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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: Methylosome protein 50

UniprotKB/SwissProt ID: MEP50_MOUSE (Q99J09)

Gene Name: Wdr77

Synonyms: Mep50

Organism: Mus musculus (Mouse).

Function: Non-catalytic component of the 20S PRMT5-containing methyltransferase complex, which modifies specific arginines to dimethylarginines in several spliceosomal Sm proteins and histones. This modification targets Sm proteins to the survival of motor neurons (SMN) complex for assembly into small nuclear ribonucleoprotein core particles. Might play a role in transcription regulation (By similarity). The 20S PRMT5-containing methyltransferase complex also methylates the Piwi proteins (PIWIL1, PIWIL2 and PIWIL4), methylation of Piwi proteins being required for the interaction with Tudor domain-containing proteins and subsequent localization to the meiotic nuage.

Other Modifications: View all modification sites in dbPTM

Protein Subcellular Localization: Nucleus (By similarity). Cytoplasm (By similarity).

Graphical Visualization of S-nitrosylation Sites:
Overview of Protein S-nitrosylation Sites with Functional and Structural Information
InterPro ID Domain
IPR001680
IPR011046
IPR015943

The S-nitrosylation sites of MEP50_MOUSE

No. Position S-nitrosylated Peptide Secondary Structure of S-nitrosylated Peptide Solvent Accessibility of nitrosylated Site Substrate Motifs PubMed ID Experiment
1172SYRAHAGQVT C VAASPHKDSV EEECCCCCEE E EEECCCCCEE 1.74%MC0221278135in vitro