2dg3

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[[Image:2dg3.gif|left|200px]]
 
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==Wildtype FK506-binding protein complexed with Rapamycin==
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The line below this paragraph, containing "STRUCTURE_2dg3", creates the "Structure Box" on the page.
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<StructureSection load='2dg3' size='340' side='right'caption='[[2dg3]], [[Resolution|resolution]] 1.70&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'>[[2dg3]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2DG3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2DG3 FirstGlance]. <br>
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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]] 1.7&#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=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=RAP:RAPAMYCIN+IMMUNOSUPPRESSANT+DRUG'>RAP</scene></td></tr>
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{{STRUCTURE_2dg3| PDB=2dg3 | 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=2dg3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2dg3 OCA], [https://pdbe.org/2dg3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2dg3 RCSB], [https://www.ebi.ac.uk/pdbsum/2dg3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2dg3 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/FKB1A_HUMAN FKB1A_HUMAN] Keeps in an inactive conformation TGFBR1, the TGF-beta type I serine/threonine kinase receptor, preventing TGF-beta receptor activation in absence of ligand. Recruites SMAD7 to ACVR1B which prevents the association of SMAD2 and SMAD3 with the activin receptor complex, thereby blocking the activin signal. May modulate the RYR1 calcium channel activity. PPIases accelerate the folding of proteins. It catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides.<ref>PMID:9233797</ref> <ref>PMID:16720724</ref>
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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/dg/2dg3_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=2dg3 ConSurf].
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<div style="clear:both"></div>
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'''Wildtype FK506-binding protein complexed with Rapamycin'''
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==See Also==
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*[[FKBP 3D structures|FKBP 3D structures]]
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== References ==
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==Overview==
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<references/>
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Tryptophan 59 forms the seat of the hydrophobic ligand-binding site in the small immunophilin FKBP12. Mutating this residue to phenylalanine or leucine stabilizes the protein by 2.72 and 2.35 kcal mol(-1), respectively. Here we report the stability data and 1.7 A resolution crystal structures of both mutant proteins, complexed with the immunosuppressant rapamycin. Both structures show a relatively large response to mutation involving a helical bulge at the mutation site and the loss of a hydrogen bond that anchors a nearby loop. The increased stability of the mutants is probably due to a combination of improved packing and an entropic gain at the mutation site. The structures are almost identical to that of wild-type FKBP12.6, an isoform of FKBP12 that differs by 18 residues, including Trp59, in its sequence. Therefore, the structural difference between the two isoforms can be attributed almost entirely to the identity of residue 59. It is likely that in FKBP12-ligand complexes Trp59 provides added binding energy at the active site at the expense of protein stability, a characteristic common to other proteins. FKBP12 associates with the ryanodine receptor in skeletal muscle (RyR1), while FKBP12.6 selectively binds the ryanodine receptor in cardiac muscle (RyR2). The structural response to mutation suggests that residue 59 contributes to the specificity of binding between FKBP12 isoforms and ryanodine receptors.
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__TOC__
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</StructureSection>
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==About this Structure==
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2DG3 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=2DG3 OCA].
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==Reference==
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Energetic and structural analysis of the role of tryptophan 59 in FKBP12., Fulton KF, Jackson SE, Buckle AM, Biochemistry. 2003 Mar 4;42(8):2364-72. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12600203 12600203]
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[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Peptidylprolyl isomerase]]
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[[Category: Large Structures]]
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[[Category: Single protein]]
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[[Category: Buckle AM]]
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[[Category: Buckle, A M.]]
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[[Category: Immunophilin]]
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[[Category: Isomerase]]
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[[Category: Rotamase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 00:21:17 2008''
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Current revision

Wildtype FK506-binding protein complexed with Rapamycin

PDB ID 2dg3

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