1tpf

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[[Image:1tpf.gif|left|200px]]
 
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==COMPARISON OF THE STRUCTURES AND THE CRYSTAL CONTACTS OF TRYPANOSOMAL TRIOSEPHOSPHATE ISOMERASE IN FOUR DIFFERENT CRYSTAL FORMS==
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The line below this paragraph, containing "STRUCTURE_1tpf", creates the "Structure Box" on the page.
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<StructureSection load='1tpf' size='340' side='right'caption='[[1tpf]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1tpf]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Trypanosoma_brucei_brucei Trypanosoma brucei brucei]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1TPF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1TPF FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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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]] 1.8&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=DMS:DIMETHYL+SULFOXIDE'>DMS</scene></td></tr>
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{{STRUCTURE_1tpf| PDB=1tpf | SCENE= }}
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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=1tpf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1tpf OCA], [https://pdbe.org/1tpf PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1tpf RCSB], [https://www.ebi.ac.uk/pdbsum/1tpf PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1tpf ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/TPIS_TRYBB TPIS_TRYBB]
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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/tp/1tpf_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=1tpf ConSurf].
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<div style="clear:both"></div>
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'''COMPARISON OF THE STRUCTURES AND THE CRYSTAL CONTACTS OF TRYPANOSOMAL TRIOSEPHOSPHATE ISOMERASE IN FOUR DIFFERENT CRYSTAL FORMS'''
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==See Also==
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*[[Triose phosphate isomerase 3D structures|Triose phosphate isomerase 3D structures]]
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__TOC__
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==Overview==
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</StructureSection>
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Triosephosphate isomerase (TIM) is a dimeric enzyme consisting of 2 identical subunits. Trypanosomal TIM can be crystallized in 4 different spacegroups: P2(1)2(1)2(1), C2(big cell), C2(small cell), and P1. The P1 crystal form only grows in the presence of 1.4 M DMSO; there are 2 DMSO binding sites per subunit. The structures have been refined at a resolution of 1.83 A, 2.10 A, 2.13 A, and 1.80 A, respectively. In the 4 different spacegroups the TIM subunit can be observed in the context of 7 different crystallographic environments. In the C2 cells, the dimer 2-fold axis coincides with a crystallographic 2-fold axis. The similarities and differences of the 7 subunits are discussed. In 6 subunits the flexible loop (loop 6) is open, whereas in the P2(1)2(1)2(1) cell, the flexible loop of subunit 2 is in an almost closed conformation. The crystal contacts in the 4 different crystal forms are predominantly generated by polar residues in loops. A statistical analysis of the residues involved in crystal contacts shows that, in particular, serines are frequently involved in these interactions; 19% of the exposed serines are involved in crystal contacts.
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[[Category: Large Structures]]
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==About this Structure==
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1TPF is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Trypanosoma_brucei_brucei Trypanosoma brucei brucei]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1TPF OCA].
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==Reference==
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Comparison of the structures and the crystal contacts of trypanosomal triosephosphate isomerase in four different crystal forms., Kishan KV, Zeelen JP, Noble ME, Borchert TV, Wierenga RK, Protein Sci. 1994 May;3(5):779-87. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/8061607 8061607]
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[[Category: Single protein]]
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[[Category: Triose-phosphate isomerase]]
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[[Category: Trypanosoma brucei brucei]]
[[Category: Trypanosoma brucei brucei]]
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[[Category: Kishan, K V.Radha.]]
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[[Category: Radha Kishan KV]]
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[[Category: Wierenga, R K.]]
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[[Category: Wierenga RK]]
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[[Category: Zeelen, J Ph.]]
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[[Category: Zeelen JPh]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 10:13:18 2008''
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Current revision

COMPARISON OF THE STRUCTURES AND THE CRYSTAL CONTACTS OF TRYPANOSOMAL TRIOSEPHOSPHATE ISOMERASE IN FOUR DIFFERENT CRYSTAL FORMS

PDB ID 1tpf

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