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From Proteopedia
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== Function == | == Function == | ||
[[http://www.uniprot.org/uniprot/TPA1_YEAST TPA1_YEAST]] Part of a messenger ribonucleoprotein (mRNP) complex at the 3'-UTR of mRNAs. It associates specifically with components of the translation termination complex and is involved in both translation termination and in regulation of normal mRNA decay through translation termination-coupled poly(A) shortening.<ref>PMID:16809762</ref> | [[http://www.uniprot.org/uniprot/TPA1_YEAST TPA1_YEAST]] Part of a messenger ribonucleoprotein (mRNP) complex at the 3'-UTR of mRNAs. It associates specifically with components of the translation termination complex and is involved in both translation termination and in regulation of normal mRNA decay through translation termination-coupled poly(A) shortening.<ref>PMID:16809762</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Post-translational ribosomal protein hydroxylation is catalyzed by 2-oxoglutarate (2OG) and ferrous iron dependent oxygenases, and occurs in prokaryotes and eukaryotes. OGFOD1 catalyzes trans-3 prolyl hydroxylation at Pro62 of the small ribosomal subunit protein uS12 (RPS23) and is conserved from yeasts to humans. We describe crystal structures of the human uS12 prolyl 3-hydroxylase (OGFOD1) and its homolog from Saccharomyces cerevisiae (Tpa1p): OGFOD1 in complex with the broad-spectrum 2OG oxygenase inhibitors; N-oxalylglycine (NOG) and pyridine-2,4-dicarboxylate (2,4-PDCA) to 2.1 and 2.6 A resolution, respectively; and Tpa1p in complex with NOG, 2,4-PDCA, and 1-chloro-4-hydroxyisoquinoline-3-carbonylglycine (a more selective prolyl hydroxylase inhibitor) to 2.8, 1.9, and 1.9 A resolution, respectively. Comparison of uS12 hydroxylase structures with those of other prolyl hydroxylases, including the human hypoxia-inducible factor (HIF) prolyl hydroxylases (PHDs), reveals differences between the prolyl 3- and prolyl 4-hydroxylase active sites, which can be exploited for developing selective inhibitors of the different subfamilies. | ||
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| + | Structure of the Ribosomal Oxygenase OGFOD1 Provides Insights into the Regio- and Stereoselectivity of Prolyl Hydroxylases.,Horita S, Scotti JS, Thinnes C, Mottaghi-Taromsari YS, Thalhammer A, Ge W, Aik W, Loenarz C, Schofield CJ, McDonough MA Structure. 2015 Feb 19. pii: S0969-2126(15)00038-6. doi:, 10.1016/j.str.2015.01.014. PMID:25728928<ref>PMID:25728928</ref> | ||
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| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
== References == | == References == | ||
<references/> | <references/> | ||
Revision as of 12:06, 18 March 2015
Crystal structure of Tpa1p from Saccharomyces cerevisiae, termination and polyadenylation protein 1, in complex with N-[(1-chloro-4-hydroxyisoquinolin-3-yl)carbonyl]glycine (IOX3/UN9)
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