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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: THIO_MOUSE (P10639)

Gene Name: Txn

Synonyms: Txn1

Organism: Mus musculus (Mouse).

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). ADF augments the expression of the interleukin-2 receptor TAC (IL2R/P55).

Other Modifications: View all modification sites in dbPTM

Protein Subcellular Localization: Nucleus (By similarity). Cytoplasm (By similarity). Secreted (By similarity). Note=Secreted by a leaderless secretory pathway. Predominantly in the cytoplasm in non irradiated cells. Radiation induces translocation of TRX from the cytoplasm to the nucleu

Graphical Visualization of S-nitrosylation Sites:
Overview of Protein S-nitrosylation Sites with Functional and Structural Information
InterPro ID Domain
IPR006662
IPR012335
IPR012336
IPR013766
IPR015467

The S-nitrosylation sites of THIO_MOUSE

No. Position S-nitrosylated Peptide Secondary Structure of S-nitrosylated Peptide Solvent Accessibility of nitrosylated Site Substrate Motifs PubMed ID Experiment
173QDVAADCEVK C MPTFQFYKKG HHHHHHCCCC C CEEEEEEECC 4.82%MC0320925432in vivo
273QDVAADCEVK C MPTFQFYKKG HHHHHHCCCC C CEEEEEEECC 4.82%MC0321278135in vitro