1bzy

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[[Image:1bzy.gif|left|200px]]<br /><applet load="1bzy" size="350" color="white" frame="true" align="right" spinBox="true"
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[[Image:1bzy.gif|left|200px]]
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caption="1bzy, resolution 2.00&Aring;" />
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'''HUMAN HGPRTASE WITH TRANSITION STATE INHIBITOR'''<br />
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{{Structure
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|PDB= 1bzy |SIZE=350|CAPTION= <scene name='initialview01'>1bzy</scene>, resolution 2.00&Aring;
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|SITE=
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|LIGAND= <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=IMU:PHOSPHORIC+ACID+MONO-[5-(2-AMINO-4-OXO-4,5-DIHYDRO-3H-PYRROLO[3,2-D]PYRIMIDIN-7-YL)-3,4-DIHYDROXY-PYRROLIDIN-2-YLMETHYL]+ESTER'>IMU</scene> and <scene name='pdbligand=POP:PYROPHOSPHATE 2-'>POP</scene>
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|ACTIVITY= [http://en.wikipedia.org/wiki/Hypoxanthine_phosphoribosyltransferase Hypoxanthine phosphoribosyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.2.8 2.4.2.8]
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|GENE=
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}}
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'''HUMAN HGPRTASE WITH TRANSITION STATE INHIBITOR'''
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==Overview==
==Overview==
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==About this Structure==
==About this Structure==
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1BZY is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] with <scene name='pdbligand=MG:'>MG</scene>, <scene name='pdbligand=IMU:'>IMU</scene> and <scene name='pdbligand=POP:'>POP</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. Active as [http://en.wikipedia.org/wiki/Hypoxanthine_phosphoribosyltransferase Hypoxanthine phosphoribosyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.2.8 2.4.2.8] Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BZY OCA].
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1BZY is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BZY OCA].
==Reference==
==Reference==
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The 2.0 A structure of human hypoxanthine-guanine phosphoribosyltransferase in complex with a transition-state analog inhibitor., Shi W, Li CM, Tyler PC, Furneaux RH, Grubmeyer C, Schramm VL, Almo SC, Nat Struct Biol. 1999 Jun;6(6):588-93. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=10360366 10360366]
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The 2.0 A structure of human hypoxanthine-guanine phosphoribosyltransferase in complex with a transition-state analog inhibitor., Shi W, Li CM, Tyler PC, Furneaux RH, Grubmeyer C, Schramm VL, Almo SC, Nat Struct Biol. 1999 Jun;6(6):588-93. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10360366 10360366]
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Hypoxanthine phosphoribosyltransferase]]
[[Category: Hypoxanthine phosphoribosyltransferase]]
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[[Category: transition state]]
[[Category: transition state]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 12:00:59 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 10:18:04 2008''

Revision as of 08:18, 20 March 2008

Image:1bzy.gif


PDB ID 1bzy

Drag the structure with the mouse to rotate
, resolution 2.00Å
Ligands: , and
Activity: Hypoxanthine phosphoribosyltransferase, with EC number 2.4.2.8
Coordinates: save as pdb, mmCIF, xml



HUMAN HGPRTASE WITH TRANSITION STATE INHIBITOR


Contents

Overview

The structure of human HGPRT bound to the transition-state analog immucillinGP and Mg2+-pyrophosphate has been determined to 2.0 A resolution. ImmucillinGP was designed as a stable analog with the stereoelectronic features of the transition state. Bound inhibitor at the catalytic site indicates that the oxocarbenium ion of the transition state is stabilized by neighboring-group participation from MgPPi and O5'. A short hydrogen bond forms between Asp 137 and the purine ring analog. Two Mg2+ ions sandwich the pyrophosphate and contact both hydroxyls of the ribosyl analog. The transition-state analog is shielded from bulk solvent by a catalytic loop that moves approximately 25 A to cover the active site and becomes an ordered antiparallel beta-sheet.

Disease

Known diseases associated with this structure: HPRT-related gout OMIM:[308000], Lesch-Nyhan syndrome, 300322, OMIM:[308000]

About this Structure

1BZY is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.

Reference

The 2.0 A structure of human hypoxanthine-guanine phosphoribosyltransferase in complex with a transition-state analog inhibitor., Shi W, Li CM, Tyler PC, Furneaux RH, Grubmeyer C, Schramm VL, Almo SC, Nat Struct Biol. 1999 Jun;6(6):588-93. PMID:10360366

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