View source for 6qxn


==Crystal structure of the CCA-adding enzyme of a psychrophilic organism in complex with CTP==
<StructureSection load='6qxn' size='340' side='right'caption='[[6qxn]], [[Resolution|resolution]] 1.85&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6qxn]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Planococcus_halocryophilus Planococcus halocryophilus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6QXN OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6QXN 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]] 1.849&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=CTP:CYTIDINE-5-TRIPHOSPHATE'>CTP</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</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=6qxn FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6qxn OCA], [https://pdbe.org/6qxn PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6qxn RCSB], [https://www.ebi.ac.uk/pdbsum/6qxn PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6qxn ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/A0A1C7DQ98_9BACL A0A1C7DQ98_9BACL] Catalyzes the addition and repair of the essential 3'-terminal CCA sequence in tRNAs without using a nucleic acid template. Adds these three nucleotides in the order of C, C, and A to the tRNA nucleotide-73, using CTP and ATP as substrates and producing inorganic pyrophosphate.[SAAS:SAAS00711016]

==See Also==
*[[CCA-adding enzyme 3D structures|CCA-adding enzyme 3D structures]]
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Planococcus halocryophilus]]
[[Category: Betat H]]
[[Category: Bluhm A]]
[[Category: Hennig O]]
[[Category: Lorber B]]
[[Category: Moerl M]]
[[Category: Rollet K]]
[[Category: Sauter C]]
[[Category: De Wijn R]]