ID 4.2.2.12 DE xanthan lyase. CA Eliminative cleavage of the terminal beta-D-mannosyl-(1->4)-beta-D- CA glucuronosyl linkage of the side-chain of the polysaccharide xanthan, CA leaving a 4-deoxy-alpha-L-threo-hex-4-enuronosyl group at the terminus of CA the side-chain. DR Q9AQS0, XANLY_BACGL; //