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2.1.1.132: precorrin-6B C5,15-methyltransferase (decarboxylating)

This is an abbreviated version!
For detailed information about precorrin-6B C5,15-methyltransferase (decarboxylating), go to the full flat file.

Reaction

2 S-adenosyl-L-methionine +

precorrin-6B
= 2 S-adenosyl-L-homocysteine +
precorrin-8X
+
CO2

Synonyms

CobL, GenBank L12005-derived protein, Genbank L12006-derived protein, GenBank U67594-derived protein GI 1500413, Gene cbiE precorrin 6y methylase, Gene cbiT precorrin methylase, Methyltransferase precorrin 6y (Salmonella typhimurium strain LT2 gene cbiE), methyltransferase, precorrin 6y, Methyltransferase, precorrin 6y (Methanococcus jannaschii), Methyltransferase, precorrin 6y (Salmonella typhimurium strain LT2 gene cbiT), Precorrhin-6y methyltransferase, Precorrin-6 methyltransferase, Precorrin-6Y methylase, precorrin-6y methyltransferase, precorrin-8w decarboxylase, Protein (Salmonella typhimurium clone pJO gene cbiE reduced), Protein (Salmonella typhimurium clone pJO26 gene cbiT reduced)

ECTree

     2 Transferases
         2.1 Transferring one-carbon groups
             2.1.1 Methyltransferases
                2.1.1.132 precorrin-6B C5,15-methyltransferase (decarboxylating)

Crystallization

Crystallization on EC 2.1.1.132 - precorrin-6B C5,15-methyltransferase (decarboxylating)

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CRYSTALLIZATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
purified recombinant apo-enzyme CbiT or in complex with S-adenosyl-L-methionine, hanging drop vapour diffusion method, 25°C, for the apo-enzyme: 5-10 mg/ml protein in 10% w/v PEG 8000, 100 mM MgCl2, and 5 mM Tric-HCl, pH 7.5, 0.002 ml equilibrated against 1 ml of well solution containing 16-22% PEG 8000, 0.2 M MgCl2, 10 mM Tris-HCl, pH 7.5, crystals appear after 1 day, for the binary complex: 1-2 mg/ml protein in 0.5 mM S-adenosyl-L-methionine, 0.1-0.2% PEG 8000, 50 mM MgCl2, 2.5 mM Tris-HCl, pH 7.5, 0.004 ml equilibrated against 1 ml of well solution containing 0.2-0.4% PEG 8000, 0.2 M MgCl2, and 5 mM Tris-HCl, pH 7.5, cryoprotection by soaking in 25% PEG 8000, 0.2 M MgCl2, and glycerol up to 25% w/v, freezing in liquid propane, X-ray diffraction structure determination and analysis at 1.9 A resolution, modeling
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