Microorganisms and methods for producing cis,cis-muconic acid

A recombinant microorganism comprising:

• one or more modifications with respect to a corresponding microorganism not comprising the one or more modifications, wherein the one or more modifications comprise at least one of:
• a modification that increases flavin prenyltransferase activity with respect to the corresponding microorganism;
• a modification that increases protocatechuate decarboxylase activity with respect to the corresponding microorganism;
• a recombinant protocatechuate decarboxylase D gene encoding a protocatechuate decarboxylase D protein;
• a modification that increases catechol 1,2-dioxygenase activity with respect to the corresponding microorganism;
• a modification that decreases muconate lactonizing enzyme activity with respect to the corresponding microorganism;
• a modification that decreases muconolactone isomerase activity with respect to the corresponding microorganism;
• a modification that decreases catechol 2,3-dioxygenase activity with respect to the corresponding microorganism;
• and
• a modification that decreases protocatechuate 4,5-dioxygenase activity with respect to the corresponding microorganism.