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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: AT-rich interactive domain-containing protein 4B

UniprotKB/SwissProt ID: Q4LE39 (Q4LE39)

Gene Name: ARID4B

Organism: Homo sapiens (Human)

Function: Acts as a transcriptional repressor (PubMed:12724404). May function in the assembly and/or enzymatic activity of the Sin3A corepressor complex or in mediating interactions between the complex and other regulatory complexes (PubMed:12724404). Plays a role in the regulation of epigenetic modifications at the PWS/AS imprinting center near the SNRPN promoter, where it might function as part of a complex with RB1 and ARID4A. Involved in spermatogenesis, together with ARID4A, where it functions as a transcriptional coactivator for AR (androgen receptor) and enhances expression of genes required for sperm maturation. Regulates expression of the tight junction protein CLDN3 in the testis, which is important for integrity of the blood-testis barrier. Plays a role in myeloid homeostasis where it regulates the histone methylation state of bone marrow cells and expression of various genes involved in hematopoiesis. May function as a leukemia suppressor (By similarity)

Other Modifications: View all modification sites in dbPTM

Protein Subcellular Localization: Nucleus. Cytoplasm

Graphical Visualization of S-nitrosylation Sites:
InterPro ID Domain Name
IPR051232 ARID/SWI1_ChromRemod
IPR012603 ARID4A/B_PWWP
IPR028853 ARID4B_ARID/BRIGHT
IPR001606 ARID_dom
IPR036431 ARID_dom_sf
IPR016197 Chromo-like_dom_sf
IPR002999 Tudor
IPR025995 Tudor-knot
IPR047476 Tudor_ARID4B_rpt1
IPR047474 Tudor_ARID4B_rpt2

The S-nitrosylation sites of Q4LE39

No. Position S-nitrosylated Peptide Secondary Structure of S-nitrosylated Peptide Solvent Accessibility of nitrosylated Site PubMed ID
1 833 GKRRYCNTEE C LKTGSPGKKE