Structure based on 1sks

Ideal structure
Name: cis-syn cyclobutane thymine dimer
Formula: C20 H28 N4 O15 P2
Weight: 626.402
SMILES: "C[C]12[CH]3[CH]4N([CH]5C[CH](O[P](O)(=O)OC[CH]6O[CH](C[CH]6O)N3C(=O)NC1=O)[CH](CO[P](O)(O)=O)O5)C(=O)NC(=O)[C]24C"
Spacial conformation based on PDB 1sks.
Also present in other 14 PDB entries.
RESIDUE   TTD     69
CONECT      P      4 OP1  OP2  OP3  O5' 
CONECT      OP1    1 P   
CONECT      OP2    2 P    HOP2
CONECT      OP3    2 P    HOP3
CONECT      O5'    2 P    C5' 
CONECT      C5'    4 O5'  C4R  H5'  H5''
CONECT      C4R    4 C5'  O4'  C3R  H4R 
CONECT      O4'    2 C4R  C1' 
CONECT      C3R    4 C4R  O3R  C2'  H3R 
CONECT      O3R    2 C3R  PB  
CONECT      C2'    4 C3R  C1'  H2'  H2''
CONECT      C1'    4 O4'  C2'  N1   H1' 
CONECT      N1     3 C1'  C2   C6  
CONECT      C2     3 N1   O2   N3  
CONECT      O2     1 C2  
CONECT      N3     3 C2   C4   HN3 
CONECT      C4     3 N3   O4   C5  
CONECT      O4     1 C4  
CONECT      C5     4 C4   C5A  C6   C5T 
CONECT      C5A    4 C5   H5A1 H5A2 H5A3
CONECT      C6     4 N1   C5   C6T  H6  
CONECT      PB     4 O3R  O5P  O4P  O5R 
CONECT      O5P    1 PB  
CONECT      O4P    2 PB   H4P 
CONECT      O5R    2 PB   C5R 
CONECT      C5R    4 O5R  C4'  H5R1 H5R2
CONECT      O4R    2 C1R  C4' 
CONECT      C2R    4 C1R  C3'  H2R1 H2R2
CONECT      C1R    4 O4R  C2R  N1T  H1R 
CONECT      N1T    3 C1R  C2T  C6T 
CONECT      C2T    3 N1T  O2T  N3T 
CONECT      O2T    1 C2T 
CONECT      N3T    3 C2T  C4T  HT  
CONECT      C4T    3 N3T  O4T  C5T 
CONECT      O4T    1 C4T 
CONECT      C5T    4 C5   C4T  C5M  C6T 
CONECT      C5M    4 C5T  H71  H72  H73 
CONECT      C6T    4 C6   N1T  C5T  H6T 
CONECT      C4'    4 C5R  O4R  C3'  H4' 
CONECT      C3'    4 C2R  C4'  O3'  H1  
CONECT      O3'    2 C3'  HO3'
CONECT      HOP2   1 OP2 
CONECT      HOP3   1 OP3 
CONECT      H5'    1 C5' 
CONECT      H5''   1 C5' 
CONECT      H4R    1 C4R 
CONECT      H3R    1 C3R 
CONECT      H2'    1 C2' 
CONECT      H2''   1 C2' 
CONECT      H1'    1 C1' 
CONECT      HN3    1 N3  
CONECT      H5A1   1 C5A 
CONECT      H5A2   1 C5A 
CONECT      H5A3   1 C5A 
CONECT      H6     1 C6  
CONECT      H4P    1 O4P 
CONECT      H5R1   1 C5R 
CONECT      H5R2   1 C5R 
CONECT      H2R1   1 C2R 
CONECT      H2R2   1 C2R 
CONECT      H1R    1 C1R 
CONECT      HT     1 N3T 
CONECT      H71    1 C5M 
CONECT      H72    1 C5M 
CONECT      H73    1 C5M 
CONECT      H6T    1 C6T 
CONECT      H4'    1 C4' 
CONECT      H1     1 C3' 
CONECT      HO3'   1 O3' 
END   
HET    TTD             69
HETSYN     TTD [(3S,4S,9S,10R,12R,15AR,18BS,18CS)-3,7-DIHYDROXY-15A,15
HETSYN   2 TTD B-DIMETHYL-7-OXIDO-13,15,16,18-TETRAOXOHEXADECAHYDRO-1H
HETSYN   3 TTD -1,4-EPOXY-9,12-METHANO-6,8,11-TRIOXA-12A,14,17,18A-TET
HETSYN   4 TTD RAAZA-7-PHOSPHACYCLOHEXADECA[1,2,3,4-DEF]BIPHENYLEN-10-
HETSYN   5 TTD YL]METHYL DIHYDROGEN PHOSPHATE
HETNAM     TTD CIS-SYN CYCLOBUTANE THYMINE DIMER
FORMUL      TTD    C20 H28 N4 O15 P2

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