6c4p: Difference between revisions
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<StructureSection load='6c4p' size='340' side='right' caption='[[6c4p]], [[Resolution|resolution]] 2.30Å' scene=''> | <StructureSection load='6c4p' size='340' side='right' caption='[[6c4p]], [[Resolution|resolution]] 2.30Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[6c4p]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6C4P OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6C4P FirstGlance]. <br> | <table><tr><td colspan='2'>[[6c4p]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Baker's_yeast Baker's yeast]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6C4P OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6C4P FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=PEG:DI(HYDROXYETHYL)ETHER'>PEG</scene>, <scene name='pdbligand=PMP:4-DEOXY-4-AMINOPYRIDOXAL-5-PHOSPHATE'>PMP</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=PEG:DI(HYDROXYETHYL)ETHER'>PEG</scene>, <scene name='pdbligand=PMP:4-DEOXY-4-AMINOPYRIDOXAL-5-PHOSPHATE'>PMP</scene></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[6c2h|6c2h]], [[6c2q|6c2q]], [[6c2z|6c2z]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[6c2h|6c2h]], [[6c2q|6c2q]], [[6c2z|6c2z]]</td></tr> | ||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CYS4, STR4, YGR155W, G6667 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=559292 Baker's yeast])</td></tr> | |||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Cystathionine_beta-synthase Cystathionine beta-synthase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.2.1.22 4.2.1.22] </span></td></tr> | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Cystathionine_beta-synthase Cystathionine beta-synthase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.2.1.22 4.2.1.22] </span></td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6c4p FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6c4p OCA], [http://pdbe.org/6c4p PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6c4p RCSB], [http://www.ebi.ac.uk/pdbsum/6c4p PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6c4p ProSAT]</span></td></tr> | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6c4p FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6c4p OCA], [http://pdbe.org/6c4p PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6c4p RCSB], [http://www.ebi.ac.uk/pdbsum/6c4p PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6c4p ProSAT]</span></td></tr> | ||
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__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: Baker's yeast]] | |||
[[Category: Cystathionine beta-synthase]] | [[Category: Cystathionine beta-synthase]] | ||
[[Category: Berkowitz, D B]] | [[Category: Berkowitz, D B]] | ||
Revision as of 09:27, 20 June 2018
Crystal Structures of Cystathionine beta-Synthase from Saccharomyces cerevisiae: the Structure of the PMP ComplexCrystal Structures of Cystathionine beta-Synthase from Saccharomyces cerevisiae: the Structure of the PMP Complex
Structural highlights
Publication Abstract from PubMedCystathionine beta-synthase (CBS) is a key regulator of sulfur amino acid metabolism, taking homocysteine from the methionine cycle to the biosynthesis of cysteine via the trans-sulfuration pathway. CBS is also a predominant source of H2S biogenesis. Roles for CBS have been reported for neuronal death pursuant to cerebral ischemia, promoting ovarian tumor growth, and maintaining drug-resistant phenotype by controlling redox behavior and regulating mitochondrial bioenergetics. The trans-sulfuration pathway is well-conserved in eukaryotes, but the analogous enzymes have different enzymatic behavior in different organisms. CBSs from the higher organisms contain a heme in an N-terminal domain. Though the presence of the heme, whose functions in CBSs have yet to be elucidated, is biochemically interesting, it hampers UV-vis absorption spectroscopy investigations of pyridoxal 5'-phosphate (PLP) species. CBS from Saccharomyces cerevisiae (yCBS) naturally lacks the heme-containing N-terminal domain, which makes it an ideal model for spectroscopic studies of the enzymological reaction catalyzed and allows structural studies of the basic yCBS catalytic core (yCBS-cc). Here we present the crystal structure of yCBS-cc, solved to 1.5 A. Crystal structures of yCBS-cc in complex with enzymatic reaction intermediates have been captured, providing a structural basis for residues involved in catalysis. Finally, the structure of the yCBS-cc cofactor complex generated by incubation with an inhibitor shows apparent off-pathway chemistry not normally seen with CBS. Crystal Structures of Cystathionine beta-Synthase from Saccharomyces cerevisiae: One Enzymatic Step at a Time.,Tu Y, Kreinbring CA, Hill M, Liu C, Petsko GA, McCune CD, Berkowitz DB, Liu D, Ringe D Biochemistry. 2018 Apr 13. doi: 10.1021/acs.biochem.8b00092. PMID:29630349[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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