4ohy
From Proteopedia
(Difference between revisions)
| Line 4: | Line 4: | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[4ohy]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Caenorhabditis_elegans Caenorhabditis elegans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4OHY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4OHY FirstGlance]. <br> | <table><tr><td colspan='2'>[[4ohy]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Caenorhabditis_elegans Caenorhabditis elegans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4OHY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4OHY FirstGlance]. <br> | ||
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=2PE:NONAETHYLENE+GLYCOL'>2PE</scene>, <scene name='pdbligand=ANP:PHOSPHOAMINOPHOSPHONIC+ACID-ADENYLATE+ESTER'>ANP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></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='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=2PE:NONAETHYLENE+GLYCOL'>2PE</scene>, <scene name='pdbligand=ANP:PHOSPHOAMINOPHOSPHONIC+ACID-ADENYLATE+ESTER'>ANP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</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=4ohy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4ohy OCA], [https://pdbe.org/4ohy PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4ohy RCSB], [https://www.ebi.ac.uk/pdbsum/4ohy PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4ohy ProSAT]</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=4ohy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4ohy OCA], [https://pdbe.org/4ohy PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4ohy RCSB], [https://www.ebi.ac.uk/pdbsum/4ohy PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4ohy ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
[https://www.uniprot.org/uniprot/CLP1_CAEEL CLP1_CAEEL] Required for endonucleolytic cleavage during polyadenylation-dependent pre-mRNA 3'-end formation (By similarity). | [https://www.uniprot.org/uniprot/CLP1_CAEEL CLP1_CAEEL] Required for endonucleolytic cleavage during polyadenylation-dependent pre-mRNA 3'-end formation (By similarity). | ||
| - | <div style="background-color:#fffaf0;"> | ||
| - | == Publication Abstract from PubMed == | ||
| - | RNA-specific polynucleotide kinases of the Clp1 subfamily are key components of various RNA maturation pathways. However, the structural basis explaining their substrate specificity and the enzymatic mechanism is elusive. Here, we report crystal structures of Clp1 from Caenorhabditis elegans (ceClp1) in a number of nucleotide- and RNA-bound states along the reaction pathway. The combined structural and biochemical analysis of ceClp1 elucidates the RNA specificity and lets us derive a general model for enzyme catalysis of RNA-specific polynucleotide kinases. We identified an RNA binding motif referred to as "clasp" as well as a conformational switch that involves the essential Walker A lysine (Lys127) and regulates the enzymatic activity of ceClp1. Structural comparison with other P loop proteins, such as kinases, adenosine triphosphatases (ATPases), and guanosine triphosphatases (GTPases), suggests that the observed conformational switch of the Walker A lysine is a broadly relevant mechanistic feature. | ||
| - | |||
| - | RNA specificity and regulation of catalysis in the eukaryotic polynucleotide kinase clp1.,Dikfidan A, Loll B, Zeymer C, Magler I, Clausen T, Meinhart A Mol Cell. 2014 Jun 19;54(6):975-86. doi: 10.1016/j.molcel.2014.04.005. Epub 2014 , May 8. PMID:24813946<ref>PMID:24813946</ref> | ||
| - | |||
| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| - | </div> | ||
| - | <div class="pdbe-citations 4ohy" style="background-color:#fffaf0;"></div> | ||
| - | == References == | ||
| - | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
Current revision
C. Elegans Clp1 bound to ssRNA dinucleotide GC, AMP-PNP, and Mg2+(inhibited substrate bound state)
| |||||||||||
