1mou | pdb_00001mou

Crystal structure of Coral pigment

spinqualitylabelsall models 1mou, resolution 2.20Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1mou is a 1 chain structure with sequence from Montipora efflorescens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: IOD NonStd Res: CRQ Related: 1mov Resources: FirstGlance, OCA, RCSB, PDBsum 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 Reef-building corals contain host pigments, termed pocilloporins, that function to regulate the light environment of their resident microalgae by acting as a photoprotectant in excessive sunlight. We have determined the crystal structure of an intensely blue, nonfluorescent pocilloporin to 2.2 A resolution and a genetically engineered fluorescent variant to 2.4 A resolution. The pocilloporin chromophore structure adopts a markedly different conformation in comparison with the DsRed chromophore, despite the chromophore sequences (Gln-Tyr-Gly) being identical; the tyrosine ring of the pocilloporin chromophore is noncoplanar and in the trans configuration. Furthermore, the fluorescent variant adopted a noncoplanar chromophore conformation. The data presented here demonstrates that the conformation of the chromophore is highly dependent on its immediate environment. The 2.2 A crystal structure of a pocilloporin pigment reveals a nonplanar chromophore conformation.,Prescott M, Ling M, Beddoe T, Oakley AJ, Dove S, Hoegh-Guldberg O, Devenish RJ, Rossjohn J Structure. 2003 Mar;11(3):275-84. PMID:12623015 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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