Thioredoxin

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Basic Information
Short Name Trx, TRDX, TXN
UNP ID P10599
Organism Homo sapiens
Cys Site Cys32, Cys35
Family/Domain Thioredoxin family
Known Ligand Ligand list
Function Type Redox protein

Summary

Protein Function

Thioredoxin is a class of small redox proteins known to be present in all organisms. It plays a role in many important biological processes, including redox signaling. In humans, thioredoxins are encoded by TXN and TXN2 genes. Loss-of-function mutation of either of the two human thioredoxin genes is lethal at the four-cell stage of the developing embryo. Although not entirely understood, thioredoxin plays a central role in humans and is increasingly linked to medicine through their response to reactive oxygen species (ROS). (From Wikipedia)

Cys Function & Property

Cys32 and Cys35 are quite close to the active site of Trx, which could form disulfide bond or free state under differrent situtation.

  • Hydrophobic property:
526-hydro.png
  • SASA:
Cys32: 7.575 A^2
Cys35: 4.701 A^2

Protein Sequence

MVKQIESKTA FQEALDAAGD KLVVVDFSAT WCGPCKMIKP FFHSLSEKYS
NVIFLEVDVD DCQDVASECE VKCMPTFQFF KKGQKVGEFS GANKEKLEAT
INELV

Structural Information

  • Known structures with covalent ligands:
Unknown
  • Protein structure:
526.png

Related Pathway

Experimental Evidence

MS/MS spectra, Tryptic Digest, Cys-directed Mutation

Reference

  1. Bradshaw T D, Matthews C S, Cookson J, et al. Elucidation of thioredoxin as a molecular target for antitumor quinols[J]. Cancer research, 2005, 65(9): 3911-3919. 23441730
    15867391
  2. Ji W, Yang M, Praggastis A, et al. Carbamoylating activity associated with the activation of the antitumor agent laromustine inhibits angiogenesis by inducing ASK1-dependent endothelial cell death[J]. PloS one, 2014, 9(7): e103224. 25068797