Structure based on 7req

Ideal structure
Name: cobalamin
Formula: C62 H89 Co N13 O14 P
Weight: 1330.356
Spacial conformation based on PDB 7req.
Also present in other 104 PDB entries.
RESIDUE   B12    180
CONECT      CO     4 N21  N22  N23  N24 
CONECT      N21    3 CO   C1   C4  
CONECT      N22    3 CO   C6   C9  
CONECT      N23    3 CO   C11  C14 
CONECT      N24    3 CO   C16  C19 
CONECT      C1     4 N21  C20  C2   C19 
CONECT      C20    4 C1   H201 H202 H203
CONECT      C2     4 C1   C25  C26  C3  
CONECT      C25    4 C2   H251 H252 H253
CONECT      C26    4 C2   C27  H261 H262
CONECT      C27    3 C26  O28  N29 
CONECT      O28    1 C27 
CONECT      N29    3 C27  H291 H292
CONECT      C3     4 C2   C30  C4   H3  
CONECT      C30    4 C3   C31  H301 H302
CONECT      C31    4 C30  C32  H311 H312
CONECT      C32    3 C31  O34  N33 
CONECT      O34    1 C32 
CONECT      N33    3 C32  H331 H332
CONECT      C4     3 N21  C3   C5  
CONECT      C5     3 C4   C35  C6  
CONECT      C35    4 C5   H351 H352 H353
CONECT      C6     3 N22  C5   C7  
CONECT      C7     4 C6   C36  C37  C8  
CONECT      C36    4 C7   H361 H362 H363
CONECT      C37    4 C7   C38  H371 H372
CONECT      C38    3 C37  O39  N40 
CONECT      O39    1 C38 
CONECT      N40    3 C38  H401 H402
CONECT      C8     4 C7   C41  C9   H8  
CONECT      C41    4 C8   C42  H411 H412
CONECT      C42    4 C41  C43  H421 H422
CONECT      C43    3 C42  O44  N45 
CONECT      O44    1 C43 
CONECT      N45    3 C43  H451 H452
CONECT      C9     3 N22  C8   C10 
CONECT      C10    3 C9   C11  H10 
CONECT      C11    3 N23  C10  C12 
CONECT      C12    4 C11  C46  C47  C13 
CONECT      C46    4 C12  H461 H462 H463
CONECT      C47    4 C12  H471 H472 H473
CONECT      C13    4 C12  C48  C14  H13 
CONECT      C48    4 C13  C49  H481 H482
CONECT      C49    4 C48  C50  H491 H492
CONECT      C50    3 C49  O51  N52 
CONECT      O51    1 C50 
CONECT      N52    3 C50  H521 H522
CONECT      C14    3 N23  C13  C15 
CONECT      C15    3 C14  C53  C16 
CONECT      C53    4 C15  H531 H532 H533
CONECT      C16    3 N24  C15  C17 
CONECT      C17    4 C16  C54  C55  C18 
CONECT      C54    4 C17  H541 H542 H543
CONECT      C55    4 C17  C56  H551 H552
CONECT      C56    4 C55  C57  H561 H562
CONECT      C57    3 C56  O58  N59 
CONECT      O58    1 C57 
CONECT      N59    3 C57  C1P  H59 
CONECT      C18    4 C17  C60  C19  H18 
CONECT      C60    4 C18  C61  H601 H602
CONECT      C61    3 C60  O63  N62 
CONECT      O63    1 C61 
CONECT      N62    3 C61  H621 H622
CONECT      C19    4 N24  C1   C18  H91 
CONECT      C1P    4 N59  C2P  H1P1 H1P2
CONECT      C2P    4 C1P  C3P  O3   H2P 
CONECT      C3P    4 C2P  H3P1 H3P2 H3P3
CONECT      O3     2 C2P  P   
CONECT      O4     1 P   
CONECT      O5     2 P    HOP5
CONECT      P      4 O3   O4   O5   O2  
CONECT      O2     2 P    C3R 
CONECT      C3R    4 O2   C2R  C4R  H3R 
CONECT      C2R    4 C3R  O7R  C1R  H2R 
