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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: Bifunctional glutamate/proline--tRNA ligase

UniprotKB/SwissProt ID: SYEP_HUMAN (P07814)

Gene Name: EPRS

Synonyms: GLNS, PARS, QARS, QPRS

Organism: Homo sapiens (Human).

Function: Catalyzes the attachment of the cognate amino acid to the corresponding tRNA in a two-step reaction: the amino acid is first activated by ATP to form a covalent intermediate with AMP and is then transferred to the acceptor end of the cognate tRNA. Component of the GAIT (gamma interferon-activated inhibitor of translation) complex which mediates interferon-gamma-induced transcript-selective translation inhibition in inflammation processes. Upon interferon-gamma activation and subsequent phosphorylation dissociates from the multisynthetase complex and assembles into the GAIT complex which binds to stem loop- containing GAIT elements in the 3'-UTR of diverse inflammatory mRNAs (such as ceruplasmin) and suppresses their translation.

Other Modifications: View all modification sites in dbPTM

Protein Subcellular Localization: Cytoplasm (Probable).

PDB :
( If your security settings prevent Jmol from running, please register http://140.138.144.145/ as a safe location in your Java settings. )

Network with metabolic pathway:
Kegg map ID Pathway Link
map00860Porphyrin and chlorophyll metabolism
map00970Aminoacyl-tRNA biosynthesis
Graphical Visualization of S-nitrosylation Sites:
Overview of Protein S-nitrosylation Sites with Functional and Structural Information
InterPro ID Domain
IPR000738
IPR000924
IPR001412
IPR002314
IPR002316
IPR004046
IPR004154
IPR004499
IPR004526
IPR006195
IPR009068
IPR011035

3D Structure Databases:
3D structure databases
EntryMethodResolution (A)ChainPositionsView
1FYJ NMR - A749-805Link
4HVC X-ray 2.00 A A/B1003-1512Link
4K86 X-ray 2.40 A A1000-1512Link
4K87 X-ray 2.30 A A1000-1512Link
4K88 X-ray 2.62 A A1000-1512Link

The S-nitrosylation sites of SYEP_HUMAN

No. Position S-nitrosylated Peptide Secondary Structure of S-nitrosylated Peptide Solvent Accessibility of nitrosylated Site Substrate Motifs PubMed ID Experiment
192LEFSATKLSS C DSFTSTINEL CCHHHHHHHH H HCCCCCHHHH 4.58%HC0719483679in vivo
2105FTSTINELNH C LSLRTYLVGN CCCCHHHHHC C HHHHHHHHCC 2.41%HC0219483679in vivo
3856PKAKINEAVE C LLSLKAQYKE HHHCCCCHHH H HHHHHHHHHH 3.58%HC0122178444-
4856PKAKINEAVE C LLSLKAQYKE HHHCCCCHHH H HHHHHHHHHH 3.58%HC0119483679in vivo
51377LEVGPRDMKS C QFVAVRRDTG CCCEEEEEEC C CHHHHHHHHH 2.80%HC032212679in vitro