Structure based on 1tv4

Ideal structure
Name: 3-methyl-5-sulfo-pyrrolidine-2-carboxylic acid
Formula: C6 H11 N O5 S
Weight: 209.220
SMILES: "C[CH]1C[CH](N[CH]1C(O)=O)[S](O)(=O)=O"
Spacial conformation based on PDB 1tv4.
Also present on 7xcm
RESIDUE   BG3     24
CONECT      C1     3 C2   O1   O5  
CONECT      C2     4 C1   C3   N1   H2  
CONECT      C3     4 C2   C4   C6   H3  
CONECT      C4     4 C3   C5   H41  H42 
CONECT      C5     4 C4   N1   S1   H5  
CONECT      C6     4 C3   H61  H62  H63 
CONECT      O1     1 C1  
CONECT      N1     3 C2   C5   HN1 
CONECT      S1     4 C5   O2   O3   O4  
CONECT      O2     1 S1  
CONECT      O3     1 S1  
CONECT      O4     2 S1   HO4 
CONECT      O5     2 C1   HO5 
CONECT      H2     1 C2  
CONECT      H3     1 C3  
CONECT      H41    1 C4  
CONECT      H42    1 C4  
CONECT      H5     1 C5  
CONECT      H61    1 C6  
CONECT      H62    1 C6  
CONECT      H63    1 C6  
CONECT      HN1    1 N1  
CONECT      HO4    1 O4  
CONECT      HO5    1 O5  
END   
HET    BG3             24
HETNAM     BG3 3-METHYL-5-SULFO-PYRROLIDINE-2-CARBOXYLIC ACID
FORMUL      BG3    C6 H11 N1 O5 S1

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