1ulh

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{{STRUCTURE_1ulh| PDB=1ulh | SCENE= }}
{{STRUCTURE_1ulh| PDB=1ulh | SCENE= }}
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'''A short peptide insertion crucial for angiostatic activity of human tryptophanyl-tRNA synthetase'''
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===A short peptide insertion crucial for angiostatic activity of human tryptophanyl-tRNA synthetase===
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==Overview==
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Human tryptophanyl-tRNA synthetase (TrpRS) is secreted into the extracellular region of vascular endothelial cells. The splice variant form (mini TrpRS) functions in vascular endothelial cell apoptosis as an angiostatic cytokine. In contrast, the closely related human tyrosyl-tRNA synthetase (TyrRS) functions as an angiogenic cytokine in its truncated form (mini TyrRS). Here, we determined the crystal structure of human mini TrpRS at a resolution of 2.3 A and compared the structure with those of prokaryotic TrpRS and human mini TyrRS. Deletion of the tRNA anticodon-binding (TAB) domain insertion, consisting of eight residues in the human TrpRS, abolished the enzyme's apoptotic activity for endothelial cells, whereas its translational catalysis and cell-binding activities remained unchanged. Thus, we have identified the inserted peptide motif that activates the angiostatic signaling.
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(as it appears on PubMed at http://www.pubmed.gov), where 14730354 is the PubMed ID number.
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{{ABSTRACT_PUBMED_14730354}}
==About this Structure==
==About this Structure==
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[[Category: Rsgi]]
[[Category: Rsgi]]
[[Category: Structural genomic]]
[[Category: Structural genomic]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 11:23:29 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 17:08:22 2008''

Revision as of 14:08, 27 July 2008

Image:1ulh.png

Template:STRUCTURE 1ulh

A short peptide insertion crucial for angiostatic activity of human tryptophanyl-tRNA synthetase

Template:ABSTRACT PUBMED 14730354

About this Structure

1ULH is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.

Reference

A short peptide insertion crucial for angiostatic activity of human tryptophanyl-tRNA synthetase., Kise Y, Lee SW, Park SG, Fukai S, Sengoku T, Ishii R, Yokoyama S, Kim S, Nureki O, Nat Struct Mol Biol. 2004 Feb;11(2):149-56. Epub 2004 Jan 11. PMID:14730354

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