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2CBF

THE X-RAY STRUCTURE OF A COBALAMIN BIOSYNTHETIC ENZYME, COBALT PRECORRIN-4 METHYLTRANSFERASE, CBIF, FROM BACILLUS MEGATERIUM, WITH THE HIS-TAG CLEAVED OFF

Functional Information from GO Data
ChainGOidnamespacecontents
A0008168molecular_functionmethyltransferase activity
A0009236biological_processcobalamin biosynthetic process
A0016740molecular_functiontransferase activity
A0032259biological_processmethylation
A0046026molecular_functionprecorrin-4 C11-methyltransferase activity
Functional Information from PDB Data
site_idAC1
Number of Residues15
DetailsBINDING SITE FOR RESIDUE SAH A 300
ChainResidue
AMET106
ATHR131
ASER132
APHE183
ALEU184
AVAL210
ALYS212
AALA213
AGLN240
AALA241
AMET242
APRO30
ATHR101
AGLY102
AASP103

site_idFLP
Number of Residues4
DetailsTWO REGIONS CONTAIN SIGNIFICANTLY ALTERED LOCATIONS RELATIVE TO THE PO4-BOUND STRUCTURE.
ChainResidue
AALA53
AASP54
ASER55
ALEU79

site_idSAH
Number of Residues1
DetailsS-ADENOSYL-HOMOCYSTEINE BINDING SITE. CRYSTALS FORMED IN THE PRESENCE OF ADOMET OR ADOHCY.
ChainResidue
ASAH300

Functional Information from PROSITE/UniProt
site_idPS00839
Number of Residues15
DetailsSUMT_1 Uroporphyrin-III C-methyltransferase signature 1. IGAGPGdpdLITVKG
ChainResidueDetails
AILE26-GLY40

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PDB entries from 2025-06-18

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