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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: Calsequestrin-2

UniprotKB/SwissProt ID: CASQ2_MOUSE (O09161)

Gene Name: Casq2

Organism: Mus musculus (Mouse).

Function: Calsequestrin is a high-capacity, moderate affinity, calcium-binding protein and thus acts as an internal calcium store in muscle. The release of calcium bound to calsequestrin through a calcium release channel triggers muscle contraction. The skeletal muscle isoform (CASQ1) binds around 80 Ca(2+) ions, while the cardiac isoform (CASQ2) binds approximately 60 Ca(2+) ions (By similarity).

Other Modifications: View all modification sites in dbPTM

Protein Subcellular Localization: Sarcoplasmic reticulum lumen. Note=This isoform of calsequestrin occurs in the sarcoplasmic reticulum's terminal cisternae luminal spaces of cardiac and slow skeletal muscle cells.

Graphical Visualization of S-nitrosylation Sites:
Overview of Protein S-nitrosylation Sites with Functional and Structural Information
InterPro ID Domain
IPR001393
IPR012335
IPR012336

The S-nitrosylation sites of CASQ2_MOUSE

No. Position S-nitrosylated Peptide Secondary Structure of S-nitrosylated Peptide Solvent Accessibility of nitrosylated Site Substrate Motifs PubMed ID Experiment
153KQMLKRYDLL C LYYHEPVSSD HHHHHCCCCE E EEEECCCCCH 2.74%MC0721278135in vitro
253KQMLKRYDLL C LYYHEPVSSD HHHHHCCCCE E EEEECCCCCH 2.74%MC0722865876in vivo