1ygp
From Proteopedia
(Difference between revisions)
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- | [[ | + | ==PHOSPHORYLATED FORM OF YEAST GLYCOGEN PHOSPHORYLASE WITH PHOSPHATE BOUND IN THE ACTIVE SITE.== |
+ | <StructureSection load='1ygp' size='340' side='right' caption='[[1ygp]], [[Resolution|resolution]] 2.80Å' scene=''> | ||
+ | == Structural highlights == | ||
+ | <table><tr><td colspan='2'>[[1ygp]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. The December 2001 RCSB PDB [http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Glycogen Phosphorylase'' by David S. Goodsell is [http://dx.doi.org/10.2210/rcsb_pdb/mom_2001_12 10.2210/rcsb_pdb/mom_2001_12]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1YGP OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1YGP FirstGlance]. <br> | ||
+ | </td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=PLP:PYRIDOXAL-5-PHOSPHATE'>PLP</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene><br> | ||
+ | <tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">YEAST GLYCOGEN PHOSPHORYLASE ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 Saccharomyces cerevisiae])</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=1ygp FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ygp OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1ygp RCSB], [http://www.ebi.ac.uk/pdbsum/1ygp PDBsum]</span></td></tr> | ||
+ | <table> | ||
+ | == Evolutionary Conservation == | ||
+ | [[Image:Consurf_key_small.gif|200px|right]] | ||
+ | Check<jmol> | ||
+ | <jmolCheckbox> | ||
+ | <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/yg/1ygp_consurf.spt"</scriptWhenChecked> | ||
+ | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
+ | <text>to colour the structure by Evolutionary Conservation</text> | ||
+ | </jmolCheckbox> | ||
+ | </jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf]. | ||
+ | <div style="clear:both"></div> | ||
+ | <div style="background-color:#fffaf0;"> | ||
+ | == Publication Abstract from PubMed == | ||
+ | A phosphorylation-initiated mechanism of local protein refolding activates yeast glycogen phosphorylase (GP). Refolding of the phosphorylated amino-terminus was shown to create a hydrophobic cluster that wedges into the subunit interface of the enzyme to trigger activation. The phosphorylated threonine is buried in the allosteric site. The mechanism implicates glucose 6-phosphate, the allosteric inhibitor, in facilitating dephosphorylation by dislodging the buried covalent phosphate through binding competition. Thus, protein phosphorylation-dephosphorylation may also be controlled through regulation of the accessibility of the phosphorylation site to kinases and phosphatases. In mammalian glycogen phosphorylase, phosphorylation occurs at a distinct locus. The corresponding allosteric site binds a ligand activator, adenosine monophosphate, which triggers activation by a mechanism analogous to that of phosphorylation in the yeast enzyme. | ||
- | + | A protein phosphorylation switch at the conserved allosteric site in GP.,Lin K, Rath VL, Dai SC, Fletterick RJ, Hwang PK Science. 1996 Sep 13;273(5281):1539-42. PMID:8703213<ref>PMID:8703213</ref> | |
- | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
- | + | </div> | |
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==See Also== | ==See Also== | ||
*[[Glycogen Phosphorylase|Glycogen Phosphorylase]] | *[[Glycogen Phosphorylase|Glycogen Phosphorylase]] | ||
- | + | == References == | |
- | == | + | <references/> |
- | < | + | __TOC__ |
+ | </StructureSection> | ||
[[Category: Glycogen Phosphorylase]] | [[Category: Glycogen Phosphorylase]] | ||
[[Category: RCSB PDB Molecule of the Month]] | [[Category: RCSB PDB Molecule of the Month]] |
Revision as of 19:14, 28 September 2014
PHOSPHORYLATED FORM OF YEAST GLYCOGEN PHOSPHORYLASE WITH PHOSPHATE BOUND IN THE ACTIVE SITE.
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