Structure based on

Ideal structure
Name: co-5-methoxybenzimidazolylcobamide
Formula: C61 H86 N13 O15 CO1 P1
SMILES: [Co]234[N+]1=C5C(C(C1(C)C8=[N+]2C(=C(C7=[N+]3C(=CC6=[N+]4C(=C5C)C(C6CCC(=O)N)(C)CC(=O)N)C(C)(C7CCC(=O)N)C)C)C(C)(C8CC(=O)N)CCC(=O)NCC([OH-]P(=O)([O-])[OH-]C9C([O-])C(OC9CO)[N]%10C%11=C(N=C%10)C=C(C=C%11)OC)C)(C)CC(=O)N)CCC(=O)N
Spacial conformation based on PDB .
Also present on 1y80
RESIDUE   B1M    177
CONECT     CO      4 N21  N22  N23  N24 
CONECT      N21    3CO    C1   C4  
CONECT      N22    3CO    C6   C9  
CONECT      N23    3CO    C11  C14 
CONECT      N24    3CO    C16  C19 
CONECT      C1     4 N21  C2   C19  C20 
CONECT      C20    4 C1  1H20 2H20 3H20 
CONECT      C2     4 C1   C3   C25  C26 
CONECT      C25    4 C2  1H25 2H25 3H25 
CONECT      C26    4 C2   C27 1H26 2H26 
CONECT      C27    3 C26  O28  N29 
CONECT      O28    1 C27 
CONECT      N29    3 C27 1H29 2H29 
CONECT      C3     4 C2   C4   C30  H3  
CONECT      C30    4 C3   C31 1H30 2H30 
CONECT      C31    4 C30  C32 1H31 2H31 
CONECT      C32    3 C31  O34  N33 
CONECT      O34    1 C32 
CONECT      N33    3 C32 1H33 2H33 
CONECT      C4     3 N21  C3   C5  
CONECT      C5     3 C4   C6   C35 
CONECT      C35    4 C5  1H35 2H35 3H35 
CONECT      C6     3 N22  C5   C7  
CONECT      C7     4 C6   C8   C36  C37 
CONECT      C36    4 C7  1H36 2H36 3H36 
CONECT      C37    4 C7   C38 1H37 2H37 
CONECT      C38    3 C37  O39  N40 
CONECT      O39    1 C38 
CONECT      N40    3 C38 1H40 2H40 
CONECT      C8     4 C7   C9   C41  H8  
CONECT      C41    4 C8   C42 1H41 2H41 
CONECT      C42    4 C41  C43 1H42 2H42 
CONECT      C43    3 C42  O44  N45 
CONECT      O44    1 C43 
CONECT      N45    3 C43 1H45 2H45 
CONECT      C9     3 N22  C8   C10 
CONECT      C10    3 C9   C11  H10 
CONECT      C11    3 N23  C10  C12 
CONECT      C12    4 C11  C13  C46  C47 
CONECT      C46    4 C12 1H46 2H46 3H46 
CONECT      C47    4 C12 1H47 2H47 3H47 
CONECT      C13    4 C12  C14  C48  H13 
CONECT      C48    4 C13  C49 1H48 2H48 
CONECT      C49    4 C48  C50 1H49 2H49 
CONECT      C50    3 C49  O51  N52 
CONECT      O51    1 C50 
CONECT      N52    3 C50 1H52 2H52 
CONECT      C14    3 N23  C13  C15 
CONECT      C15    3 C14  C16  C53 
CONECT      C53    4 C15 1H53 2H53 3H53 
CONECT      C16    3 N24  C15  C17 
CONECT      C17    4 C16  C18  C54  C55 
CONECT      C54    4 C17 1H54 2H54 3H54 
CONECT      C55    4 C17  C56 1H55 2H55 
CONECT      C56    4 C55  C57 1H56 2H56 
CONECT      C57    3 C56  O58  N59 
CONECT      O58    1 C57 
CONECT      N59    3 C57  C1P  H59 
CONECT      C18    4 C17  C19  C60  H18 
CONECT      C60    4 C18  C61 1H60 2H60 
CONECT      C61    3 C60  O63  N62 
CONECT      O63    1 C61 
CONECT      N62    3 C61 1H62 2H62 
CONECT      C19    3 N24  C1   C18 
CONECT      C1P    4 N59  C2P 1H1P 2H1P 
CONECT      C2P    4 C1P  C3P  O3   H2P 
CONECT      C3P    4 C2P 1H3P 2H3P 3H3P 
CONECT      O3     2 C2P  P   
CONECT      O4     1 P   
CONECT      O5     2 P   5HOP 
CONECT      P      4 O3   O4   O5   O2  
CONECT      O2     2 P    C3R 
CONECT      C3R    4 O2   C2R  C4R  H3R 
CONECT      C2R    4 C3R  C1R  O7R  H2R 
