Structure based on 3u4s

Ideal structure
Name: n-(carboxycarbonyl)-d-cysteine
Formula: C5 H7 N O5 S
Weight: 193.178
SMILES: "OC(=O)[CH](CS)NC(=O)C(O)=O"
Spacial conformation based on PDB 3u4s
RESIDUE   08P     19
CONECT      OAY    2 CAS  H1  
CONECT      CAS    3 OAY  OAX  CAR 
CONECT      OAX    1 CAS 
CONECT      CAR    3 CAS  OAW  N   
CONECT      OAW    1 CAR 
CONECT      N      3 CAR  CA   H   
CONECT      CA     4 N    C    CB   HA  
CONECT      C      3 CA   O    OXT 
CONECT      O      1 C   
CONECT      OXT    2 C    H2  
CONECT      CB     4 CA   S    HB2  HB3 
CONECT      S      2 CB   H3  
CONECT      H1     1 OAY 
CONECT      H      1 N   
CONECT      HA     1 CA  
CONECT      H2     1 OXT 
CONECT      HB2    1 CB  
CONECT      HB3    1 CB  
CONECT      H3     1 S   
END   
HET    08P             19
HETSYN     08P N-oxalyl-D-cysteine
HETNAM     08P N-(carboxycarbonyl)-D-cysteine
FORMUL      08P    C5 H7 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