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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: Thioredoxin

UniprotKB/SwissProt ID: O97508 (O97508)

Gene Name: TXN

Organism: Equus caballus (Horse)

Function: Participates in various redox reactions through the reversible oxidation of its active center dithiol to a disulfide and catalyzes dithiol-disulfide exchange reactions (By similarity). Plays a role in the reversible S-nitrosylation of cysteine residues in target proteins, and thereby contributes to the response to intracellular nitric oxide. Nitrosylates the active site Cys of CASP3 in response to nitric oxide (NO), and thereby inhibits caspase-3 activity. Induces the FOS/JUN AP-1 DNA binding activity in ionizing radiation (IR) cells through its oxidation/reduction status and stimulates AP-1 transcriptional activity (By similarity)

Other Modifications: View all modification sites in dbPTM

Protein Subcellular Localization: Nucleus. Cytoplasm. Secreted

Graphical Visualization of S-nitrosylation Sites:
InterPro ID Domain Name
IPR005746 Thioredoxin
IPR036249 Thioredoxin-like_sf
IPR017937 Thioredoxin_CS
IPR013766 Thioredoxin_domain

The S-nitrosylation sites of O97508

No. Position S-nitrosylated Peptide Secondary Structure of S-nitrosylated Peptide Solvent Accessibility of nitrosylated Site PubMed ID
1 62 VVFLEVDVDD C QDVAAECEVK  CCCHHCCHHH H HHHHHHCCCC  3.01%
2 69 VDDCQDVAAE C EVKCMPTFQF  CCCHHCCHHH H HHHHHHCCCC  6.63%
3 73 QDVAAECEVK C MPTFQFFKKG  CCCHHCCHHH H HHHHHHCCCC  4.82%