3cqa

Crystal structure of human fibroblast growth factor-1 with mutations Glu81Ala and Lys101Ala

spinqualitylabelsall models 3cqa, resolution 1.80Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 3cqa is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: FMT, SO4 Gene: FGF1, FGFA (Homo sapiens) Resources: FirstGlance, OCA, RCSB, PDBsum Function [FGF1_HUMAN] Plays an important role in the regulation of cell survival, cell division, angiogenesis, cell differentiation and cell migration. Functions as potent mitogen in vitro. 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 PubMed Large-volume protein crystals are a prerequisite for neutron diffraction studies and their production represents a bottleneck in obtaining neutron structures. Many protein crystals that permit the collection of high-resolution X-ray diffraction data are inappropriate for neutron diffraction owing to a plate-type morphology that limits the crystal volume. Human fibroblast growth factor 1 crystallizes in a plate morphology that yields atomic resolution X-ray diffraction data but has insufficient volume for neutron diffraction. The thin physical dimension has been identified as corresponding to the b cell edge and the X-ray structure identified a solvent-mediated crystal contact adjacent to position Glu81 that was hypothesized to limit efficient crystal growth in this dimension. In this report, a series of mutations at this crystal contact designed to both reduce side-chain entropy and replace the solvent-mediated interface with direct side-chain contacts are reported. The results suggest that improved crystal growth is achieved upon the introduction of direct crystal contacts, while little improvement is observed with side-chain entropy-reducing mutations alone. Engineering an improved crystal contact across a solvent-mediated interface of human fibroblast growth factor 1.,Meher AK, Blaber SI, Lee J, Honjo E, Kuroki R, Blaber M Acta Crystallogr Sect F Struct Biol Cryst Commun. 2009 Nov 1;65(Pt, 11):1136-40. Epub 2009 Oct 30. PMID:19923735 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Fibroblast growth factor

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