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| | <StructureSection load='4rwt' size='340' side='right'caption='[[4rwt]], [[Resolution|resolution]] 2.98Å' scene=''> | | <StructureSection load='4rwt' size='340' side='right'caption='[[4rwt]], [[Resolution|resolution]] 2.98Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[4rwt]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Drome Drome] and [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4RWT OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4RWT FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[4rwt]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster] and [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4RWT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4RWT FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ANP:PHOSPHOAMINOPHOSPHONIC+ACID-ADENYLATE+ESTER'>ANP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> | + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ANP:PHOSPHOAMINOPHOSPHONIC+ACID-ADENYLATE+ESTER'>ANP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Act5C, CG4027 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=7227 DROME]), LMOD2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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=4rwt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4rwt OCA], [https://pdbe.org/4rwt PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4rwt RCSB], [https://www.ebi.ac.uk/pdbsum/4rwt PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4rwt ProSAT]</span></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=4rwt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4rwt OCA], [http://pdbe.org/4rwt PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4rwt RCSB], [http://www.ebi.ac.uk/pdbsum/4rwt PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4rwt ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/ACT1_DROME ACT1_DROME]] Actins are highly conserved proteins that are involved in various types of cell motility and are ubiquitously expressed in all eukaryotic cells. Multiple isoforms are involved in various cellular functions such as cytoskeleton structure, cell mobility, chromosome movement and muscle contraction. [[http://www.uniprot.org/uniprot/LMOD2_HUMAN LMOD2_HUMAN]] Increases the rate of actin polymerization (PubMed:25250574).<ref>PMID:25250574</ref> | + | [https://www.uniprot.org/uniprot/ACT1_DROME ACT1_DROME] Actins are highly conserved proteins that are involved in various types of cell motility and are ubiquitously expressed in all eukaryotic cells. Multiple isoforms are involved in various cellular functions such as cytoskeleton structure, cell mobility, chromosome movement and muscle contraction. |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Drome]] | + | [[Category: Drosophila melanogaster]] |
| - | [[Category: Human]] | + | [[Category: Homo sapiens]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Chen, X]] | + | [[Category: Chen X]] |
| - | [[Category: Ni, F]] | + | [[Category: Ni F]] |
| - | [[Category: Wang, Q]] | + | [[Category: Wang Q]] |
| - | [[Category: Actin]]
| + | |
| - | [[Category: Actin nucleation]]
| + | |
| - | [[Category: Leucine rich region]]
| + | |
| - | [[Category: Structural protein]]
| + | |
| Structural highlights
Function
ACT1_DROME Actins are highly conserved proteins that are involved in various types of cell motility and are ubiquitously expressed in all eukaryotic cells. Multiple isoforms are involved in various cellular functions such as cytoskeleton structure, cell mobility, chromosome movement and muscle contraction.
Publication Abstract from PubMed
Leiomodin (Lmod) is a class of potent tandem-G-actin-binding nucleators in muscle cells. Lmod mutations, deletion, or instability are linked to lethal nemaline myopathy. However, the lack of high-resolution structures of Lmod nucleators in action severely hampered our understanding of their essential cellular functions. Here we report the crystal structure of the actin-Lmod2162-495 nucleus. The structure contains two actin subunits connected by one Lmod2162-495 molecule in a non-filament-like conformation. Complementary functional studies suggest that the binding of Lmod2 stimulates ATP hydrolysis and accelerates actin nucleation and polymerization. The high level of conservation among Lmod proteins in sequence and functions suggests that the mechanistic insights of human Lmod2 uncovered here may aid in a molecular understanding of other Lmod proteins. Furthermore, our structural and mechanistic studies unraveled a previously unrecognized level of regulation in mammalian signal transduction mediated by certain tandem-G-actin-binding nucleators.
Mechanisms of leiomodin 2-mediated regulation of actin filament in muscle cells.,Chen X, Ni F, Kondrashkina E, Ma J, Wang Q Proc Natl Acad Sci U S A. 2015 Oct 13;112(41):12687-92. doi:, 10.1073/pnas.1512464112. Epub 2015 Sep 28. PMID:26417072[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Chen X, Ni F, Kondrashkina E, Ma J, Wang Q. Mechanisms of leiomodin 2-mediated regulation of actin filament in muscle cells. Proc Natl Acad Sci U S A. 2015 Oct 13;112(41):12687-92. doi:, 10.1073/pnas.1512464112. Epub 2015 Sep 28. PMID:26417072 doi:http://dx.doi.org/10.1073/pnas.1512464112
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