View source for 2flj


==Fatty acid binding protein from locust flight muscle in complex with oleate==
<StructureSection load='2flj' size='340' side='right'caption='[[2flj]]' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2flj]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Locusta_migratoria Locusta migratoria]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2FLJ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2FLJ FirstGlance]. <br>
</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='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=OLA:OLEIC+ACID'>OLA</scene></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=2flj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2flj OCA], [https://pdbe.org/2flj PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2flj RCSB], [https://www.ebi.ac.uk/pdbsum/2flj PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2flj ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/FABPM_LOCMI FABPM_LOCMI] Binds fatty acids in a 1:1 molar ratio.
== 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/fl/2flj_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=2flj ConSurf].
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== Publication Abstract from PubMed ==
Intracellular lipid-binding proteins have evolved from a common ancestral gene with the appearance of mitochondrial oxidation, to guarantee, for example, transport of fatty acids through the aqueous cytosol to their site of utilization. The mammalian forms of these lipid carriers are structurally well-characterized and have been categorized, on the basis of sequence similarities and several typical ligand-binding features, into four subfamilies. Only a single complex structure of an invertebrate fatty-acid-binding protein (FABP) has been reported to date, which reveals a unique ligand-binding arrangement yet unknown in vertebrate FABPs. In the present study, the structure of a second invertebrate FABP (locust muscle) complexed with a fatty acid has been determined on the basis of intermolecular NOE connectivities between the protein and the uniformly (13)C-enriched oleate ligand. The resulting ligand conformation, although resembling the closely related mammalian heart- and adipocyte-type FABPs, is characterized by certain binding features that differ significantly from the typical hairpin-turn ligand shapes of the latter forms. This is primarily due to an alanine-to-leucine substitution in locust FABPs that produces a steric hindrance for ligand binding. A comparison with an FABP from tobacco hornworm larvae furthermore demonstrates that certain amino acid substitutions that appear to be specific for invertebrates decidedly influence the binding arrangement inside the protein cavity. Hence, as a result of these evolutionary variations, invertebrate FABPs may display a much greater diversity in intracellular lipid binding than observed for the mammalian transport proteins, thus possibly providing new insights for the design of modified lipid carriers.

Fatty-acid-binding protein from the flight muscle of Locusta migratoria: evolutionary variations in fatty acid binding.,Lucke C, Qiao Y, van Moerkerk HT, Veerkamp JH, Hamilton JA Biochemistry. 2006 May 23;45(20):6296-305. PMID:16700541<ref>PMID:16700541</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 2flj" style="background-color:#fffaf0;"></div>

==See Also==
*[[Fatty acid-binding protein 3D structures|Fatty acid-binding protein 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Locusta migratoria]]
[[Category: Hamilton JA]]
[[Category: Luecke C]]
[[Category: Qiao Y]]
[[Category: Veerkamp JH]]
[[Category: Van Moerkerk HTB]]