L,L-SUCCINAMOPINE: AN EPIMERIC CROWN GALL OPINE

Article abstract of DOI:10.1016/0031-9422(85)80032-7

Alfalfa tumour incited by Agrobacterium tumefaciens strain A281, carrying the tumour inducing plasmid pTiBo542, synthesizes agropine and related mannityl opines.In addition it contains a small amount of leucinopine and large quantities of a new opine here identified as N-<(1S)-1-carboxy 2-carbamoylethyl>-(S)-glutamic acid.This new opine, L,L-succinamopine, is the L^glu epimer of the succinamopine previously isolated from tumours incited by pTiAT181 and related strains.The latter opine should now be designated D,L-succinamopine.This is the first example of the natural occurrence of epimeric opine structures.Key Word Index - Agrobacterium tumefaciens; crown gall; opine; succinamopine; leucinopine.