_EC 2.1.1.271 Cobalt-precorrin-4 methyltransferase. 2 PDB entries  
EC 2.-.-.- Transferases. [17,949 PDB entries]
EC 2.1.-.- Transferring one-carbon groups. [1,711 PDB entries]
EC 2.1.1.- Methyltransferases. [1,381 PDB entries]
EC 2.1.1.271 Cobalt-precorrin-4 methyltransferase. [2 PDB entries]    
1cbf

Reaction: S-adenosyl-L-methionine + cobalt-precorrin-4 = S-adenosyl-L-homocysteine + cobalt-precorrin-5A.
 


S-adenosyl-L-methionine
+
cobalt-precorrin-4
=
S-adenosyl-L-homocysteine
+
cobalt-precorrin-5A
Molecule diagrams generated from .mol files obtained from the KEGG ftp site.

Comments: Part of the anaerobic route to adenosylcobalamin.
Links:   [IntEnz]   [ExPASy]   [KEGG]  

There are 2 PDB entries in enzyme class E.C.2.1.1.271

  PDB code Protein
1cbf
The x-ray structure of a cobalamin biosynthetic enzyme, coba precorrin-4 methyltransferase, cbif
Source: Bacillus megaterium. Organism_taxid: 1404. Cell_line: bl21. Atcc: dsm 509. Collection: dsm 509. Gene: cbif. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (239 residues) CATH domains: 3.40.1010.10 3.30.950.10
2cbf
The x-ray structure of a cobalamin biosynthetic enzyme, coba precorrin-4 methyltransferase, cbif, from bacillus megateri the his-tag cleaved off
Source: Bacillus megaterium. Organism_taxid: 1404. Cell_line: bl21. Atcc: dsm 509. Collection: dsm 509. Gene: cbif. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (234 residues) CATH domains: 3.40.1010.10 3.30.950.10