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| ==Solution structure of CXC domain of MSL2== | | ==Solution structure of CXC domain of MSL2== |
| <StructureSection load='2lua' size='340' side='right' caption='[[2lua]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''> | | <StructureSection load='2lua' size='340' side='right'caption='[[2lua]]' scene=''> |
| == Structural highlights == | | == Structural highlights == |
| <table><tr><td colspan='2'>[[2lua]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Drome Drome]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2LUA OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2LUA FirstGlance]. <br> | | <table><tr><td colspan='2'>[[2lua]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2LUA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2LUA FirstGlance]. <br> |
| </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr> |
| <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">msl-2, CG3241 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=7227 DROME])</td></tr> | | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> |
| <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2lua FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2lua OCA], [http://pdbe.org/2lua PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2lua RCSB], [http://www.ebi.ac.uk/pdbsum/2lua PDBsum]</span></td></tr> | | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2lua FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2lua OCA], [https://pdbe.org/2lua PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2lua RCSB], [https://www.ebi.ac.uk/pdbsum/2lua PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2lua ProSAT]</span></td></tr> |
| </table> | | </table> |
| == Function == | | == Function == |
| [[http://www.uniprot.org/uniprot/MSL2_DROME MSL2_DROME]] The Msl proteins are essential for elevating transcription of the single X chromosome in the male (X chromosome dosage compensation). Msl-2 is required for translation and/or stability of msl-1 in males. In complex with msl-1, acts as an E3 ubiquitin ligase that promotes ubiquitination of histone H2B.<ref>PMID:21726816</ref> <ref>PMID:7588059</ref> <ref>PMID:7781064</ref> <ref>PMID:7796814</ref> | | [https://www.uniprot.org/uniprot/MSL2_DROME MSL2_DROME] The Msl proteins are essential for elevating transcription of the single X chromosome in the male (X chromosome dosage compensation). Msl-2 is required for translation and/or stability of msl-1 in males. In complex with msl-1, acts as an E3 ubiquitin ligase that promotes ubiquitination of histone H2B.<ref>PMID:21726816</ref> <ref>PMID:7588059</ref> <ref>PMID:7781064</ref> <ref>PMID:7796814</ref> |
| <div style="background-color:#fffaf0;">
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| == Publication Abstract from PubMed ==
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| The dosage compensation complex (DCC) binds to single X chromosomes in Drosophila males and increases the transcription level of X-linked genes by approximately twofold. Male-specific lethal 2 (MSL2) together with MSL1 mediates the initial recruitment of the DCC to high-affinity sites in the X chromosome. MSL2 contains a DNA-binding cysteine-rich CXC domain that is important for X targeting. In this study, we determined the solution structure of MSL2 CXC domain by NMR spectroscopy. We identified three zinc ions in the CXC domain and determined the metal-to-cysteine connectivities from (1)H-(113)Cd correlation experiments. The structure reveals an unusual zinc-cysteine cluster composed of three zinc ions coordinated by six terminal and three bridging cysteines. The CXC domain exhibits unexpected structural homology to pre-SET motifs of histone lysine methyltransferases, expanding the distribution and structural diversity of the CXC domain superfamily. Our findings provide novel structural insight into the evolution and function of CXC domains.
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| Solution Structure of MSL2 CXC Domain Reveals an Unusual Zn(3)Cys(9) Cluster and Similarity to Pre-SET Domains of Histone Lysine Methyltransferases.,Zheng S, Wang J, Feng Y, Wang J, Ye K PLoS One. 2012;7(9):e45437. doi: 10.1371/journal.pone.0045437. Epub 2012 Sep 20. PMID:23029009<ref>PMID:23029009</ref>
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| From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
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| </div>
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| <div class="pdbe-citations 2lua" style="background-color:#fffaf0;"></div>
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| == References == | | == References == |
| <references/> | | <references/> |
| __TOC__ | | __TOC__ |
| </StructureSection> | | </StructureSection> |
| [[Category: Drome]] | | [[Category: Drosophila melanogaster]] |
| [[Category: Feng, Y]] | | [[Category: Large Structures]] |
| [[Category: Wang, J]] | | [[Category: Feng Y]] |
| [[Category: Ye, K]] | | [[Category: Wang J]] |
| [[Category: Zheng, S]] | | [[Category: Ye K]] |
| [[Category: Dna binding protein]]
| | [[Category: Zheng S]] |
| [[Category: Metal binding]]
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