View source for 1ksr

==THE REPEATING SEGMENTS OF THE F-ACTIN CROSS-LINKING GELATION FACTOR (ABP-120) HAVE AN IMMUNOGLOBULIN FOLD, NMR, 20 STRUCTURES==
<StructureSection load='1ksr' size='340' side='right' caption='[[1ksr]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1ksr]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_11735 Atcc 11735]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1KSR OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1KSR FirstGlance]. <br>
</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ABPC ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=44689 ATCC 11735])</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=1ksr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ksr OCA], [http://pdbe.org/1ksr PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1ksr RCSB], [http://www.ebi.ac.uk/pdbsum/1ksr PDBsum]</span></td></tr>
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== Function ==
[[http://www.uniprot.org/uniprot/GELA_DICDI GELA_DICDI]] F-actin cross-linking protein. 
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ks/1ksr_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</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=1ksr ConSurf].
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== Publication Abstract from PubMed ==
The 120,000 M(r) gelation factor and alpha-actinin are among the most abundant F-actin cross-linking proteins in Dictyostelium discoideum. Both molecules are rod-shaped homodimers. Each monomer chain is comprised of an actin-binding domain and a rod domain. The rod domain of the gelation factor consists of six 100-residue repetitive segments with high internal homology. We have now determined the three-dimensional structure of segment 4 of the rod domain of the gelation factor from D. discoideum using NMR spectroscopy. The segment consists of seven beta-sheets arranged in an immunoglobulin-like (Ig) fold. This is completely different from the alpha-actinin rod domain which consists of four spectrin-like alpha-helical segments. The gelation factor is the first example of an Ig-fold found in an actin-binding protein. Two highly homologous actin-binding proteins from human with similar sequences to the gelation factor, filamin and a 280,000 M(r) actin-binding protein (ABP-280), share conserved residues that form the core of the gelation factor repetitive segment structure. Thus, the segment 4 structure should be common to this subfamily of the spectrin superfamily. The structure of segment 4 together with previously published electron microscopy data, provide an explanation for the dimerization of the whole gelation factor molecule.

The repeating segments of the F-actin cross-linking gelation factor (ABP-120) have an immunoglobulin-like fold.,Fucini P, Renner C, Herberhold C, Noegel AA, Holak TA Nat Struct Biol. 1997 Mar;4(3):223-30. PMID:9164464<ref>PMID:9164464</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 1ksr" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Atcc 11735]]
[[Category: Fucini, P]]
[[Category: Herberhold, C]]
[[Category: Holak, T A]]
[[Category: Noegel, A A]]
[[Category: Renner, C]]
[[Category: Abp-120]]
[[Category: Actin binding protein]]
[[Category: Gelation factor]]
[[Category: Immunoglobulin]]