4.1.2.10 (R)-mandelonitrile lyase cyanohydrin formation - Prunus pseudoarmeniaca - 4.1.2.47 (S)-hydroxynitrile lyase cyanohydrin formation - Hevea brasiliensis P52704 4.1.2.47 (S)-hydroxynitrile lyase cyanohydrin formation - Manihot esculenta P52705