4weq: Difference between revisions
No edit summary |
No edit summary |
||
| (4 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
==Crystal structure of | |||
<StructureSection load='4weq' size='340' side='right' caption='[[4weq]], [[Resolution|resolution]] 2.00Å' scene=''> | ==Crystal structure of NADPH-dependent glyoxylate/hydroxypyruvate reductase SMc02828 (SmGhrA) from Sinorhizobium meliloti in complex with NADP and sulfate== | ||
<StructureSection load='4weq' size='340' side='right'caption='[[4weq]], [[Resolution|resolution]] 2.00Å' scene=''> | |||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[4weq]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4WEQ OCA]. For a <b>guided tour on the structure components</b> use [ | <table><tr><td colspan='2'>[[4weq]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Sinorhizobium_meliloti_1021 Sinorhizobium meliloti 1021]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4WEQ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4WEQ FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=NAP:NADP+NICOTINAMIDE-ADENINE-DINUCLEOTIDE+PHOSPHATE'>NAP</scene>, <scene name='pdbligand=PEG:DI(HYDROXYETHYL)ETHER'>PEG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=NAP:NADP+NICOTINAMIDE-ADENINE-DINUCLEOTIDE+PHOSPHATE'>NAP</scene>, <scene name='pdbligand=PEG:DI(HYDROXYETHYL)ETHER'>PEG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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=4weq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4weq OCA], [https://pdbe.org/4weq PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4weq RCSB], [https://www.ebi.ac.uk/pdbsum/4weq PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4weq ProSAT]</span></td></tr> | |||
</table> | </table> | ||
== Function == | |||
[https://www.uniprot.org/uniprot/Q92T34_RHIME Q92T34_RHIME] | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The d-2-hydroxyacid dehydrogenase (2HADH) family illustrates a complex evolutionary history with multiple lateral gene transfers and gene duplications and losses. As a result, the exact functional annotation of individual members can be extrapolated to a very limited extent. Here, we revise the previous simplified view on the classification of the 2HADH family; specifically, we show that the previously delineated glyoxylate/hydroxypyruvate reductase (GHPR) subfamily consists of two evolutionary separated GHRA and GHRB subfamilies. We compare two representatives of these subfamilies from Sinorhizobium meliloti (SmGhrA and SmGhrB), employing a combination of biochemical, structural, and bioinformatics approaches. Our kinetic results show that both enzymes reduce several 2-ketocarboxylic acids with overlapping, but not equivalent, substrate preferences. SmGhrA and SmGhrB show highest activity with glyoxylate and hydroxypyruvate, respectively; in addition, only SmGhrB reduces 2-keto-d-gluconate, and only SmGhrA reduces pyruvate (with low efficiency). We present nine crystal structures of both enzymes in apo forms and in complexes with cofactors and substrates/substrate analogues. In particular, we determined a crystal structure of SmGhrB with 2-keto-d-gluconate, which is the biggest substrate cocrystallized with a 2HADH member. The structures reveal significant differences between SmGhrA and SmGhrB, both in the overall structure and within the substrate-binding pocket, offering insight into the molecular basis for the observed substrate preferences and subfamily differences. In addition, we provide an overview of all GHRA and GHRB structures complexed with a ligand in the active site. | |||
Structural, Biochemical, and Evolutionary Characterizations of Glyoxylate/Hydroxypyruvate Reductases Show Their Division into Two Distinct Subfamilies.,Kutner J, Shabalin IG, Matelska D, Handing KB, Gasiorowska O, Sroka P, Gorna MW, Ginalski K, Wozniak K, Minor W Biochemistry. 2018 Jan 26. doi: 10.1021/acs.biochem.7b01137. PMID:29309127<ref>PMID:29309127</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 4weq" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: | [[Category: Sinorhizobium meliloti 1021]] | ||
[[Category: | [[Category: Almo SC]] | ||
[[Category: | [[Category: Bonanno J]] | ||
[[Category: | [[Category: Gasiorowska OA]] | ||
[[Category: | [[Category: Handing KB]] | ||
[[Category: | [[Category: Hillerich BS]] | ||
[[Category: | [[Category: Minor W]] | ||
[[Category: | [[Category: Osinski T]] | ||
[[Category: | [[Category: Shabalin IG]] | ||
[[Category: | [[Category: Sroka P]] | ||