323 4-(2'-carboxyphenyl)-4-oxybutyric acid synthase o-succinylbenzoic acid synthase MENC_YERPS o-succinylbenzoate synthase Converts SHCHC to OSB (By similarity). YPTB2557 MRTATLYRYSVPMEAGVILRHQRLKSRDGLLVKLQQGELSGWGEIAPLPEFSQETLDQAQVAAECWLQHWVSGVESDDSVLPSVAFGLSCAQAELKQTLPLSADYRKASLCTGDPDELFAVLQALPGEKVAKVKVGLYEAVRDGMIVNVLLEALPDLTLRLDANRSWSRAKADGFAKYVNPALRSRIAFLEEPCKTRAESREFAQDTGIAIAWDESVREADFQVEAEPGVAAIVIKPTLVGSLARCQQLVQQAHQAGLVAVISSSIESSLGLTQLARLAAWLTPATVPGLDTLDLMQAQVVRPWPDSPLPLITTEQLGVVWHR menC