1vdx

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{{STRUCTURE_1vdx| PDB=1vdx | SCENE= }}
{{STRUCTURE_1vdx| PDB=1vdx | SCENE= }}
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'''Crystal Structure of a Pyrococcus horikoshii protein with similarities to 2'5' RNA-ligase'''
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===Crystal Structure of a Pyrococcus horikoshii protein with similarities to 2'5' RNA-ligase===
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==Overview==
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Cyclic phosphodiesterase and 2'-5' RNA ligase are members of a superfamily of proteins which share structural similarities even though their homology may be very low. A putative 2'-5' RNA ligase from Pyrococcus horikoshii has been crystallized and its X-ray crystallographic structure determined to 2.4 A. The protein crystallized in the orthorhombic space group P2(1)2(1)2(1), with unit-cell parameters a = 44.07, b = 45.47, c = 93.17 A and one protein monomer in the asymmetric unit. The molecular-replacement probe was a 2'-5' RNA ligase from Thermus thermophilus which shares 30% sequence identity. The P. horikoshii RNA ligase has some structural features that have more in common with a cyclic phosphodiesterase from Arabidopsis thaliana with which it has no significant homology, yet an examination of the electrostatic surface potential clearly defines its relationship to the T. thermophilus RNA ligase. However, the size of the active-site cleft is smaller and less positively charged than that of the T. thermophilus homologue, suggesting that the actual substrate may be smaller than that previously postulated for the latter.
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(as it appears on PubMed at http://www.pubmed.gov), where 16131753 is the PubMed ID number.
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{{ABSTRACT_PUBMED_16131753}}
==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 12:25:26 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 09:08:57 2008''

Revision as of 06:09, 29 July 2008

Image:1vdx.png

Template:STRUCTURE 1vdx

Crystal Structure of a Pyrococcus horikoshii protein with similarities to 2'5' RNA-ligase

Template:ABSTRACT PUBMED 16131753

About this Structure

1VDX is a Single protein structure of sequence from Pyrococcus horikoshii. Full crystallographic information is available from OCA.

Reference

Structure of a putative 2'-5' RNA ligase from Pyrococcus horikoshii., Rehse PH, Tahirov TH, Acta Crystallogr D Biol Crystallogr. 2005 Sep;61(Pt 9):1207-12. Epub 2005, Aug 16. PMID:16131753

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