CONECT      O7R    2 C2R  HOR7
CONECT      C1R    4 C2R  O6R  N1B  H1R 
CONECT      O6R    2 C1R  C4R 
CONECT      C4R    4 C3R  O6R  C5R  H4R 
CONECT      C5R    4 C4R  O8R  H5R1 H5R2
CONECT      O8R    2 C5R  HOR8
CONECT      N1B    3 C1R  C8B  C2B 
CONECT      C8B    3 N1B  C9B  C7B 
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  C5M  C6B 
CONECT      C5M    4 C5B  HM51 HM52 HM53
CONECT      C6B    3 C5B  C6M  C7B 
CONECT      C6M    4 C6B  HM61 HM62 HM63
CONECT      C7B    3 C8B  C6B  H7B 
CONECT      H201   1 C20 
CONECT      H202   1 C20 
CONECT      H203   1 C20 
CONECT      H251   1 C25 
CONECT      H252   1 C25 
CONECT      H253   1 C25 
CONECT      H261   1 C26 
CONECT      H262   1 C26 
CONECT      H291   1 N29 
CONECT      H292   1 N29 
CONECT      H3     1 C3  
CONECT      H301   1 C30 
CONECT      H302   1 C30 
CONECT      H311   1 C31 
CONECT      H312   1 C31 
CONECT      H331   1 N33 
CONECT      H332   1 N33 
CONECT      H351   1 C35 
CONECT      H352   1 C35 
CONECT      H353   1 C35 
CONECT      H361   1 C36 
CONECT      H362   1 C36 
CONECT      H363   1 C36 
CONECT      H371   1 C37 
CONECT      H372   1 C37 
CONECT      H401   1 N40 
CONECT      H402   1 N40 
CONECT      H8     1 C8  
CONECT      H411   1 C41 
CONECT      H412   1 C41 
CONECT      H421   1 C42 
CONECT      H422   1 C42 
CONECT      H451   1 N45 
CONECT      H452   1 N45 
CONECT      H10    1 C10 
CONECT      H461   1 C46 
CONECT      H462   1 C46 
CONECT      H463   1 C46 
CONECT      H471   1 C47 
CONECT      H472   1 C47 
CONECT      H473   1 C47 
CONECT      H13    1 C13 
CONECT      H481   1 C48 
CONECT      H482   1 C48 
CONECT      H491   1 C49 
CONECT      H492   1 C49 
CONECT      H521   1 N52 
CONECT      H522   1 N52 
CONECT      H531   1 C53 
CONECT      H532   1 C53 
CONECT      H533   1 C53 
CONECT      H541   1 C54 
CONECT      H542   1 C54 
CONECT      H543   1 C54 
CONECT      H551   1 C55 
CONECT      H552   1 C55 
CONECT      H561   1 C56 
CONECT      H562   1 C56 
CONECT      H59    1 N59 
CONECT      H18    1 C18 
CONECT      H601   1 C60 
CONECT      H602   1 C60 
CONECT      H621   1 N62 
CONECT      H622   1 N62 
CONECT      H1P1   1 C1P 
CONECT      H1P2   1 C1P 
CONECT      H2P    1 C2P 
CONECT      H3P1   1 C3P 
CONECT      H3P2   1 C3P 
CONECT      H3P3   1 C3P 
CONECT      HOP5   1 O5  
CONECT      H3R    1 C3R 
CONECT      H2R    1 C2R 
CONECT      HOR7   1 O7R 
CONECT      H1R    1 C1R 
CONECT      H4R    1 C4R 
CONECT      H5R1   1 C5R 
CONECT      H5R2   1 C5R 
CONECT      HOR8   1 O8R 
CONECT      H2B    1 C2B 
CONECT      H4B    1 C4B 
CONECT      HM51   1 C5M 
CONECT      HM52   1 C5M 
CONECT      HM53   1 C5M 
CONECT      HM61   1 C6M 
CONECT      HM62   1 C6M 
CONECT      HM63   1 C6M 
CONECT      H7B    1 C7B 
CONECT      H91    1 C19 
HET    B12            180
FORMUL      B12    C62 H89 Co1 N13 O14 P1 2+

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