| Structural highlights
2yds is a 2 chain structure with sequence from "bacillus_perfringens"_veillon_and_zuber_1898 "bacillus perfringens" veillon and zuber 1898. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
| | Ligands: | , |
| Related: | 2cbi, 2yiy, 2vur, 2x0y, 2xpk, 2j62, 2wb5, 2jh2, 2j4o, 2v5c, 2cbj, 2ydq, 2v5d, 2ydr |
| Activity: | Protein O-GlcNAcase, with EC number 3.2.1.169 |
| Resources: | FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT |
Function
[OGA_CLOP1] Biological function unknown. Capable of hydrolyzing the glycosidic link of O-GlcNAcylated proteins. [TAB1_HUMAN] May be an important signaling intermediate between TGFB receptors and MAP3K7/TAK1. May play an important role in mammalian embryogenesis.[1]
Publication Abstract from PubMed
Protein O-GlcNAcylation is an essential reversible posttranslational modification in higher eukaryotes. O-GlcNAc addition and removal is catalyzed by O-GlcNAc transferase and O-GlcNAcase, respectively. We report the molecular details of the interaction of a bacterial O-GlcNAcase homolog with three different synthetic glycopeptides derived from characterized O-GlcNAc sites in the human proteome. Strikingly, the peptides bind a conserved O-GlcNAcase substrate binding groove with similar orientation and conformation. In addition to extensive contacts with the sugar, O-GlcNAcase recognizes the peptide backbone through hydrophobic interactions and intramolecular hydrogen bonds, while avoiding interactions with the glycopeptide side chains. These findings elucidate the molecular basis of O-GlcNAcase substrate specificity, explaining how a single enzyme achieves cycling of the complete O-GlcNAc proteome. In addition, this work will aid development of O-GlcNAcase inhibitors that target the peptide binding site.
Synergy of Peptide and Sugar in O-GlcNAcase Substrate Recognition.,Schimpl M, Borodkin VS, Gray LJ, van Aalten DM Chem Biol. 2012 Feb 24;19(2):173-8. PMID:22365600[2]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Conner SH, Kular G, Peggie M, Shepherd S, Schuttelkopf AW, Cohen P, Van Aalten DM. TAK1-binding protein 1 is a pseudophosphatase. Biochem J. 2006 Nov 1;399(3):427-34. PMID:16879102 doi:10.1042/BJ20061077
- ↑ Schimpl M, Borodkin VS, Gray LJ, van Aalten DM. Synergy of Peptide and Sugar in O-GlcNAcase Substrate Recognition. Chem Biol. 2012 Feb 24;19(2):173-8. PMID:22365600 doi:10.1016/j.chembiol.2012.01.011
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