EC 5.3.3.9     
Accepted name: prostaglandin-A1 Δ-isomerase
Reaction: (13E)-(15S)-15-hydroxy-9-oxoprosta-10,13-dienoate = (13E)-(15S)-15-hydroxy-9-oxoprosta-11,13-dienoate
Other name(s): prostaglandin A isomerase
Systematic name: (13E)-(15S)-15-hydroxy-9-oxoprosta-10,13-dienoate Δ1011-isomerase
Comments: Interconverts prostaglandin A1 and prostaglandin C1.
References:
1.  Polet, H. and Levine, L. Metabolism of prostaglandins E, A and C in serum. J. Biol. Chem. 250 (1975) 351–357. [PMID: 234423]
[EC 5.3.3.9 created 1978]