2d5d: Difference between revisions
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<StructureSection load='2d5d' size='340' side='right'caption='[[2d5d]], [[Resolution|resolution]] 1.55Å' scene=''> | <StructureSection load='2d5d' size='340' side='right'caption='[[2d5d]], [[Resolution|resolution]] 1.55Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2d5d]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/ | <table><tr><td colspan='2'>[[2d5d]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Pyrococcus_horikoshii_OT3 Pyrococcus horikoshii OT3]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2D5D OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2D5D FirstGlance]. <br> | ||
</td></tr><tr id=' | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.55Å</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=2d5d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2d5d OCA], [https://pdbe.org/2d5d PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2d5d RCSB], [https://www.ebi.ac.uk/pdbsum/2d5d PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2d5d ProSAT], [https://www.topsan.org/Proteins/RSGI/2d5d TOPSAN]</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=2d5d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2d5d OCA], [https://pdbe.org/2d5d PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2d5d RCSB], [https://www.ebi.ac.uk/pdbsum/2d5d PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2d5d ProSAT], [https://www.topsan.org/Proteins/RSGI/2d5d TOPSAN]</span></td></tr> | ||
</table> | </table> | ||
== Function == | |||
[https://www.uniprot.org/uniprot/O59021_PYRHO O59021_PYRHO] | |||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
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</StructureSection> | </StructureSection> | ||
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
[[Category: Pyrococcus horikoshii OT3]] | |||
[[Category: Pyrococcus horikoshii]] | [[Category: Bagautdinov B]] | ||
[[Category: Bagautdinov | [[Category: Kunishima N]] | ||
[[Category: Kunishima | |||
Latest revision as of 11:24, 25 October 2023
Structure of Biotin Carboxyl Carrier Protein (74Val start) from Pyrococcus horikoshi OT3 Ligand Free Form IIStructure of Biotin Carboxyl Carrier Protein (74Val start) from Pyrococcus horikoshi OT3 Ligand Free Form II
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 PubMedBiotin protein ligase (BPL) catalyzes the biotinylation of the biotin carboxyl carrier protein (BCCP) only at a special lysine residue. Here we report the first structure of BPL.BCCP complex crystals, which are prepared using two BPL mutants: R48A and R48A/K111A. From a detailed structural characterization, it is likely that the mutants retain functionality as enzymes but have a reduced activity to produce the reaction intermediate biotinyl-5'-AMP. The observed biotin and partly disordered ATP in the mutant structures may act as a non-reactive analog of the substrates or biotinyl-5'-AMP, thereby providing the complex crystals. The four crystallographically independent BPL.BCCP complexes obtained can be classified structurally into three groups: the formation stages 1 and 2 with apo-BCCP and the product stage with biotinylated holo-BCCP. Residues responsible for the complex formation as well as for the biotinylation reaction have been identified. The C-terminal domain of BPL shows especially large conformational changes to accommodate BCCP, suggesting its functional importance. The formation stage 1 complex shows the closest distance between the carboxyl carbon of biotin and the special lysine of BCCP, suggesting its relevance to the unobserved reaction stage. Interestingly, bound ATP and biotin are also seen in the product stage, indicating that the substrates may be recruited into the product stage complex before the release of holo-BCCP, probably for the next reaction cycle. The existence of formation and product stages before and after the reaction stage would be favorable to ensure both the reaction efficiency and the extreme substrate specificity of the biotinylation reaction. Protein biotinylation visualized by a complex structure of biotin protein ligase with a substrate.,Bagautdinov B, Matsuura Y, Bagautdinova S, Kunishima N J Biol Chem. 2008 May 23;283(21):14739-50. Epub 2008 Mar 26. PMID:18372281[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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