Structure based on 1d1w

Ideal structure
Name: (6r,1'r,2's)-5,6,7,8 tetrahydrobiopterin
Formula: C9 H15 N5 O3
Weight: 241.247
SMILES: "C[CH](O)[CH](O)[CH]1CNC2=C(N1)C(=O)NC(=N2)N"
Spacial conformation based on PDB 1d1w
RESIDUE   BH4     32
CONECT      N1     2 C2   C10 
CONECT      C2     3 N1   N3   N11 
CONECT      N8     3 C7   C10  HN8 
CONECT      C7     4 N8   C6   H71  H72 
CONECT      C6     4 C7   N5   C13  H6  
CONECT      N5     3 C6   C9   HN5 
CONECT      C4     3 N3   C9   O12 
CONECT      N3     3 C2   C4   HN3 
CONECT      C10    3 N1   N8   C9  
CONECT      C9     3 N5   C4   C10 
CONECT      C17    4 C15  H171 H172 H173
CONECT      O16    2 C15  H16 
CONECT      C15    4 C17  O16  C13  H15 
CONECT      N11    3 C2   H111 H112
CONECT      O12    1 C4  
CONECT      C13    4 C6   C15  O14  H13 
CONECT      O14    2 C13  H14 
CONECT      HN8    1 N8  
CONECT      H71    1 C7  
CONECT      H72    1 C7  
CONECT      H6     1 C6  
CONECT      HN5    1 N5  
CONECT      HN3    1 N3  
CONECT      H171   1 C17 
CONECT      H172   1 C17 
CONECT      H173   1 C17 
CONECT      H16    1 O16 
CONECT      H15    1 C15 
CONECT      H111   1 N11 
CONECT      H112   1 N11 
CONECT      H13    1 C13 
CONECT      H14    1 O14 
END   
HET    BH4             32
HETNAM     BH4 (6R,1'R,2'S)-5,6,7,8 TETRAHYDROBIOPTERIN
FORMUL      BH4    C9 H15 N5 O3

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