4o61
From Proteopedia
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<StructureSection load='4o61' size='340' side='right' caption='[[4o61]], [[Resolution|resolution]] 1.90Å' scene=''> | <StructureSection load='4o61' size='340' side='right' caption='[[4o61]], [[Resolution|resolution]] 1.90Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[4o61]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4O61 OCA]. <br> | + | <table><tr><td colspan='2'>[[4o61]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4O61 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4O61 FirstGlance]. <br> |
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CIT:CITRIC+ACID'>CIT</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=UNL:UNKNOWN+LIGAND'>UNL</scene>, <scene name='pdbligand=UNX:UNKNOWN+ATOM+OR+ION'>UNX</scene><br> | </td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CIT:CITRIC+ACID'>CIT</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=UNL:UNKNOWN+LIGAND'>UNL</scene>, <scene name='pdbligand=UNX:UNKNOWN+ATOM+OR+ION'>UNX</scene><br> | ||
<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ALKBH5, ABH5, OFOXD1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr> | <tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ALKBH5, ABH5, OFOXD1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr> | ||
| - | <tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Glucokinase Glucokinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.2 2.7.1.2] </span></td></tr> | ||
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4o61 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4o61 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4o61 RCSB], [http://www.ebi.ac.uk/pdbsum/4o61 PDBsum]</span></td></tr> | <tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4o61 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4o61 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4o61 RCSB], [http://www.ebi.ac.uk/pdbsum/4o61 PDBsum]</span></td></tr> | ||
<table> | <table> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | N6-Methyladenosine (m6A) is the most prevalent internal RNA modification in eukaryotes. ALKBH5 belongs to the AlkB family of dioxygenases and has been shown to specifically demethylate m6A in single stranded RNA. Here we report crystal structures of ALKBH5 in the presence of either its cofactors or the ALKBH5 inhibitor citrate. Catalytic assays demonstrate that the ALKBH5 catalytic domain can demethylate both ssRNA and ssDNA. We identify the tricarboxylic acid (TCA) cycle intermediate citrate as a modest inhibitor of ALKHB5 (IC50: ~488 muM). The structural analysis reveals that a loop region of ALKBH5 is immobilized by a disulfide bond which apparently excludes the binding of dsDNA to ALKBH5. We identify the m6A binding pocket of ALKBH5 and the key residues involved in m6A recognition using mutagenesis and ITC binding experiments. | ||
| + | |||
| + | Structures of human ALKBH5 demethylase reveal a unique binding mode for specific single stranded m6A RNA demethylation.,Xu C, Liu K, Tempel W, Demetriades M, Aik W, Schofield CJ, Min J J Biol Chem. 2014 Apr 28. PMID:24778178<ref>PMID:24778178</ref> | ||
| + | |||
| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
== References == | == References == | ||
<references/> | <references/> | ||
Revision as of 04:44, 4 June 2014
Structure of human ALKBH5 crystallized in the presence of citrate
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