1wfx

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{{STRUCTURE_1wfx| PDB=1wfx | SCENE= }}
{{STRUCTURE_1wfx| PDB=1wfx | SCENE= }}
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'''Crystal Structure of APE0204 from Aeropyrum pernix'''
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===Crystal Structure of APE0204 from Aeropyrum pernix===
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==Overview==
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In the final step of tRNA splicing, the 2'-phosphotransferase catalyzes the transfer of the extra 2'-phosphate from the precursor-ligated tRNA to NAD. We have determined the crystal structure of the 2'-phosphotransferase protein from Aeropyrum pernix K1 at 2.8 Angstroms resolution. The structure of the 2'-phosphotransferase contains two globular domains (N and C-domains), which form a cleft in the center. The N-domain has the winged helix motif, a subfamily of the helix-turn-helix family, which is shared by many DNA-binding proteins. The C-domain of the 2'-phosphotransferase superimposes well on the NAD-binding fold of bacterial (diphtheria) toxins, which catalyze the transfer of ADP ribose from NAD to target proteins, indicating that the mode of NAD binding by the 2'-phosphotransferase could be similar to that of the bacterial toxins. The conserved basic residues are assembled at the periphery of the cleft and could participate in the enzyme contact with the sugar-phosphate backbones of tRNA. The modes by which the two functional domains recognize the two different substrates are clarified by the present crystal structure of the 2'-phosphotransferase.
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(as it appears on PubMed at http://www.pubmed.gov), where 15811369 is the PubMed ID number.
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{{ABSTRACT_PUBMED_15811369}}
==About this Structure==
==About this Structure==
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[[Category: Structural genomic]]
[[Category: Structural genomic]]
[[Category: Trna splicing]]
[[Category: Trna splicing]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 13:36:19 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 13:51:39 2008''

Revision as of 10:51, 29 July 2008

Image:1wfx.png

Template:STRUCTURE 1wfx

Crystal Structure of APE0204 from Aeropyrum pernix

Template:ABSTRACT PUBMED 15811369

About this Structure

1WFX is a Single protein structure of sequence from Aeropyrum pernix. Full crystallographic information is available from OCA.

Reference

Crystal structure of the RNA 2'-phosphotransferase from Aeropyrum pernix K1., Kato-Murayama M, Bessho Y, Shirouzu M, Yokoyama S, J Mol Biol. 2005 Apr 29;348(2):295-305. PMID:15811369

Page seeded by OCA on Tue Jul 29 13:51:39 2008

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