ID 3.2.1.203 DE carboxymethylcellulase. AN CMCase. CA Endohydrolysis of (1->4)-beta-D-glucosidic linkages in CA (carboxymethyl)cellulose. CC -!- The enzyme from the acidophilic bacterium Alicyclobacillus CC acidocaldarius is an endo-cleaving hydrolase that cleaves beta(1->4)- CC linked residues. CC -!- However, it is specific for (carboxymethyl)cellulose and does not act CC on cellulosic substrates such as avicel. //