1hrh

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[[Image:1hrh.png|left|200px]]
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==CRYSTAL STRUCTURE OF THE RIBONUCLEASE H DOMAIN OF HIV-1 REVERSE TRANSCRIPTASE==
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<StructureSection load='1hrh' size='340' side='right' caption='[[1hrh]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1hrh]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Human_immunodeficiency_virus_1 Human immunodeficiency virus 1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HRH OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1HRH FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1hrh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1hrh OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1hrh RCSB], [http://www.ebi.ac.uk/pdbsum/1hrh PDBsum]</span></td></tr>
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<table>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/hr/1hrh_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The crystal structure of the ribonuclease (RNase) H domain of HIV-1 reverse transcriptase (RT) has been determined at a resolution of 2.4 A and refined to a crystallographic R factor of 0.20. The protein folds into a five-stranded mixed beta sheet flanked by an asymmetric distribution of four alpha helices. Two divalent metal cations bind in the active site surrounded by a cluster of four conserved acidic amino acid residues. The overall structure is similar in most respects to the RNase H from Escherichia coli. Structural features characteristic of the retroviral protein suggest how it may interface with the DNA polymerase domain of p66 in the mature RT heterodimer. These features also offer insights into why the isolated RNase H domain is catalytically inactive but when combined in vitro with the isolated p51 domain of RT RNase H activity can be reconstituted. Surprisingly, the peptide bond cleaved by HIV-1 protease near the polymerase-RNase H junction of p66 is completely inaccessible to solvent in the structure reported here. This suggests that the homodimeric p66-p66 precursor of mature RT is asymmetric with one of the two RNase H domains at least partially unfolded.
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{{STRUCTURE_1hrh| PDB=1hrh | SCENE= }}
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Crystal structure of the ribonuclease H domain of HIV-1 reverse transcriptase.,Davies JF 2nd, Hostomska Z, Hostomsky Z, Jordan SR, Matthews DA Science. 1991 Apr 5;252(5002):88-95. PMID:1707186<ref>PMID:1707186</ref>
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===CRYSTAL STRUCTURE OF THE RIBONUCLEASE H DOMAIN OF HIV-1 REVERSE TRANSCRIPTASE===
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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{{ABSTRACT_PUBMED_1707186}}
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==About this Structure==
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[[1hrh]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Human_immunodeficiency_virus_1 Human immunodeficiency virus 1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HRH OCA].
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==See Also==
==See Also==
*[[Reverse transcriptase|Reverse transcriptase]]
*[[Reverse transcriptase|Reverse transcriptase]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:001707186</ref><references group="xtra"/>
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__TOC__
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</StructureSection>
[[Category: Human immunodeficiency virus 1]]
[[Category: Human immunodeficiency virus 1]]
[[Category: /II, J F.Davies.]]
[[Category: /II, J F.Davies.]]
[[Category: Matthews, D A.]]
[[Category: Matthews, D A.]]

Revision as of 11:40, 28 September 2014

CRYSTAL STRUCTURE OF THE RIBONUCLEASE H DOMAIN OF HIV-1 REVERSE TRANSCRIPTASE

1hrh, resolution 2.40Å

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