Abstract
Sialyltransferase is an enzyme that transfers the sialic acid moiety from cytidine-5-monophospho-N-acetylneuraminic acid (CMP-NeuAc) to the carbohydrate group of various glycoproteins. These glycoproteins are involved in inflammation, embryogenesis, immune defence and metastasis of cancer cells by cell-cell interactions or cell-matrix interactions. The alpha-2,6-sialyltransferase PM0188 from Pasteurella multocida was purified using affinity-column chromatographic methods and crystallized using the hanging-drop vapour-diffusion method at 293 K. MAD data were collected to 1.9 A resolution from an SeMet-substituted crystal. The crystal belongs to space group P2(1), with unit-cell parameters a = 52.9, b = 61.0, c = 64.6 A, alpha = gamma = 90, beta = 112.3 degrees. Assuming the presence of one molecule in the asymmetric unit, the solvent content is estimated to be about 45%.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Bacterial Proteins / antagonists & inhibitors
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Bacterial Proteins / chemistry*
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Bacterial Proteins / isolation & purification
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Chromatography, Affinity
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Crystallization
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Crystallography, X-Ray
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Cytidine Monophosphate N-Acetylneuraminic Acid / chemistry
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Cytidine Monophosphate N-Acetylneuraminic Acid / metabolism
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Pasteurella multocida / enzymology*
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Recombinant Proteins / antagonists & inhibitors
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Recombinant Proteins / chemistry
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Recombinant Proteins / isolation & purification
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Sialyltransferases / antagonists & inhibitors
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Sialyltransferases / chemistry*
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Sialyltransferases / isolation & purification
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Solvents
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beta-D-Galactoside alpha 2-6-Sialyltransferase
Substances
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Bacterial Proteins
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Recombinant Proteins
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Solvents
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Cytidine Monophosphate N-Acetylneuraminic Acid
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Sialyltransferases
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beta-D-Galactoside alpha 2-6-Sialyltransferase