1is5

Ligand free Congerin II

spinqualitylabelsall models 1is5, resolution 2.00Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1is5 is a 1 chain structure with sequence from Anguilla myriaster. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Related: 1c1f, 1is3, 1is4, 1is6 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function [LEG2_CONMY] This protein binds beta-galactoside. Its physiological function is not yet known. 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 The crystal structure of congerin II, a galectin family lectin from conger eel, was determined at 1.45A resolution. The previously determined structure of its isoform, congerin I, had revealed a fold evolution via strand swap; however, the structure of congerin II described here resembles other prototype galectins. A comparison of the two congerin genes with that of several other galectins suggests acceralated evolution of both congerin genes following gene duplication. The presence of a Mes (2-[N-morpholino]ethanesulfonic acid) molecule near the carbohydrate-binding site in the crystal structure points to the possibility of an additional binding site in congerin II. The binding site consists of a group of residues that had been replaced following gene duplication suggesting that the binding site was built under selective pressure. Congerin II may be a protein specialized for biological defense with an affinity for target carbohydrates on parasites' cell surface. Crystal structure of a conger eel galectin (congerin II) at 1.45A resolution: implication for the accelerated evolution of a new ligand-binding site following gene duplication.,Shirai T, Matsui Y, Shionyu-Mitsuyama C, Yamane T, Kamiya H, Ishii C, Ogawa T, Muramoto K J Mol Biol. 2002 Aug 30;321(5):879-89. PMID:12206768 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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