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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: Unconventional prefoldin RPB5 interactor 1

UniprotKB/SwissProt ID: O94763 (O94763)

Gene Name: URI1

Organism: Homo sapiens (Human)

Function: Involved in gene transcription regulation. Acts as a transcriptional repressor in concert with the corepressor UXT to regulate androgen receptor (AR) transcription. May act as a tumor suppressor to repress AR-mediated gene transcription and to inhibit anchorage-independent growth in prostate cancer cells. Required for cell survival in ovarian cancer cells. Together with UXT, associates with chromatin to the NKX3-1 promoter region. Antagonizes transcriptional modulation via hepatitis B virus X protein Plays a central role in maintaining S6K1 signaling and BAD phosphorylation under normal growth conditions thereby protecting cells from potential deleterious effects of sustained S6K1 signaling. The URI1-PPP1CC complex acts as a central component of a negative feedback mechanism that counteracts excessive S6K1 survival signaling to BAD in response to growth factors. Mediates inhibition of PPP1CC phosphatase activity in mitochondria. Coordinates the regulation of nutrient-sensitive gene expression availability in a mTOR-dependent manner. Seems to be a scaffolding protein able to assemble a prefoldin-like complex that contains PFDs and proteins with roles in transcription and ubiquitination

Other Modifications: View all modification sites in dbPTM

Protein Subcellular Localization: Nucleus. Cytoplasm. Mitochondrion. Cell projection, dendrite

Graphical Visualization of S-nitrosylation Sites:
InterPro ID Domain Name
IPR009053 Prefoldin
IPR004127 Prefoldin_subunit_alpha
IPR052255 RNA_pol_II_subunit5-mediator

The S-nitrosylation sites of O94763

No. Position S-nitrosylated Peptide Secondary Structure of S-nitrosylated Peptide Solvent Accessibility of nitrosylated Site PubMed ID
1 420 LKSRSRENSV C SDTSESSAAE   
2 448 LRSISCEEAT C SDTSESILEE