1fbh

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[[Image:1fbh.jpg|left|200px]]
 
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{{Structure
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==CRYSTALLOGRAPHIC STUDIES OF THE CATALYTIC MECHANISM OF THE NEUTRAL FORM OF FRUCTOSE-1,6-BISPHOSPHATASE==
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|PDB= 1fbh |SIZE=350|CAPTION= <scene name='initialview01'>1fbh</scene>, resolution 2.5&Aring;
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<StructureSection load='1fbh' size='340' side='right'caption='[[1fbh]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
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|SITE=
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== Structural highlights ==
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|LIGAND=
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<table><tr><td colspan='2'>[[1fbh]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Sus_scrofa Sus scrofa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FBH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1FBH FirstGlance]. <br>
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|ACTIVITY= [http://en.wikipedia.org/wiki/Fructose-bisphosphatase Fructose-bisphosphatase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.3.11 3.1.3.11]
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.5&#8491;</td></tr>
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|GENE=
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=AFP:ALPHA+FRUCTOSE+1,6-DIPHOSPHATE'>AFP</scene>, <scene name='pdbligand=FBP:BETA-FRUCTOSE-1,6-DIPHOSPHATE'>FBP</scene></td></tr>
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}}
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1fbh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1fbh OCA], [https://pdbe.org/1fbh PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1fbh RCSB], [https://www.ebi.ac.uk/pdbsum/1fbh PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1fbh ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/F16P1_PIG F16P1_PIG]
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/fb/1fbh_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</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=1fbh ConSurf].
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<div style="clear:both"></div>
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'''CRYSTALLOGRAPHIC STUDIES OF THE CATALYTIC MECHANISM OF THE NEUTRAL FORM OF FRUCTOSE-1,6-BISPHOSPHATASE'''
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==See Also==
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*[[Fructose-1%2C6-bisphosphatase 3D structures|Fructose-1%2C6-bisphosphatase 3D structures]]
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__TOC__
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==Overview==
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</StructureSection>
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The crystal structures of fructose-1,6-bisphosphatase (EC 3.1.3.11) complexed with substrate alone or with substrate analogues in the presence of divalent metal ions have been determined. The substrate analogues, 2,5-anhydro-D-glucitol-1,6-bisphosphate (AhG-1,6-P2) and 2,5-anhydro-D-mannitol-1,6-bisphosphate (AhM-1,6-P2), differ from the alpha and beta anomers of fructose-1,6-bisphosphate (Fru-1,6-P2), respectively, in that the OH on C2 is replaced by a hydrogen atom. Structures have been refined at resolutions of 2.5 to 3.0 A to R factors of 0.172 to 0.195 with root-mean-square deviations of 0.012-0.018 A and 2.7-3.8 degrees from the ideal geometries of bond lengths and bond angles, respectively. In addition, the complex of substrate with the enzyme has been determined in the absence of metal. The electron density at 2.5-A resolution does not distinguish between alpha and beta anomers, which differ for the most part only in the position of the 1-phosphate group and the orientation of the C2-hydroxyl group. The positions of the 6-phosphate and the sugar ring of the substrate analogues are almost identical to those of the respective anomer of the substrate. In the presence of metal ions the positions of the 1-phosphate groups of both alpha and beta analogues differ significantly (0.8-1.0 A) from those of anomers of the substrate in the metal-free complex. Two metal ions (Mn2+ or Zn2+) are located at the enzyme active site of complexes of the alpha analogue AhG-1,6-P2. Metal site 1 is coordinated by the carboxylate groups of Glu-97, Asp-118, and Glu-280 and the 1-phosphate group of substrate analogue, while the metal site 2 is coordinated by the carboxylate groups of Glu-97, Asp-118, the 1-phosphate group of substrate analogue, and the carbonyl oxygen of Leu-120. Both metal sites have a distorted tetrahedral geometry. However, only one metal ion (Mg2+ or Mn2+) is found very near the metal site 1 in the enzyme's active site in complexes of the beta analogue AhM-1,6-P2 or for Mg2+ in the complex of the alpha analogue AhG-1,6-P2. This single metal ion is coordinated by the carboxylate groups of Glu-97, Asp-118, Asp-121, and Glu-280 and the 1-phosphate group of substrate analogue in a distorted square pyramidal geometry.(ABSTRACT TRUNCATED AT 400 WORDS)
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[[Category: Large Structures]]
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==About this Structure==
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1FBH is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Sus_scrofa Sus scrofa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FBH OCA].
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==Reference==
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Crystallographic studies of the catalytic mechanism of the neutral form of fructose-1,6-bisphosphatase., Zhang Y, Liang JY, Huang S, Ke H, Lipscomb WN, Biochemistry. 1993 Feb 23;32(7):1844-57. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/8382525 8382525]
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[[Category: Fructose-bisphosphatase]]
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[[Category: Single protein]]
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[[Category: Sus scrofa]]
[[Category: Sus scrofa]]
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[[Category: Huang, S.]]
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[[Category: Huang S]]
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[[Category: Ke, H.]]
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[[Category: Ke H]]
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[[Category: Liang, J Y.]]
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[[Category: Liang J-Y]]
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[[Category: Lipscomb, W N.]]
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[[Category: Lipscomb WN]]
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[[Category: Zhang, Y.]]
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[[Category: Zhang Y]]
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[[Category: hydrolase(phosphoric monoester)]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 11:06:58 2008''
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Current revision

CRYSTALLOGRAPHIC STUDIES OF THE CATALYTIC MECHANISM OF THE NEUTRAL FORM OF FRUCTOSE-1,6-BISPHOSPHATASE

PDB ID 1fbh

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