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2.1.1.196: cobalt-precorrin-6B (C15)-methyltransferase [decarboxylating]

This is an abbreviated version!
For detailed information about cobalt-precorrin-6B (C15)-methyltransferase [decarboxylating], go to the full flat file.

Reaction

cobalt-precorrin-6B
+
S-adenosyl-L-methionine
+
H+
=
cobalt-precorrin-7
+
S-adenosyl-L-homocysteine
+
CO2

Synonyms

CbiE, CbiT

ECTree

     2 Transferases
         2.1 Transferring one-carbon groups
             2.1.1 Methyltransferases
                2.1.1.196 cobalt-precorrin-6B (C15)-methyltransferase [decarboxylating]

Crystallization

Crystallization on EC 2.1.1.196 - cobalt-precorrin-6B (C15)-methyltransferase [decarboxylating]

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CRYSTALLIZATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
homotetrameric apo form of CbiT crystallized in several space groups, to about 2.5 A resolution, and in complex with S-adenosyl-L-homocysteine, to 1.9 A resolution. The protein shows structural similarity to Rossmann-like S-adenosyl-methionine-dependent methyltransferases, and the cocrystal structure shows that it binds S-adenosyl-methionine in standard geometry near a binding pocket that can accommodate a precorrin substrate. CbiT probably functions as a precorrin methyltransferase