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==Crystal structure of Bacillus stearothermophilus CCA-adding enzyme in complex with ATP== | |||
<StructureSection load='1miw' size='340' side='right'caption='[[1miw]], [[Resolution|resolution]] 3.00Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[1miw]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Geobacillus_stearothermophilus Geobacillus stearothermophilus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1MIW OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1MIW FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ATP:ADENOSINE-5-TRIPHOSPHATE'>ATP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></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=1miw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1miw OCA], [https://pdbe.org/1miw PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1miw RCSB], [https://www.ebi.ac.uk/pdbsum/1miw PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1miw ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/CCA_GEOSE CCA_GEOSE] | |||
== Evolutionary Conservation == | |||
[[Image:Consurf_key_small.gif|200px|right]] | |||
Check<jmol> | |||
<jmolCheckbox> | |||
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/mi/1miw_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked> | |||
<text>to colour the structure by Evolutionary Conservation</text> | |||
</jmolCheckbox> | |||
</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/main_output.php?pdb_ID=1miw ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
CCA-adding enzymes polymerize CCA onto the 3' terminus of immature tRNAs without using a nucleic acid template. The 3.0 A resolution crystal structures of the CCA-adding enzyme from Bacillus stearothermophilus and its complexes with ATP or CTP reveal a seahorse-shaped subunit consisting of four domains: head, neck, body, and tail. The head is structurally homologous to the palm domain of DNA polymerase beta but has additional structural features and functions. The neck, body, and tail represent new protein folding motifs. The neck provides a specific template for the incoming ATP or CTP, whereas the body and tail may bind tRNA. Each subunit has one active site capable of switching its base specificity between ATP and CTP, an important component of the CCA-adding mechanism. | |||
Crystal structures of the Bacillus stearothermophilus CCA-adding enzyme and its complexes with ATP or CTP.,Li F, Xiong Y, Wang J, Cho HD, Tomita K, Weiner AM, Steitz TA Cell. 2002 Dec 13;111(6):815-24. PMID:12526808<ref>PMID:12526808</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 1miw" style="background-color:#fffaf0;"></div> | |||
== | ==See Also== | ||
*[[CCA-adding enzyme 3D structures|CCA-adding enzyme 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Geobacillus stearothermophilus]] | [[Category: Geobacillus stearothermophilus]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: Cho | [[Category: Cho HD]] | ||
[[Category: Li | [[Category: Li F]] | ||
[[Category: Steitz | [[Category: Steitz TA]] | ||
[[Category: Wang | [[Category: Wang J]] | ||
[[Category: Weiner | [[Category: Weiner AM]] | ||
[[Category: Xiong | [[Category: Xiong Y]] | ||
Latest revision as of 10:01, 30 October 2024
Crystal structure of Bacillus stearothermophilus CCA-adding enzyme in complex with ATPCrystal structure of Bacillus stearothermophilus CCA-adding enzyme in complex with ATP
Structural highlights
FunctionEvolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedCCA-adding enzymes polymerize CCA onto the 3' terminus of immature tRNAs without using a nucleic acid template. The 3.0 A resolution crystal structures of the CCA-adding enzyme from Bacillus stearothermophilus and its complexes with ATP or CTP reveal a seahorse-shaped subunit consisting of four domains: head, neck, body, and tail. The head is structurally homologous to the palm domain of DNA polymerase beta but has additional structural features and functions. The neck, body, and tail represent new protein folding motifs. The neck provides a specific template for the incoming ATP or CTP, whereas the body and tail may bind tRNA. Each subunit has one active site capable of switching its base specificity between ATP and CTP, an important component of the CCA-adding mechanism. Crystal structures of the Bacillus stearothermophilus CCA-adding enzyme and its complexes with ATP or CTP.,Li F, Xiong Y, Wang J, Cho HD, Tomita K, Weiner AM, Steitz TA Cell. 2002 Dec 13;111(6):815-24. PMID:12526808[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences |
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