Structure based on 1it6

Ideal structure
Name: calyculin a
Formula: C50 H81 N4 O15 P
Weight: 1009.170
SMILES: "COCC(C(O)C(O)C(=O)NCC[CH](C)c1occ(C=CC[CH]2O[C]3(C[CH](O)[CH]2C)O[CH]([CH](C[CH](O)[CH](C)[CH](O)[CH](C)C=C(C)C(C)=CC=CC(C)=CC#N)OC)[CH](O[P](O)(O)=O)C3(C)C)n1)N(C)C"
Spacial conformation based on PDB 1it6
RESIDUE   CYU    151
CONECT      P1     4 O4   O5   O6   O7  
CONECT      O1     2 C11  HO1 
CONECT      O2     2 C13  HO2 
CONECT      O3     2 C15  C45 
CONECT      O4     2 P1   C17 
CONECT      O5     2 P1   HO5 
CONECT      O6     2 P1   HO6 
CONECT      O7     1 P1  
CONECT      O8     2 C16  C19 
CONECT      O9     2 C21  HO9 
CONECT      O10    2 C19  C23 
CONECT      O11    2 C29  C28 
CONECT      N1     1 C1  
CONECT      N2     2 C27  C29 
CONECT      C1     2 N1   C2  
CONECT      C2     3 C1   C3   H2  
CONECT      C3     3 C2   C4   C50 
CONECT      C4     3 C3   C5   H4  
CONECT      C5     3 C4   C6   H5  
CONECT      C6     3 C5   C7   H6  
CONECT      C7     3 C6   C8   C49 
CONECT      C8     3 C7   C9   C48 
CONECT      C9     3 C8   C10  H9  
CONECT      C10    4 C9   C11  C47  H10 
CONECT      C11    4 O1   C10  C12  H11 
CONECT      C12    4 C11  C13  C46  H12 
CONECT      C13    4 O2   C12  C14  H13 
CONECT      C14    4 C13  C15  H141 H142
CONECT      C15    4 O3   C14  C16  H15 
CONECT      C16    4 O8   C15  C17  H16 
CONECT      C17    4 O4   C16  C18  H17 
CONECT      C18    4 C17  C19  C43  C44 
CONECT      C19    4 O8   O10  C18  C20 
CONECT      C20    4 C19  C21  H201 H202
CONECT      C21    4 O9   C20  C22  H21 
CONECT      C22    4 C21  C23  C42  H22 
CONECT      C23    4 O10  C22  C24  H23 
CONECT      C24    4 C23  C25  H241 H242
CONECT      C25    3 C24  C26  H25 
CONECT      C26    3 C25  C27  H26 
CONECT      C27    3 N2   C26  C28 
CONECT      C29    3 O11  N2   C30 
CONECT      C28    3 O11  C27  H28 
CONECT      C30    4 C29  C31  C41  H30 
CONECT      C31    4 C30  C32  H311 H312
CONECT      C32    4 C31  N3   H321 H322
CONECT      C41    4 C30  H411 H412 H413
CONECT      C42    4 C22  H421 H422 H423
CONECT      C43    4 C18  H431 H432 H433
CONECT      C44    4 C18  H441 H442 H443
CONECT      C45    4 O3   H451 H452 H453
CONECT      C46    4 C12  H461 H462 H463
CONECT      C47    4 C10  H471 H472 H473
CONECT      C48    4 C8   H481 H482 H483
CONECT      C49    4 C7   H491 H492 H493
CONECT      C50    4 C3   H501 H502 H503
CONECT      C33    3 C34  N3   O12 
CONECT      C34    4 C33  C35  O13  H34 
CONECT      C35    4 C34  C36  O14  H35 
CONECT      C36    4 C35  C37  N4   H36 
CONECT      C37    4 C36  O15  H371 H372
CONECT      C38    4 O15  H381 H382 H383
CONECT      C39    4 N4   H391 H392 H393
CONECT      C40    4 N4   H401 H402 H403
CONECT      N3     3 C32  C33  HN3 
CONECT      N4     3 C36  C39  C40 
CONECT      O12    1 C33 
CONECT      O13    2 C34  HO13
CONECT      O14    2 C35  HO14
CONECT      O15    2 C37  C38 
CONECT      HO1    1 O1  
CONECT      HO2    1 O2  
CONECT      HO5    1 O5  
CONECT      HO6    1 O6  
CONECT      HO9    1 O9  
CONECT      H2     1 C2  
CONECT      H4     1 C4  
CONECT      H5     1 C5  
CONECT      H6     1 C6  
CONECT      H9     1 C9  
CONECT      H10    1 C10 
CONECT      H11    1 C11 
CONECT      H12    1 C12 
CONECT      H13    1 C13 
CONECT      H141   1 C14 
CONECT      H142   1 C14 
CONECT      H15    1 C15 
CONECT      H16    1 C16 
CONECT      H17    1 C17 
CONECT      H201   1 C20 
CONECT      H202   1 C20 
CONECT      H21    1 C21 
CONECT      H22    1 C22 
CONECT      H23    1 C23 
CONECT      H241   1 C24 
CONECT      H242   1 C24 
CONECT      H25    1 C25 
CONECT      H26    1 C26 
CONECT      H28    1 C28 
CONECT      H30    1 C30 
CONECT      H311   1 C31 
CONECT      H312   1 C31 
CONECT      H321   1 C32 
CONECT      H322   1 C32 
CONECT      H411   1 C41 
CONECT      H412   1 C41 
CONECT      H413   1 C41 
CONECT      H421   1 C42 
CONECT      H422   1 C42 
CONECT      H423   1 C42 
CONECT      H431   1 C43 
CONECT      H432   1 C43 
CONECT      H433   1 C43 
CONECT      H441   1 C44 
CONECT      H442   1 C44 
CONECT      H443   1 C44 
CONECT      H451   1 C45 
CONECT      H452   1 C45 
CONECT      H453   1 C45 
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      H481   1 C48 
CONECT      H482   1 C48 
CONECT      H483   1 C48 
CONECT      H491   1 C49 
CONECT      H492   1 C49 
CONECT      H493   1 C49 
CONECT      H501   1 C50 
CONECT      H502   1 C50 
CONECT      H503   1 C50 
CONECT      H34    1 C34 
CONECT      H35    1 C35 
CONECT      H36    1 C36 
CONECT      H371   1 C37 
CONECT      H372   1 C37 
CONECT      H381   1 C38 
CONECT      H382   1 C38 
CONECT      H383   1 C38 
CONECT      H391   1 C39 
CONECT      H392   1 C39 
CONECT      H393   1 C39 
CONECT      H401   1 C40 
CONECT      H402   1 C40 
CONECT      H403   1 C40 
CONECT      HN3    1 N3  
CONECT      HO13   1 O13 
CONECT      HO14   1 O14 
END   
HET    CYU            151
HETNAM     CYU CALYCULIN A
FORMUL      CYU    C50 H81 N4 O15 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