4bkm: Difference between revisions
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==Crystal structure of the murine AUM (phosphoglycolate phosphatase) capping domain as a fusion protein with the catalytic core domain of murine chronophin (pyridoxal phosphate phosphatase)== | |||
<StructureSection load='4bkm' size='340' side='right' caption='[[4bkm]], [[Resolution|resolution]] 2.65Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[4bkm]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Lk3_transgenic_mice Lk3 transgenic mice]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4BKM OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4BKM FirstGlance]. <br> | |||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=NO3:NITRATE+ION'>NO3</scene></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=4bkm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4bkm OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4bkm RCSB], [http://www.ebi.ac.uk/pdbsum/4bkm PDBsum]</span></td></tr> | |||
</table> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Mammalian haloacid dehalogenase (HAD)-type phosphatases are an emerging family of phosphatases with important functions in physiology and disease, yet little is known about the basis of their substrate specificity. Here, we characterize a previously unexplored HAD family member (gene annotation: phosphoglycolate phosphatase) that we termed AUM, for aspartate-based, ubiquitous, Mg2+-dependent phosphatase. AUM is a tyrosine-specific paralog of the serine/threonine-specific protein and pyridoxal 5'-phosphate-directed HAD phosphatase chronophin. Comparative evolutionary and biochemical analyses reveal that a single, differently conserved residue in the cap domain of either AUM or chronophin is crucial for phosphatase specificity. We have solved the X-ray crystal structure of the AUM cap fused to the catalytic core of chronophin to 2.65 A resolution and present a detailed view of the catalytic clefts of AUM and chronophin that explains their substrate preferences. Our findings identify a small number of cap domain residues that encode the different substrate specificities of AUM and chronophin. | |||
Evolutionary and Structural Analyses of the Mammalian Haloacid Dehalogenase-Type Phosphatases AUM and Chronophin Provide Insight into the Basis of their Different Substrate Specificities.,Seifried A, Knobloch G, Duraphe PS, Segerer G, Manhard J, Schindelin H, Schultz J, Gohla A J Biol Chem. 2013 Dec 13. PMID:24338473<ref>PMID:24338473</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
== References == | |||
== | <references/> | ||
__TOC__ | |||
[[Category: Gohla, A | </StructureSection> | ||
[[Category: Knobloch, G | [[Category: Lk3 transgenic mice]] | ||
[[Category: Schindelin, H | [[Category: Gohla, A]] | ||
[[Category: Seifried, A | [[Category: Knobloch, G]] | ||
[[Category: Schindelin, H]] | |||
[[Category: Seifried, A]] | |||
[[Category: Had family]] | [[Category: Had family]] | ||
[[Category: Hydrolase]] | [[Category: Hydrolase]] | ||
Revision as of 16:20, 21 December 2014
Crystal structure of the murine AUM (phosphoglycolate phosphatase) capping domain as a fusion protein with the catalytic core domain of murine chronophin (pyridoxal phosphate phosphatase)
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