2bit

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[[Image:2bit.gif|left|200px]]
 
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==Crystal structure of human cyclophilin D at 1.7 A resolution==
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The line below this paragraph, containing "STRUCTURE_2bit", creates the "Structure Box" on the page.
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<StructureSection load='2bit' size='340' side='right'caption='[[2bit]], [[Resolution|resolution]] 1.71&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'>[[2bit]] 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=2BIT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2BIT 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]] 1.71&#8491;</td></tr>
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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=2bit FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2bit OCA], [https://pdbe.org/2bit PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2bit RCSB], [https://www.ebi.ac.uk/pdbsum/2bit PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2bit ProSAT]</span></td></tr>
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{{STRUCTURE_2bit| PDB=2bit | SCENE= }}
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/PPIF_HUMAN PPIF_HUMAN] PPIases accelerate the folding of proteins. It catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides. Involved in regulation of the mitochondrial permeability transition pore (mPTP). It is proposed that its association with the mPTP is masking a binding site for inhibiting inorganic phosphate (Pi) and promotes the open probablity of the mPTP leading to apoptosis or necrosis; the requirement of the PPIase activity for this function is debated. In cooperation with mitochondrial TP53 is involved in activating oxidative stress-induced necrosis. Involved in modulation of mitochondrial membrane F(1)F(0) ATP synthase activity and regulation of mitochondrial matrix adenine nucleotide levels. Has anti-apoptotic activity independently of mPTP and in cooperation with BCL2 inhibits cytochrome c-dependent apoptosis.<ref>PMID:19228691</ref> <ref>PMID:22726440</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/bi/2bit_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=2bit 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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In the pharmaceutical industry, knowledge of the three-dimensional structure of a specific target facilitates the drug-discovery process. Despite possessing favoured analytical properties such as high purity and monodispersion in light scattering, some proteins are not capable of forming crystals suitable for X-ray analysis. Cyclophilin D, an isoform of cyclophilin that is expressed in the mitochondria, was selected as a drug target for the treatment of cardiac disorders. As the wild-type enzyme defied all attempts at crystallization, protein engineering on the enzyme surface was performed. The K133I mutant gave crystals that diffracted to 1.7 A resolution using in-house X-ray facilities and were suitable for soaking experiments. The crystals were very robust and diffraction was maintained after soaking in 25% DMSO solution: excellent conditions for the rapid analysis of complex structures including crystallographic fragment screening.
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'''CRYSTAL STRUCTURE OF HUMAN CYCLOPHILIN D AT 1.7 A RESOLUTION'''
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Crystal engineering yields crystals of cyclophilin D diffracting to 1.7 A resolution.,Schlatter D, Thoma R, Kung E, Stihle M, Muller F, Borroni E, Cesura A, Hennig M Acta Crystallogr D Biol Crystallogr. 2005 May;61(Pt 5):513-9. Epub 2005, Apr 20. PMID:15858260<ref>PMID:15858260</ref>
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==Overview==
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In the pharmaceutical industry, knowledge of the three-dimensional structure of a specific target facilitates the drug-discovery process. Despite possessing favoured analytical properties such as high purity and monodispersion in light scattering, some proteins are not capable of forming crystals suitable for X-ray analysis. Cyclophilin D, an isoform of cyclophilin that is expressed in the mitochondria, was selected as a drug target for the treatment of cardiac disorders. As the wild-type enzyme defied all attempts at crystallization, protein engineering on the enzyme surface was performed. The K133I mutant gave crystals that diffracted to 1.7 A resolution using in-house X-ray facilities and were suitable for soaking experiments. The crystals were very robust and diffraction was maintained after soaking in 25% DMSO solution: excellent conditions for the rapid analysis of complex structures including crystallographic fragment screening.
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==About this Structure==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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2BIT 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=2BIT OCA].
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</div>
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<div class="pdbe-citations 2bit" style="background-color:#fffaf0;"></div>
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==Reference==
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==See Also==
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Crystal engineering yields crystals of cyclophilin D diffracting to 1.7 A resolution., Schlatter D, Thoma R, Kung E, Stihle M, Muller F, Borroni E, Cesura A, Hennig M, Acta Crystallogr D Biol Crystallogr. 2005 May;61(Pt 5):513-9. Epub 2005, Apr 20. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15858260 15858260]
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*[[Cyclophilin 3D structures|Cyclophilin 3D structures]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[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: Hennig M]]
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[[Category: Hennig, M.]]
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[[Category: Schlatter D]]
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[[Category: Schlatter, D.]]
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[[Category: Stihle M]]
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[[Category: Stihle, M.]]
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[[Category: Thoma R]]
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[[Category: Thoma, R.]]
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[[Category: Cis-tran-isomerization]]
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[[Category: Crystal engineering]]
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[[Category: Human]]
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[[Category: Isomerase]]
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[[Category: Mitochondrial protein]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 20:21:00 2008''
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Current revision

Crystal structure of human cyclophilin D at 1.7 A resolution

PDB ID 2bit

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