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1v34

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{{STRUCTURE_1v34| PDB=1v34 | SCENE= }}
{{STRUCTURE_1v34| PDB=1v34 | SCENE= }}
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'''Crystal structure of Pyrococcus horikoshii DNA primase-UTP complex'''
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===Crystal structure of Pyrococcus horikoshii DNA primase-UTP complex===
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==Overview==
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BACKGROUND: In chromosomal DNA replication, DNA primase initiates the synthesis of a dinucleotide on a single-stranded template DNA, and elongates it to form a primer RNA for the replicative DNA polymerase. Although the apo-structure of an archaeal primase has been reported, the mechanism of primer synthesis by the eukaryotic-type primase still remains to be elucidated. RESULTS: In this study, we present the crystal structure of the eukaryotic-type DNA primase from the hyperthermophilic archaeon (Pyrococcus horikoshii) with the uridine 5'-triphosphate (UTP). In the present primase-UTP complex, the primase binds the triphosphate moiety of the UTP at the active site, which includes Asp95, Asp97, and Asp280, the essential residues for the nucleotidyl transfer reaction. CONCLUSION: The nucleotide binding geometry in this complex explains the previous biochemical analyses of the eukaryotic primase. Based on the complex structure, we constructed a model between the DNA primase and a primer/template DNA for the primer synthesis. This model facilitates the comprehension of the reported features of DNA primase.
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(as it appears on PubMed at http://www.pubmed.gov), where 14750947 is the PubMed ID number.
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{{ABSTRACT_PUBMED_14750947}}
==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 Mon Jul 28 15:26:30 2008''

Revision as of 12:26, 28 July 2008

Template:STRUCTURE 1v34

Crystal structure of Pyrococcus horikoshii DNA primase-UTP complex

Template:ABSTRACT PUBMED 14750947

About this Structure

1V34 is a Single protein structure of sequence from Pyrococcus horikoshii. Full crystallographic information is available from OCA.

Reference

Crystal structure of the Pyrococcus horikoshii DNA primase-UTP complex: implications for the mechanism of primer synthesis., Ito N, Nureki O, Shirouzu M, Yokoyama S, Hanaoka F, Genes Cells. 2003 Dec;8(12):913-23. PMID:14750947

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