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| | <StructureSection load='1io2' size='340' side='right'caption='[[1io2]], [[Resolution|resolution]] 2.00Å' scene=''> | | <StructureSection load='1io2' size='340' side='right'caption='[[1io2]], [[Resolution|resolution]] 2.00Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[1io2]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Pyrococcus_kodakaraensis_(strain_kod1) Pyrococcus kodakaraensis (strain kod1)]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1IO2 OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=1IO2 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[1io2]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermococcus_kodakarensis_KOD1 Thermococcus kodakarensis KOD1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1IO2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1IO2 FirstGlance]. <br> |
| - | </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">RNHB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=69014 Pyrococcus kodakaraensis (strain KOD1)])</td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2Å</td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Ribonuclease_H Ribonuclease H], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.26.4 3.1.26.4] </span></td></tr>
| + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1io2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1io2 OCA], [https://pdbe.org/1io2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1io2 RCSB], [https://www.ebi.ac.uk/pdbsum/1io2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1io2 ProSAT]</span></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=1io2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1io2 OCA], [http://pdbe.org/1io2 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1io2 RCSB], [http://www.ebi.ac.uk/pdbsum/1io2 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1io2 ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/RNH2_THEKO RNH2_THEKO]] Endonuclease that specifically degrades the RNA of RNA-DNA hybrids. | + | [https://www.uniprot.org/uniprot/RNH2_THEKO RNH2_THEKO] Endonuclease that specifically degrades the RNA of RNA-DNA hybrids. |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | ==See Also== | | ==See Also== |
| | *[[Ribonuclease 3D structures|Ribonuclease 3D structures]] | | *[[Ribonuclease 3D structures|Ribonuclease 3D structures]] |
| - | *[[Temp|Temp]] | |
| | == References == | | == References == |
| | <references/> | | <references/> |
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| | </StructureSection> | | </StructureSection> |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Ribonuclease H]] | + | [[Category: Thermococcus kodakarensis KOD1]] |
| - | [[Category: Haruki, M]] | + | [[Category: Haruki M]] |
| - | [[Category: Ishikawa, M]] | + | [[Category: Ishikawa M]] |
| - | [[Category: Morikawa, M]] | + | [[Category: Morikawa M]] |
| - | [[Category: Muroya, A]] | + | [[Category: Muroya A]] |
| - | [[Category: Tsuchiya, D]] | + | [[Category: Tsuchiya D]] |
| - | [[Category: Endonuclease]]
| + | |
| - | [[Category: Hydrolase]]
| + | |
| Structural highlights
Function
RNH2_THEKO Endonuclease that specifically degrades the RNA of RNA-DNA hybrids.
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
The catalytic center of an archaeal Type 2 RNase H has been identified by a combination of X-ray crystallographic and mutational analyses. The crystal structure of the Type 2 RNase H from Thermococcus kodakaraensis KOD1 has revealed that the N-terminal major domain adopts the RNase H fold, despite the poor sequence similarity to the Type 1 RNase H. Mutational analyses showed that the catalytic reaction requires four acidic residues, which are well conserved in the Type 1 RNase H and the members of the polynucleotidyl transferase family. Thus, the Type 1 and Type 2 RNases H seem to share a common catalytic mechanism, except for the requirement of histidine as a general base in the former enzyme. Combined with the results from deletion mutant analyses, the structure suggests that the C-terminal domain of the Type 2 RNase H is involved in the interaction with the DNA/RNA hybrid.
Catalytic center of an archaeal type 2 ribonuclease H as revealed by X-ray crystallographic and mutational analyses.,Muroya A, Tsuchiya D, Ishikawa M, Haruki M, Morikawa M, Kanaya S, Morikawa K Protein Sci. 2001 Apr;10(4):707-14. PMID:11274461[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Muroya A, Tsuchiya D, Ishikawa M, Haruki M, Morikawa M, Kanaya S, Morikawa K. Catalytic center of an archaeal type 2 ribonuclease H as revealed by X-ray crystallographic and mutational analyses. Protein Sci. 2001 Apr;10(4):707-14. PMID:11274461
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