1alb
CRYSTAL STRUCTURE OF RECOMBINANT MURINE ADIPOCYTE LIPID-BINDING PROTEINCRYSTAL STRUCTURE OF RECOMBINANT MURINE ADIPOCYTE LIPID-BINDING PROTEIN
Structural highlights
Function[FABP4_MOUSE] Lipid transport protein in adipocytes. Binds both long chain fatty acids and retinoic acid. Delivers long-chain fatty acids and retinoic acid to their cognate receptors in the nucleus.[1] [2] [3] Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedAdipocyte lipid-binding protein (ALBP) is the adipocyte member of an intracellular hydrophobic ligand-binding protein family. ALBP is phosphorylated by the insulin receptor kinase upon insulin stimulation. The crystal structure of recombinant murine ALBP has been determined and refined to 2.5 A. The final R factor for the model is 0.18 with good canonical properties. Crystalline ALBP has a conformation which is essentially identical to that of intestinal fatty acid binding protein and myelin P2 protein. Although the crystal structure is of the apo- form, a cavity resembling that in other family members is present. It contains a number of bound and implied unbound water molecules and shows no large obvious portal to the external milieu. The cavity of ALBP, which by homology is the ligand-binding site, is formed by both polar and hydrophobic residues among which is tyrosine 19. Y19 is phosphorylated by the insulin receptor kinase as described in the accompanying paper [Buelt, M. K., Xu, Z., Banaszak, L. J., & Bernlohr, D. A. (1992) Biochemistry (following paper in this issue)]. By comparing ALBP with the earlier structural results on intestinal fatty acid binding protein, it is now possible to delineate conserved amino acids which help form the binding site in this family. Crystal structure of recombinant murine adipocyte lipid-binding protein.,Xu Z, Bernlohr DA, Banaszak LJ Biochemistry. 1992 Apr 7;31(13):3484-92. PMID:1554730[4] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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