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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: Alpha-2-macroglobulin

UniprotKB/SwissProt ID: A2M_MOUSE (Q61838)

Gene Name: A2m

Synonyms: Pzp

Organism: Mus musculus (Mouse).

Function: Is able to inhibit all four classes of proteinases by a unique 'trapping' mechanism. This protein has a peptide stretch, called the 'bait region' which contains specific cleavage sites for different proteinases. When a proteinase cleaves the bait region, a conformational change is induced in the protein which traps the proteinase. The entrapped enzyme remains active against low molecular weight substrates (activity against high molecular weight substrates is greatly reduced). Following cleavage in the bait region a thioester bond is hydrolyzed and mediates the covalent binding of the protein to the proteinase.

Other Modifications: View all modification sites in dbPTM

Protein Subcellular Localization: Secreted.

Graphical Visualization of S-nitrosylation Sites:
Overview of Protein S-nitrosylation Sites with Functional and Structural Information
InterPro ID Domain
IPR001599
IPR002890
IPR008930
IPR009048
IPR011625
IPR011626

The S-nitrosylation sites of A2M_MOUSE

No. Position S-nitrosylated Peptide Secondary Structure of S-nitrosylated Peptide Solvent Accessibility of nitrosylated Site Substrate Motifs PubMed ID Experiment
1594LKVKAAPLSL C ALTAVDQSVL EEEEECCCCE E EEEEEEEEEE 2.34%MC0122588120-