>tr|Q3J568|Q3J568_CERS4 2-hydroxychromene-2-carboxylate isomerase OS=Cereibacter sphaeroides GN=RSP_1916 MNPIEFWFDFSSGYAFFAAQRIEALAAELGRTVLWRPYMLGAAFSVTGARGLSSTPLKRD YAQRDWARIARQRGLTFRPPADHPHVALAATRAFYWIEAQSPDAATAFAQRVFDLYFSDR LDTASPEAVSRLGPEVGLEPEALLAGIADPALKETVRKIGEDAVARGIFGSPFFLVDDEP FWGWDRMEMMAEWIRTGGW