Structure based on 1ggx

Ideal structure
Name: [2-(3-carbamoyl-1-imino-propyl)-4-(4-hydroxy-benzylidene)-5-oxo-4,5-dihydro-imidazol-1-yl]-acetic acid
Formula: C16 H16 N4 O5
Weight: 344.322
SMILES: "NC(=O)CCC(=N)C1=NC(=Cc2ccc(O)cc2)C(=O)N1CC(O)=O"
Spacial conformation based on PDB 1ggx.
Also present in other 46 PDB entries.
RESIDUE   CRQ     41
CONECT      N      2 CA1  HN1 
CONECT      CA1    3 N    CB1  C1  
CONECT      CB1    4 CA1  CG1  HB11 HB12
CONECT      CG1    4 CB1  CD3  HG11 HG12
CONECT      C1     3 CA1  N2   N3  
CONECT      N2     2 C1   CA2 
CONECT      N3     3 C1   C2   CA3 
CONECT      C2     3 N3   O2   CA2 
CONECT      O2     1 C2  
CONECT      CA2    3 N2   C2   CB2 
CONECT      CA3    4 N3   C    HA31 HA32
CONECT      CB2    3 CA2  CG2  HB1 
CONECT      CG2    3 CB2  CD1  CD2 
CONECT      CD1    3 CG2  CE1  HD1 
CONECT      CD2    3 CG2  CE2  HD2 
CONECT      CE1    3 CD1  CZ   HE1 
CONECT      CE2    3 CD2  CZ   HE2 
CONECT      CZ     3 CE1  CE2  OH  
CONECT      OH     2 CZ   HH  
CONECT      OE1    1 CD3 
CONECT      C      3 CA3  O    OXT 
CONECT      O      1 C   
CONECT      CD3    3 CG1  OE1  NE1 
CONECT      NE1    3 CD3  HE11 HE12
CONECT      OXT    2 C    HXT 
CONECT      HN1    1 N   
CONECT      HB11   1 CB1 
CONECT      HB12   1 CB1 
CONECT      HG11   1 CG1 
CONECT      HG12   1 CG1 
CONECT      HA31   1 CA3 
CONECT      HA32   1 CA3 
CONECT      HB1    1 CB2 
CONECT      HD1    1 CD1 
CONECT      HD2    1 CD2 
CONECT      HE1    1 CE1 
CONECT      HE2    1 CE2 
CONECT      HH     1 OH  
CONECT      HE11   1 NE1 
CONECT      HE12   1 NE1 
CONECT      HXT    1 OXT 
END   
HET    CRQ             41
HETSYN     CRQ CHROMOPHORE (GLN-TYR-GLY)
HETNAM     CRQ [2-(3-CARBAMOYL-1-IMINO-PROPYL)-4-(4-HYDROXY-BENZYLIDEN
HETNAM   2 CRQ E)-5-OXO-4,5-DIHYDRO-IMIDAZOL-1-YL]-ACETIC ACID
FORMUL      CRQ    C16 H16 N4 O5

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