234 QC/QCL