Structure based on 2f7a

Ideal structure
Name: (2z,4z)-hexa-2,4-dienedioic acid
Formula: C6 H6 O4
Weight: 142.109
SMILES: "OC(=O)C=CC=CC(O)=O"
Spacial conformation based on PDB 2f7a.
Also present on 2f7c, 3glb
RESIDUE   CCU     16
CONECT      C2     3 C3   C1   H2  
CONECT      C3     3 C2   C4   H3  
CONECT      C4     3 C3   C5   H4  
CONECT      C6     3 O4   O3   C5  
CONECT      O4     1 C6  
CONECT      O3     2 C6   HO3 
CONECT      C5     3 C4   C6   H5  
CONECT      C1     3 C2   O1   O2  
CONECT      O1     1 C1  
CONECT      O2     2 C1   HO2 
CONECT      H2     1 C2  
CONECT      H3     1 C3  
CONECT      H4     1 C4  
CONECT      HO3    1 O3  
CONECT      H5     1 C5  
CONECT      HO2    1 O2  
END   
HET    CCU             16
HETSYN     CCU CIS,CIS-MUCONIC ACID
HETNAM     CCU (2Z,4Z)-HEXA-2,4-DIENEDIOIC ACID
FORMUL      CCU    C6 H6 O4

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