2av5: Difference between revisions
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==Crystal structure of Pyrococcus furiosus Pop5, an archaeal Ribonuclease P protein== | ==Crystal structure of Pyrococcus furiosus Pop5, an archaeal Ribonuclease P protein== | ||
<StructureSection load='2av5' size='340' side='right' caption='[[2av5]], [[Resolution|resolution]] 3.15Å' scene=''> | <StructureSection load='2av5' size='340' side='right'caption='[[2av5]], [[Resolution|resolution]] 3.15Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2av5]] is a 5 chain structure with sequence from [ | <table><tr><td colspan='2'>[[2av5]] is a 5 chain structure with sequence from [https://en.wikipedia.org/wiki/Atcc_43587 Atcc 43587]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2AV5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2AV5 FirstGlance]. <br> | ||
</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">rnp2 ([ | </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">rnp2 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2261 ATCC 43587])</td></tr> | ||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Ribonuclease_P Ribonuclease P], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.26.5 3.1.26.5] </span></td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2av5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2av5 OCA], [https://pdbe.org/2av5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2av5 RCSB], [https://www.ebi.ac.uk/pdbsum/2av5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2av5 ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
[[ | [[https://www.uniprot.org/uniprot/RNP2_PYRFU RNP2_PYRFU]] Part of ribonuclease P, a protein complex that generates mature tRNA molecules by cleaving their 5'-ends. The RNA is catalytic, but its KM for pre-tRNA is 170-fold decreased in the presence of the 4 known protein subunits (Rnp1-4). The protein subunits also decrease the amount of Mg(2+) needed for activity.<ref>PMID:17053064</ref> <ref>PMID:21683084</ref> <ref>PMID:22298511</ref> | ||
== 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|Ribonuclease]] | *[[Ribonuclease 3D structures|Ribonuclease 3D structures]] | ||
*[[Temp|Temp]] | *[[Temp|Temp]] | ||
== References == | == References == | ||
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</StructureSection> | </StructureSection> | ||
[[Category: Atcc 43587]] | [[Category: Atcc 43587]] | ||
[[Category: Large Structures]] | |||
[[Category: Ribonuclease P]] | [[Category: Ribonuclease P]] | ||
[[Category: Bell, C E]] | [[Category: Bell, C E]] | ||
Revision as of 11:38, 27 January 2021
Crystal structure of Pyrococcus furiosus Pop5, an archaeal Ribonuclease P proteinCrystal structure of Pyrococcus furiosus Pop5, an archaeal Ribonuclease P protein
Structural highlights
Function[RNP2_PYRFU] Part of ribonuclease P, a protein complex that generates mature tRNA molecules by cleaving their 5'-ends. The RNA is catalytic, but its KM for pre-tRNA is 170-fold decreased in the presence of the 4 known protein subunits (Rnp1-4). The protein subunits also decrease the amount of Mg(2+) needed for activity.[1] [2] [3] 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 PubMedWe have used NMR spectroscopy and x-ray crystallography to determine the three-dimensional structure of PF1378 (Pfu Pop5), one of four protein subunits of archaeal RNase P that shares a homolog in the eukaryotic enzyme. RNase P is an essential and ubiquitous ribonucleoprotein enzyme required for maturation of tRNA. In bacteria, the enzyme's RNA subunit is responsible for cleaving the single-stranded 5' leader sequence of precursor tRNA molecules (pre-tRNA), whereas the protein subunit assists in substrate binding. Although in bacteria the RNase P holoenzyme consists of one large catalytic RNA and one small protein subunit, in archaea and eukarya the enzyme contains several (> or =4) protein subunits, each of which lacks sequence similarity to the bacterial protein. The functional role of the proteins is poorly understood, as is the increased complexity in comparison to the bacterial enzyme. Pfu Pop5 has been directly implicated in catalysis by the observation that it pairs with PF1914 (Pfu Rpp30) to functionally reconstitute the catalytic domain of the RNA subunit. The protein adopts an alpha-beta sandwich fold highly homologous to the single-stranded RNA binding RRM domain. Furthermore, the three-dimensional arrangement of Pfu Pop5's structural elements is remarkably similar to that of the bacterial protein subunit. NMR spectra have been used to map the interaction of Pop5 with Pfu Rpp30. The data presented permit tantalizing hypotheses regarding the role of this protein subunit shared by archaeal and eukaryotic RNase P. Structure of Pfu Pop5, an archaeal RNase P protein.,Wilson RC, Bohlen CJ, Foster MP, Bell CE Proc Natl Acad Sci U S A. 2006 Jan 24;103(4):873-8. Epub 2006 Jan 17. PMID:16418270[4] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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