4b5j
From Proteopedia
(Difference between revisions)
(New page: '''Unreleased structure''' The entry 4b5j is ON HOLD until Paper Publication Authors: Lu, D., Silhan, J., MacDonald, J.T., Carpenter, E.P., Jensen, K., Tang, C., Baldwin, G.S., Freemont...) |
|||
| (8 intermediate revisions not shown.) | |||
| Line 1: | Line 1: | ||
| - | '''Unreleased structure''' | ||
| - | + | ==Neisseria AP endonuclease bound to the substrate with an orphan Adenine base== | |
| + | <StructureSection load='4b5j' size='340' side='right'caption='[[4b5j]], [[Resolution|resolution]] 2.10Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[4b5j]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Neisseria_meningitidis Neisseria meningitidis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4B5J OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4B5J 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]] 2.1Å</td></tr> | ||
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=3DR:1,2-DIDEOXYRIBOFURANOSE-5-PHOSPHATE'>3DR</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=4b5j FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4b5j OCA], [https://pdbe.org/4b5j PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4b5j RCSB], [https://www.ebi.ac.uk/pdbsum/4b5j PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4b5j ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/Q7DD47_NEIMB Q7DD47_NEIMB] | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Base excision repair (BER) is a highly conserved DNA repair pathway throughout all kingdoms from bacteria to humans. Whereas several enzymes are required to complete the multistep repair process of damaged bases, apurinic-apyrimidic (AP) endonucleases play an essential role in enabling the repair process by recognizing intermediary abasic sites cleaving the phosphodiester backbone 5' to the abasic site. Despite extensive study, there is no structure of a bacterial AP endonuclease bound to substrate DNA. Furthermore, the structural mechanism for AP-site cleavage is incomplete. Here we report a detailed structural and biochemical study of the AP endonuclease from Neisseria meningitidis that has allowed us to capture structural intermediates providing more complete snapshots of the catalytic mechanism. Our data reveal subtle differences in AP-site recognition and kinetics between the human and bacterial enzymes that may reflect different evolutionary pressures. | ||
| - | + | Structural basis for the recognition and cleavage of abasic DNA in Neisseria meningitidis.,Lu D, Silhan J, Macdonald JT, Carpenter EP, Jensen K, Tang CM, Baldwin GS, Freemont PS Proc Natl Acad Sci U S A. 2012 Oct 3. PMID:23035246<ref>PMID:23035246</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| + | </div> | ||
| + | <div class="pdbe-citations 4b5j" style="background-color:#fffaf0;"></div> | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Neisseria meningitidis]] | ||
| + | [[Category: Baldwin GS]] | ||
| + | [[Category: Carpenter EP]] | ||
| + | [[Category: Freemont PS]] | ||
| + | [[Category: Jensen K]] | ||
| + | [[Category: Lu D]] | ||
| + | [[Category: MacDonald JT]] | ||
| + | [[Category: Silhan J]] | ||
| + | [[Category: Tang CM]] | ||
Current revision
Neisseria AP endonuclease bound to the substrate with an orphan Adenine base
| |||||||||||
