1r6u

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[[Image:1r6u.png|left|200px]]
 
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{{STRUCTURE_1r6u| PDB=1r6u | SCENE= }}
{{STRUCTURE_1r6u| PDB=1r6u | SCENE= }}
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===Crystal structure of an active fragment of human tryptophanyl-tRNA synthetase with cytokine activity===
===Crystal structure of an active fragment of human tryptophanyl-tRNA synthetase with cytokine activity===
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{{ABSTRACT_PUBMED_17637340}}
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{{ABSTRACT_PUBMED_17637340}}
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==Function==
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[[http://www.uniprot.org/uniprot/SYWC_HUMAN SYWC_HUMAN]] Isoform 1, isoform 2 and T1-TrpRS have aminoacylation activity while T2-TrpRS lacks it. Isoform 2, T1-TrpRS and T2-TrpRS possess angiostatic activity whereas isoform 1 lacks it. T2-TrpRS inhibits fluid shear stress-activated responses of endothelial cells. Regulates ERK, Akt, and eNOS activation pathways that are associated with angiogenesis, cytoskeletal reorganization and shear stress-responsive gene expression.<ref>PMID:11773626</ref> <ref>PMID:1373391</ref> <ref>PMID:11773625</ref> <ref>PMID:14630953</ref>
==About this Structure==
==About this Structure==
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==Reference==
==Reference==
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<ref group="xtra">PMID:017637340</ref><references group="xtra"/>
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<ref group="xtra">PMID:017637340</ref><references group="xtra"/><references/>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Tryptophan--tRNA ligase]]
[[Category: Tryptophan--tRNA ligase]]

Revision as of 06:33, 2 May 2013

Template:STRUCTURE 1r6u

Contents

Crystal structure of an active fragment of human tryptophanyl-tRNA synthetase with cytokine activity

Template:ABSTRACT PUBMED 17637340

Function

[SYWC_HUMAN] Isoform 1, isoform 2 and T1-TrpRS have aminoacylation activity while T2-TrpRS lacks it. Isoform 2, T1-TrpRS and T2-TrpRS possess angiostatic activity whereas isoform 1 lacks it. T2-TrpRS inhibits fluid shear stress-activated responses of endothelial cells. Regulates ERK, Akt, and eNOS activation pathways that are associated with angiogenesis, cytoskeletal reorganization and shear stress-responsive gene expression.[1] [2] [3] [4]

About this Structure

1r6u is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA.

See Also

Reference

  • Yang XL, Guo M, Kapoor M, Ewalt KL, Otero FJ, Skene RJ, McRee DE, Schimmel P. Functional and crystal structure analysis of active site adaptations of a potent anti-angiogenic human tRNA synthetase. Structure. 2007 Jul;15(7):793-805. PMID:17637340 doi:10.1016/j.str.2007.05.009
  1. ↑ Wakasugi K, Slike BM, Hood J, Otani A, Ewalt KL, Friedlander M, Cheresh DA, Schimmel P. A human aminoacyl-tRNA synthetase as a regulator of angiogenesis. Proc Natl Acad Sci U S A. 2002 Jan 8;99(1):173-7. Epub 2002 Jan 2. PMID:11773626 doi:10.1073/pnas.012602099
  2. ↑ Bange FC, Flohr T, Buwitt U, Bottger EC. An interferon-induced protein with release factor activity is a tryptophanyl-tRNA synthetase. FEBS Lett. 1992 Mar 30;300(2):162-6. PMID:1373391
  3. ↑ Otani A, Slike BM, Dorrell MI, Hood J, Kinder K, Ewalt KL, Cheresh D, Schimmel P, Friedlander M. A fragment of human TrpRS as a potent antagonist of ocular angiogenesis. Proc Natl Acad Sci U S A. 2002 Jan 8;99(1):178-83. Epub 2002 Jan 2. PMID:11773625 doi:10.1073/pnas.012601899
  4. ↑ Tzima E, Reader JS, Irani-Tehrani M, Ewalt KL, Schwartz MA, Schimmel P. Biologically active fragment of a human tRNA synthetase inhibits fluid shear stress-activated responses of endothelial cells. Proc Natl Acad Sci U S A. 2003 Dec 9;100(25):14903-7. Epub 2003 Nov 20. PMID:14630953 doi:10.1073/pnas.2436330100

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