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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: Calreticulin

UniprotKB/SwissProt ID: P18418 (P18418)

Gene Name: Calr

Organism: Rattus norvegicus (Rat)

Function: Calcium-binding chaperone that promotes folding, oligomeric assembly and quality control in the endoplasmic reticulum (ER) via the calreticulin/calnexin cycle. This lectin interacts transiently with almost all of the monoglucosylated glycoproteins that are synthesized in the ER. Interacts with the DNA-binding domain of NR3C1 and mediates its nuclear export (By similarity). Involved in maternal gene expression regulation. May participate in oocyte maturation via the regulation of calcium homeostasis (By similarity). Present in the cortical granules of non-activated oocytes, is exocytosed during the cortical reaction in response to oocyte activation and might participate in the block to polyspermy (By similarity)

Other Modifications: View all modification sites in dbPTM

Protein Subcellular Localization: Endoplasmic reticulum lumen. Cytoplasm, cytosol. Secreted, extracellular space, extracellular matrix. Cell surface. Sarcoplasmic reticulum lumen. Cytoplasmic vesicle, secretory vesicle, Cortical granule. Cytolytic granule

Graphical Visualization of S-nitrosylation Sites:
InterPro ID Domain Name
IPR001580 Calret/calnex
IPR018124 Calret/calnex_CS
IPR009169 Calreticulin
IPR009033 Calreticulin/calnexin_P_dom_sf
IPR013320 ConA-like_dom_sf

The S-nitrosylation sites of P18418

No. Position S-nitrosylated Peptide Secondary Structure of S-nitrosylated Peptide Solvent Accessibility of nitrosylated Site PubMed ID
1 105 FTVKHEQNID C GGGYVKLFPG   
2 137 EYNIMFGPDI C GPGTKKVHVI