CONECT      O7R    2 C2R 7HOR 
CONECT      C1R    4 C2R  O6R  N1B  H1R 
CONECT      O6R    2 C1R  C4R 
CONECT      C4R    4 C3R  O6R  C5R  H4R 
CONECT      C5R    4 C4R  O8R 1H5R 2H5R 
CONECT      O8R    2 C5R 8HOR 
CONECT      N1B    3 C1R  C2B  C8B 
CONECT      C8B    3 N1B  C7B  C9B 
CONECT      C2B    3 N1B  N3B  H2B 
CONECT      N3B    2 C2B  C9B 
CONECT      C9B    3 C8B  N3B  C4B 
CONECT      C4B    3 C9B  C5B  H4B 
CONECT      C5B    3 C4B  C6B  O5M 
CONECT      C6B    3 C5B  H6B  C7B 
CONECT      C7B    3 C8B  C6B  H7B 
CONECT      O5M    2 C5B  C5O 
CONECT      C5O    4 O5M 1HO5 2HO5 3HO5 
CONECT     1H20    1 C20 
CONECT     2H20    1 C20 
CONECT     3H20    1 C20 
CONECT     1H25    1 C25 
CONECT     2H25    1 C25 
CONECT     3H25    1 C25 
CONECT     1H26    1 C26 
CONECT     2H26    1 C26 
CONECT     1H29    1 N29 
CONECT     2H29    1 N29 
CONECT      H3     1 C3  
CONECT     1H30    1 C30 
CONECT     2H30    1 C30 
CONECT     1H31    1 C31 
CONECT     2H31    1 C31 
CONECT     1H33    1 N33 
CONECT     2H33    1 N33 
CONECT     1H35    1 C35 
CONECT     2H35    1 C35 
CONECT     3H35    1 C35 
CONECT     1H36    1 C36 
CONECT     2H36    1 C36 
CONECT     3H36    1 C36 
CONECT     1H37    1 C37 
CONECT     2H37    1 C37 
CONECT     1H40    1 N40 
CONECT     2H40    1 N40 
CONECT      H8     1 C8  
CONECT     1H41    1 C41 
CONECT     2H41    1 C41 
CONECT     1H42    1 C42 
CONECT     2H42    1 C42 
CONECT     1H45    1 N45 
CONECT     2H45    1 N45 
CONECT      H10    1 C10 
CONECT     1H46    1 C46 
CONECT     2H46    1 C46 
CONECT     3H46    1 C46 
CONECT     1H47    1 C47 
CONECT     2H47    1 C47 
CONECT     3H47    1 C47 
CONECT      H13    1 C13 
CONECT     1H48    1 C48 
CONECT     2H48    1 C48 
CONECT     1H49    1 C49 
CONECT     2H49    1 C49 
CONECT     1H52    1 N52 
CONECT     2H52    1 N52 
CONECT     1H53    1 C53 
CONECT     2H53    1 C53 
CONECT     3H53    1 C53 
CONECT     1H54    1 C54 
CONECT     2H54    1 C54 
CONECT     3H54    1 C54 
CONECT     1H55    1 C55 
CONECT     2H55    1 C55 
CONECT     1H56    1 C56 
CONECT     2H56    1 C56 
CONECT      H59    1 N59 
CONECT      H18    1 C18 
CONECT     1H60    1 C60 
CONECT     2H60    1 C60 
CONECT     1H62    1 N62 
CONECT     2H62    1 N62 
CONECT     1H1P    1 C1P 
CONECT     2H1P    1 C1P 
CONECT      H2P    1 C2P 
CONECT     1H3P    1 C3P 
CONECT     2H3P    1 C3P 
CONECT     3H3P    1 C3P 
CONECT     5HOP    1 O5  
CONECT      H3R    1 C3R 
CONECT      H2R    1 C2R 
CONECT     7HOR    1 O7R 
CONECT      H1R    1 C1R 
CONECT      H4R    1 C4R 
CONECT     1H5R    1 C5R 
CONECT     2H5R    1 C5R 
CONECT     8HOR    1 O8R 
CONECT      H2B    1 C2B 
CONECT      H4B    1 C4B 
CONECT      H7B    1 C7B 
CONECT     1HO5    1 C5O 
CONECT     2HO5    1 C5O 
CONECT     3HO5    1 C5O 
CONECT      H6B    1 C6B 
END
HET    B1M            177
HETSYN     B1M FACTOR IIIM
HETNAM     B1M CO-5-METHOXYBENZIMIDAZOLYLCOBAMIDE
FORMUL      B1M    C61 H86 N13 O15 CO1 P1

This OCA MONOMER page
uses Jmol, developed by the Jmol Development Team (color reference)
OCA© by Jaime Prilusky, 1996-2004,2006,2010,2014
Bioinformatics Unit
Weizmann Institute of Science