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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: Beta-hexosaminidase subunit alpha

UniprotKB/SwissProt ID: P06865 (P06865)

Gene Name: HEXA

Organism: Homo sapiens (Human)

Function: Hydrolyzes the non-reducing end N-acetyl-D-hexosamine and/or sulfated N-acetyl-D-hexosamine of glycoconjugates, such as the oligosaccharide moieties from proteins and neutral glycolipids, or from certain mucopolysaccharides (PubMed:11707436, PubMed:8123671, PubMed:8672428, PubMed:9694901). The isozyme S is as active as the isozyme A on the anionic bis-sulfated glycans, the chondroitin-6-sulfate trisaccharide (C6S-3), and the dermatan sulfate pentasaccharide, and the sulfated glycosphingolipid SM2 (PubMed:11707436). The isozyme B does not hydrolyze each of these substrates, however hydrolyzes efficiently neutral oligosaccharide (PubMed:11707436). Only the isozyme A is responsible for the degradation of GM2 gangliosides in the presence of GM2A (PubMed:8123671, PubMed:8672428, PubMed:9694901)

Other Modifications: View all modification sites in dbPTM

Protein Subcellular Localization: Lysosome

Graphical Visualization of S-nitrosylation Sites:
InterPro ID Domain Name
IPR025705 Beta_hexosaminidase_sua/sub
IPR015883 Glyco_hydro_20_cat
IPR017853 Glycoside_hydrolase_SF
IPR029018 Hex-like_dom2
IPR029019 HEX_eukaryotic_N

The S-nitrosylation sites of P06865

No. Position S-nitrosylated Peptide Secondary Structure of S-nitrosylated Peptide Solvent Accessibility of nitrosylated Site PubMed ID
1 522 VQAQPLNVGF C EQEFEQT---