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1cy5

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[[Image:1cy5.gif|left|200px]]
 
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{{Structure
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==CRYSTAL STRUCTURE OF THE APAF-1 CARD==
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|PDB= 1cy5 |SIZE=350|CAPTION= <scene name='initialview01'>1cy5</scene>, resolution 1.30&Aring;
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<StructureSection load='1cy5' size='340' side='right'caption='[[1cy5]], [[Resolution|resolution]] 1.30&Aring;' scene=''>
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|SITE=
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== Structural highlights ==
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|LIGAND= <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene> and <scene name='pdbligand=BME:BETA-MERCAPTOETHANOL'>BME</scene>
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<table><tr><td colspan='2'>[[1cy5]] 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=1CY5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1CY5 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]] 1.3&#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=BME:BETA-MERCAPTOETHANOL'>BME</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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=1cy5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1cy5 OCA], [https://pdbe.org/1cy5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1cy5 RCSB], [https://www.ebi.ac.uk/pdbsum/1cy5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1cy5 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/APAF_HUMAN APAF_HUMAN] Oligomeric Apaf-1 mediates the cytochrome c-dependent autocatalytic activation of pro-caspase-9 (Apaf-3), leading to the activation of caspase-3 and apoptosis. This activation requires ATP. Isoform 6 is less effective in inducing apoptosis.<ref>PMID:10393175</ref> <ref>PMID:12804598</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/cy/1cy5_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=1cy5 ConSurf].
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<div style="clear:both"></div>
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'''CRYSTAL STRUCTURE OF THE APAF-1 CARD'''
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==See Also==
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*[[Apoptotic protease-activating factor-1 3D structures|Apoptotic protease-activating factor-1 3D structures]]
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== References ==
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==Overview==
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<references/>
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The caspase recruitment domain (CARD) of Apaf-1 binds to the CARD of caspase-9 to trigger a proteolytic cascade that leads to apoptotic cell death. We report the crystal structure of the Apaf-1 CARD at 1. 3 A resolution, solved in a two-element multiwavelength anomalous dispersion (MAD) X-ray diffraction experiment. This CARD adopts a six-helix bundle fold with Greek key topology surrounding an extensive hydrophobic core. This fold, which we call the "death fold", is found in other domains that mediate interactions in apoptotic signaling despite very low sequence identity. From a structure-based alignment, we identify conserved patterns that characterize the death fold and its subclasses. Like the Ig-fold, it provides a rigid structural scaffold upon which diverse recognition surfaces are assembled.
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__TOC__
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</StructureSection>
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==About this Structure==
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1CY5 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=1CY5 OCA].
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==Reference==
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Crystal structure of Apaf-1 caspase recruitment domain: an alpha-helical Greek key fold for apoptotic signaling., Vaughn DE, Rodriguez J, Lazebnik Y, Joshua-Tor L, J Mol Biol. 1999 Oct 29;293(3):439-47. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10543941 10543941]
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[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Joshua-Tor, L.]]
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[[Category: Joshua-Tor L]]
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[[Category: Vaughn, D E.]]
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[[Category: Vaughn DE]]
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[[Category: BME]]
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[[Category: ZN]]
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[[Category: apoptosis]]
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[[Category: caspase recruitment domain]]
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[[Category: death fold]]
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[[Category: greek key topology]]
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[[Category: six alpha-helix bundle]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 10:30:20 2008''
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Current revision

CRYSTAL STRUCTURE OF THE APAF-1 CARD

PDB ID 1cy5

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