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==COMPARISON OF THE STRUCTURES OF WILD TYPE AND A N313T MUTANT OF ESCHERICHIA COLI GLYCERALDEHYDE 3-PHOSPHATE DEHYDROGENASES: IMPLICATION FOR NAD BINDING AND COOPERATIVITY==
==COMPARISON OF THE STRUCTURES OF WILD TYPE AND A N313T MUTANT OF ESCHERICHIA COLI GLYCERALDEHYDE 3-PHOSPHATE DEHYDROGENASES: IMPLICATION FOR NAD BINDING AND COOPERATIVITY==
<StructureSection load='1gad' size='340' side='right' caption='[[1gad]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
<StructureSection load='1gad' size='340' side='right'caption='[[1gad]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1gad]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1GAD OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1GAD FirstGlance]. <br>
<table><tr><td colspan='2'>[[1gad]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1GAD OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1GAD FirstGlance]. <br>
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=NAD:NICOTINAMIDE-ADENINE-DINUCLEOTIDE'>NAD</scene><br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.8&#8491;</td></tr>
<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Glyceraldehyde-3-phosphate_dehydrogenase_(phosphorylating) Glyceraldehyde-3-phosphate dehydrogenase (phosphorylating)], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.2.1.12 1.2.1.12] </span></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NAD:NICOTINAMIDE-ADENINE-DINUCLEOTIDE'>NAD</scene></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=1gad FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1gad OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1gad RCSB], [http://www.ebi.ac.uk/pdbsum/1gad PDBsum]</span></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=1gad FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1gad OCA], [https://pdbe.org/1gad PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1gad RCSB], [https://www.ebi.ac.uk/pdbsum/1gad PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1gad ProSAT]</span></td></tr>
<table>
</table>
== Function ==
[https://www.uniprot.org/uniprot/G3P1_ECOLI G3P1_ECOLI]
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
Check<jmol>
   <jmolCheckbox>
   <jmolCheckbox>
     <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ga/1gad_consurf.spt"</scriptWhenChecked>
     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ga/1gad_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
     <text>to colour the structure by Evolutionary Conservation</text>
   </jmolCheckbox>
   </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].
</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/main_output.php?pdb_ID=1gad ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The crystal structure of wild-type and N313T mutant glyceraldehyde 3-phosphate dehydrogenases from Escherichia coli was determined in the presence of NAD at 1.8 angstrom and 2.17 angstrom, respectively. The structure of the monomer and of the tetramer are similar to those observed for other GAPDHs. An exhaustive analysis of the hydrophobic clusters and the hydrogen bond networks explain the high degree of sequence conservation in GAPDHs. The structural effect of the N313T mutation is a change in the (phi,psi) angles of nearby residues Asn236 and Val237, while the structure around the mutated residue remains unchanged. A detailed comparison of the wild-type and N313T mutant E. coli GAPDH with the apo and holo forms of Bacillus stearothermophilus GAPDH is carried out in relation to the apo --&gt; holo transition. An unbiased set of about 60 residues, whose C(alpha) atoms remain in the same relative position in the different forms of the tetramer, is defined as the tetramer "core" which acts as a fixed scaffold around which structural rearrangements occur during the apo --&gt; holo transition. This core essentially includes beta-strands from the beta-sheets forming the O-P and Q-R interfaces, in particular strand beta1 which bears catalytic residue His176. During the apo --&gt; holo transition, dimer O-P rotates around the molecular P-axis by about +1 degrees, and dimer O-R by about -1 degrees. Further rotations of the NAD binding domain relative to the catalytic domain are discussed in relation to the molecular symmetry. The possible effect on NAD binding cooperativity of mutations around the tetramer core is exemplified by residue 252. The presence of a conserved hydrophilic patch embedded in the hydrophobic O-P interface is highlighted. A mechanism for substrate binding, different from those currently proposed, is described where the hydroxyl group of the substrate C(2) atom is hydrogen bonded to Cys149N.
Comparison of the structures of wild-type and a N313T mutant of Escherichia coli glyceraldehyde 3-phosphate dehydrogenases: implication for NAD binding and cooperativity.,Duee E, Olivier-Deyris L, Fanchon E, Corbier C, Branlant G, Dideberg O J Mol Biol. 1996 Apr 12;257(4):814-38. PMID:8636984<ref>PMID:8636984</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>


==See Also==
==See Also==
*[[Glyceraldehyde-3-Phosphate Dehydrogenase|Glyceraldehyde-3-Phosphate Dehydrogenase]]
*[[Aldehyde dehydrogenase 3D structures|Aldehyde dehydrogenase 3D structures]]
== References ==
*[[Glyceraldehyde-3-phosphate dehydrogenase 3D structures|Glyceraldehyde-3-phosphate dehydrogenase 3D structures]]
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
[[Category: Branlant, G.]]
[[Category: Large Structures]]
[[Category: Corbier, C.]]
[[Category: Branlant G]]
[[Category: Dideberg, O.]]
[[Category: Corbier C]]
[[Category: Duee, E.]]
[[Category: Dideberg O]]
[[Category: Fanchon, E.]]
[[Category: Duee E]]
[[Category: Olivier-Deyris, L.]]
[[Category: Fanchon E]]
[[Category: Olivier-Deyris L]]

Latest revision as of 10:24, 7 February 2024

COMPARISON OF THE STRUCTURES OF WILD TYPE AND A N313T MUTANT OF ESCHERICHIA COLI GLYCERALDEHYDE 3-PHOSPHATE DEHYDROGENASES: IMPLICATION FOR NAD BINDING AND COOPERATIVITYCOMPARISON OF THE STRUCTURES OF WILD TYPE AND A N313T MUTANT OF ESCHERICHIA COLI GLYCERALDEHYDE 3-PHOSPHATE DEHYDROGENASES: IMPLICATION FOR NAD BINDING AND COOPERATIVITY

Structural highlights

1gad is a 2 chain structure with sequence from Escherichia coli. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.8Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

G3P1_ECOLI

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

See Also

1gad, resolution 1.80Å

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