1g71: Difference between revisions
New page: left|200px<br /><applet load="1g71" size="450" color="white" frame="true" align="right" spinBox="true" caption="1g71, resolution 2.3Å" /> '''CRYSTAL STRUCTURE OF ... |
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[[Image:1g71.gif|left|200px]]<br /><applet load="1g71" size=" | [[Image:1g71.gif|left|200px]]<br /><applet load="1g71" size="350" color="white" frame="true" align="right" spinBox="true" | ||
caption="1g71, resolution 2.3Å" /> | caption="1g71, resolution 2.3Å" /> | ||
'''CRYSTAL STRUCTURE OF PYROCOCCUS FURIOSUS DNA PRIMASE'''<br /> | '''CRYSTAL STRUCTURE OF PYROCOCCUS FURIOSUS DNA PRIMASE'''<br /> | ||
==Overview== | ==Overview== | ||
Primases are essential components of the DNA replication apparatus in | Primases are essential components of the DNA replication apparatus in every organism. They catalyze the synthesis of oligoribonucleotides on single-stranded DNA, which subsequently serve as primers for the replicative DNA polymerases. In contrast to bacterial primases, the archaeal enzymes are closely related to their eukaryotic counterparts. We have solved the crystal structure of the catalytic primase subunit from the hyperthermophilic archaeon Pyrococcus furiosus at 2.3 A resolution by multiwavelength anomalous dispersion methods. The structure shows a two-domain arrangement with a novel zinc knuckle motif located in the primase (prim) domain. In this first structure of a complete protein of the archaeal/eukaryotic primase family, the arrangement of the catalytically active residues resembles the active sites of various DNA polymerases that are unrelated in fold. | ||
==About this Structure== | ==About this Structure== | ||
1G71 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Pyrococcus_furiosus Pyrococcus furiosus] with ZN, CL and SO4 as [http://en.wikipedia.org/wiki/ligands ligands]. Full crystallographic information is available from [http:// | 1G71 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Pyrococcus_furiosus Pyrococcus furiosus] with <scene name='pdbligand=ZN:'>ZN</scene>, <scene name='pdbligand=CL:'>CL</scene> and <scene name='pdbligand=SO4:'>SO4</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1G71 OCA]. | ||
==Reference== | ==Reference== | ||
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[[Category: Pyrococcus furiosus]] | [[Category: Pyrococcus furiosus]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
[[Category: Augustin, M | [[Category: Augustin, M A.]] | ||
[[Category: Huber, R.]] | [[Category: Huber, R.]] | ||
[[Category: Kaiser, J | [[Category: Kaiser, J T.]] | ||
[[Category: CL]] | [[Category: CL]] | ||
[[Category: SO4]] | [[Category: SO4]] | ||
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[[Category: zinc-knuckle]] | [[Category: zinc-knuckle]] | ||
''Page seeded by [http:// | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 12:46:52 2008'' | ||
Revision as of 13:46, 21 February 2008
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CRYSTAL STRUCTURE OF PYROCOCCUS FURIOSUS DNA PRIMASE
OverviewOverview
Primases are essential components of the DNA replication apparatus in every organism. They catalyze the synthesis of oligoribonucleotides on single-stranded DNA, which subsequently serve as primers for the replicative DNA polymerases. In contrast to bacterial primases, the archaeal enzymes are closely related to their eukaryotic counterparts. We have solved the crystal structure of the catalytic primase subunit from the hyperthermophilic archaeon Pyrococcus furiosus at 2.3 A resolution by multiwavelength anomalous dispersion methods. The structure shows a two-domain arrangement with a novel zinc knuckle motif located in the primase (prim) domain. In this first structure of a complete protein of the archaeal/eukaryotic primase family, the arrangement of the catalytically active residues resembles the active sites of various DNA polymerases that are unrelated in fold.
About this StructureAbout this Structure
1G71 is a Single protein structure of sequence from Pyrococcus furiosus with , and as ligands. Full crystallographic information is available from OCA.
ReferenceReference
Crystal structure of a DNA-dependent RNA polymerase (DNA primase)., Augustin MA, Huber R, Kaiser JT, Nat Struct Biol. 2001 Jan;8(1):57-61. PMID:11135672
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