1mdy

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[[Image:1mdy.gif|left|200px]]<br /><applet load="1mdy" size="350" color="white" frame="true" align="right" spinBox="true"
 
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caption="1mdy, resolution 2.800&Aring;" />
 
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'''CRYSTAL STRUCTURE OF MYOD BHLH DOMAIN BOUND TO DNA: PERSPECTIVES ON DNA RECOGNITION AND IMPLICATIONS FOR TRANSCRIPTIONAL ACTIVATION'''<br />
 
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==Overview==
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==CRYSTAL STRUCTURE OF MYOD BHLH DOMAIN BOUND TO DNA: PERSPECTIVES ON DNA RECOGNITION AND IMPLICATIONS FOR TRANSCRIPTIONAL ACTIVATION==
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The crystal structure of a MyoD basic-helix-loop-helix (bHLH) domain-DNA complex has been solved and refined at 2.8 A resolution. This structure proves that bHLH and bHLH-leucine zipper (bHLH-ZIP) proteins are remarkably similar; it helps us understand subtle differences in binding preferences for these proteins; and it has surprising implications for our understanding of transcription. Specifically, Ala-114 and Thr-115, which are required for positive control in the myogenic proteins, are buried at the protein-DNA interface. These residues are not available for direct protein-protein contacts, but they may determine the conformation of Arg-111. Comparisons with Max suggest that the conformation of this arginine, which is different in the two structures, may play an important role in myogenic transcription.
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<StructureSection load='1mdy' size='340' side='right'caption='[[1mdy]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
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== Structural highlights ==
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==About this Structure==
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<table><tr><td colspan='2'>[[1mdy]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1MDY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1MDY FirstGlance]. <br>
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1MDY is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1MDY OCA].
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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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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1mdy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1mdy OCA], [https://pdbe.org/1mdy PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1mdy RCSB], [https://www.ebi.ac.uk/pdbsum/1mdy PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1mdy ProSAT]</span></td></tr>
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==Reference==
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</table>
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Crystal structure of MyoD bHLH domain-DNA complex: perspectives on DNA recognition and implications for transcriptional activation., Ma PC, Rould MA, Weintraub H, Pabo CO, Cell. 1994 May 6;77(3):451-9. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=8181063 8181063]
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== Function ==
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[https://www.uniprot.org/uniprot/MYOD1_MOUSE MYOD1_MOUSE] Involved in muscle differentiation (myogenic factor). Induces fibroblasts to differentiate into myoblasts. Activates muscle-specific promoters. Interacts with and is inhibited by the twist protein. This interaction probably involves the basic domains of both proteins.<ref>PMID:3175662</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/md/1mdy_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=1mdy ConSurf].
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<div style="clear:both"></div>
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Large Structures]]
[[Category: Mus musculus]]
[[Category: Mus musculus]]
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[[Category: Single protein]]
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[[Category: Ma PCM]]
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[[Category: Ma, P C.M.]]
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[[Category: Pabo CO]]
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[[Category: Pabo, C O.]]
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[[Category: Rould MA]]
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[[Category: Rould, M A.]]
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[[Category: Weintraub H]]
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[[Category: Weintraub, H.]]
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[[Category: protein-dna complex]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 13:54:16 2008''
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Current revision

CRYSTAL STRUCTURE OF MYOD BHLH DOMAIN BOUND TO DNA: PERSPECTIVES ON DNA RECOGNITION AND IMPLICATIONS FOR TRANSCRIPTIONAL ACTIVATION

PDB ID 1mdy

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