Structure based on ?

Ideal structure
Name: n-carboxymethionine
Formula: C6 H11 N O4 S
Weight: 193.221
SMILES: "CSCC[CH](NC(O)=O)C(O)=O"
Spacial conformation based on PDB ?.
Also present in other 79 PDB entries.
RESIDUE   CXM     23
CONECT      N      3 CA   CN   H   
CONECT      CA     4 N    CB   C    HA  
CONECT      CB     4 CA   CG   HB2  HB3 
CONECT      CG     4 CB   SD   HG2  HG3 
CONECT      SD     2 CG   CE  
CONECT      CE     4 SD   HE1  HE2  HE3 
CONECT      C      3 CA   O    OXT 
CONECT      O      1 C   
CONECT      CN     3 N    ON1  ON2 
CONECT      ON1    1 CN  
CONECT      ON2    2 CN   HO2 
CONECT      OXT    2 C    HXT 
CONECT      H      1 N   
CONECT      HA     1 CA  
CONECT      HB2    1 CB  
CONECT      HB3    1 CB  
CONECT      HG2    1 CG  
CONECT      HG3    1 CG  
CONECT      HE1    1 CE  
CONECT      HE2    1 CE  
CONECT      HE3    1 CE  
CONECT      HO2    1 ON2 
CONECT      HXT    1 OXT 
END   
HET    CXM             23
HETNAM     CXM N-CARBOXYMETHIONINE
FORMUL      CXM    C6 H11 N O4 S

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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