2FLJ

Fatty acid binding protein from locust flight muscle in complex with oleate


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 26 
  • Conformers Submitted: 25 
  • Selection Criteria: last MD steps 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Fatty-acid-binding protein from the flight muscle of Locusta migratoria: evolutionary variations in fatty acid binding.

Lucke, C.Qiao, Y.van Moerkerk, H.T.Veerkamp, J.H.Hamilton, J.A.

(2006) Biochemistry 45: 6296-6305

  • DOI: https://doi.org/10.1021/bi060224f
  • Primary Citation of Related Structures:  
    2FLJ

  • PubMed Abstract: 

    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.


  • Organizational Affiliation

    Max Planck Research Unit for Enzymology of Protein Folding, Weinbergweg 22, D-06120 Halle (Saale), Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Fatty acid-binding protein134Locusta migratoriaMutation(s): 0 
UniProt
Find proteins for P41509 (Locusta migratoria)
Explore P41509 
Go to UniProtKB:  P41509
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP41509
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
OLA
Query on OLA

Download Ideal Coordinates CCD File 
B [auth A]OLEIC ACID
C18 H34 O2
ZQPPMHVWECSIRJ-KTKRTIGZSA-N
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 26 
  • Conformers Submitted: 25 
  • Selection Criteria: last MD steps 

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-05-23
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-03-09
    Changes: Data collection, Database references, Derived calculations
  • Version 1.4: 2024-05-29
    Changes: Data collection