1cj0

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[[Image:1cj0.gif|left|200px]]
 
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{{Structure
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==CRYSTAL STRUCTURE OF RABBIT CYTOSOLIC SERINE HYDROXYMETHYLTRANSFERASE AT 2.8 ANGSTROM RESOLUTION==
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|PDB= 1cj0 |SIZE=350|CAPTION= <scene name='initialview01'>1cj0</scene>, resolution 2.80&Aring;
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<StructureSection load='1cj0' size='340' side='right'caption='[[1cj0]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
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|SITE=
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== Structural highlights ==
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|LIGAND= <scene name='pdbligand=PLP:PYRIDOXAL-5&#39;-PHOSPHATE'>PLP</scene>
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<table><tr><td colspan='2'>[[1cj0]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CJ0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1CJ0 FirstGlance]. <br>
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|ACTIVITY=
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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]] 2.8&#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=PLP:PYRIDOXAL-5-PHOSPHATE'>PLP</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=1cj0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1cj0 OCA], [https://pdbe.org/1cj0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1cj0 RCSB], [https://www.ebi.ac.uk/pdbsum/1cj0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1cj0 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/GLYC_RABIT GLYC_RABIT] Interconversion of serine and glycine.
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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/cj/1cj0_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=1cj0 ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Serine hydroxymethyltransferase (SHMT) catalyzes the reversible cleavage of serine to form glycine and single carbon groups that are essential for many biosynthetic pathways. SHMT requires both pyridoxal phosphate (PLP) and tetrahydropteroylpolyglutamate (H4PteGlun) as cofactors, the latter as a carrier of the single carbon group. We describe here the crystal structure at 2.8 A resolution of rabbit cytosolic SHMT (rcSHMT) in two forms: one with the PLP covalently bound as an aldimine to the Nepsilon-amino group of the active site lysine and the other with the aldimine reduced to a secondary amine. The rcSHMT structure closely resembles the structure of human SHMT, confirming its similarity to the alpha-class of PLP enzymes. The structures reported here further permit identification of changes in the PLP group that accompany formation of the geminal diamine complex, the first intermediate in the reaction pathway. On the basis of the current mechanism derived from solution studies and the properties of site mutants, we are able to model the binding of both the serine substrate and the H4PteGlun cofactor. This model explains the properties of several site mutants of SHMT and offers testable hypotheses for a more detailed mechanism of this enzyme.
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'''CRYSTAL STRUCTURE OF RABBIT CYTOSOLIC SERINE HYDROXYMETHYLTRANSFERASE AT 2.8 ANGSTROM RESOLUTION'''
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Crystal structure of rabbit cytosolic serine hydroxymethyltransferase at 2.8 A resolution: mechanistic implications.,Scarsdale JN, Kazanina G, Radaev S, Schirch V, Wright HT Biochemistry. 1999 Jun 29;38(26):8347-58. PMID:10387080<ref>PMID:10387080</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 1cj0" style="background-color:#fffaf0;"></div>
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==Overview==
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==See Also==
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Serine hydroxymethyltransferase (SHMT) catalyzes the reversible cleavage of serine to form glycine and single carbon groups that are essential for many biosynthetic pathways. SHMT requires both pyridoxal phosphate (PLP) and tetrahydropteroylpolyglutamate (H4PteGlun) as cofactors, the latter as a carrier of the single carbon group. We describe here the crystal structure at 2.8 A resolution of rabbit cytosolic SHMT (rcSHMT) in two forms: one with the PLP covalently bound as an aldimine to the Nepsilon-amino group of the active site lysine and the other with the aldimine reduced to a secondary amine. The rcSHMT structure closely resembles the structure of human SHMT, confirming its similarity to the alpha-class of PLP enzymes. The structures reported here further permit identification of changes in the PLP group that accompany formation of the geminal diamine complex, the first intermediate in the reaction pathway. On the basis of the current mechanism derived from solution studies and the properties of site mutants, we are able to model the binding of both the serine substrate and the H4PteGlun cofactor. This model explains the properties of several site mutants of SHMT and offers testable hypotheses for a more detailed mechanism of this enzyme.
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*[[Serine hydroxymethyltransferase 3D structures|Serine hydroxymethyltransferase 3D structures]]
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== References ==
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==About this Structure==
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<references/>
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1CJ0 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CJ0 OCA].
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__TOC__
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</StructureSection>
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==Reference==
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[[Category: Large Structures]]
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Crystal structure of rabbit cytosolic serine hydroxymethyltransferase at 2.8 A resolution: mechanistic implications., Scarsdale JN, Kazanina G, Radaev S, Schirch V, Wright HT, Biochemistry. 1999 Jun 29;38(26):8347-58. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10387080 10387080]
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[[Category: Oryctolagus cuniculus]]
[[Category: Oryctolagus cuniculus]]
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[[Category: Single protein]]
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[[Category: Kazanina G]]
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[[Category: Kazanina, G.]]
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[[Category: Radaev S]]
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[[Category: Radaev, S.]]
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[[Category: Scarsdale JN]]
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[[Category: Scarsdale, J N.]]
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[[Category: Schirch V]]
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[[Category: Schirch, V.]]
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[[Category: Wright HT]]
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[[Category: Wright, H T.]]
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[[Category: PLP]]
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[[Category: 1 carbon metabolism]]
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[[Category: hydroxymethyl transferase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 23 11:23:12 2008''
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Current revision

CRYSTAL STRUCTURE OF RABBIT CYTOSOLIC SERINE HYDROXYMETHYLTRANSFERASE AT 2.8 ANGSTROM RESOLUTION

PDB ID 1cj0

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