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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: [Pyruvate dehydrogenase (acetyl-transferring)] kinase isozyme 2, mitochondrial

UniprotKB/SwissProt ID: PDK2_MOUSE (Q9JK42)

Gene Name: Pdk2

Organism: Mus musculus (Mouse).

Function: Serine/threonine kinase that plays a key role in the regulation of glucose and fatty acid metabolism and homeostasis via phosphorylation of the pyruvate dehydrogenase subunits PDHA1 and PDHA2. This inhibits pyruvate dehydrogenase activity, and thereby regulates metabolite flux through the tricarboxylic acid cycle, down-regulates aerobic respiration and inhibits the formation of acetyl-coenzyme A from pyruvate. Inhibition of pyruvate dehydrogenase decreases glucose utilization and increases fat metabolism. Mediates cellular responses to insulin. Plays an important role in maintaining normal blood glucose levels and in metabolic adaptation to nutrient availability. Via its regulation of pyruvate dehydrogenase activity, plays an important role in maintaining normal blood pH and in preventing the accumulation of ketone bodies under starvation. Plays a role in the regulation of cell proliferation and in resistance to apoptosis under oxidative stress. Plays a role in p53/TP53-mediated apoptosis.

Other Modifications: View all modification sites in dbPTM

Protein Subcellular Localization: Mitochondrion matrix.

Graphical Visualization of S-nitrosylation Sites:
Overview of Protein S-nitrosylation Sites with Functional and Structural Information
InterPro ID Domain
IPR003594
IPR004358
IPR005467

The S-nitrosylation sites of PDK2_MOUSE

No. Position S-nitrosylated Peptide Secondary Structure of S-nitrosylated Peptide Solvent Accessibility of nitrosylated Site Substrate Motifs PubMed ID Experiment
145QFLDFGSSNA C EKTSFTFLRQ HHHHCCCCCC C HHHHHHHHHH 6.88%MC0321278135in vitro
245QFLDFGSSNA C EKTSFTFLRQ HHHHCCCCCC C HHHHHHHHHH 6.88%MC0322865876in vivo
3195PKHIGSIDPN C SVSDVVKDAY CCCCCCCCCC C CHHHHHHHHH 5.31%MC0521278135in vitro
4392YQTIQEAGDW C VPSTEPKNTS CCCCCCCCCC C CCCCCCCCCC 3.72%MC0521278135in vitro
5392YQTIQEAGDW C VPSTEPKNTS CCCCCCCCCC C CCCCCCCCCC 3.72%MC0522865876in vivo