I. Minkiewicz et A. Gindzienski, Low molecular mass products of depolymerization of purified mucin - attempts at isolation and characterization, ACT BIOCH P, 46(4), 1999, pp. 929-933
Samples of crude mucin were incubated at room temperature for 48 and 96 h i
n a sodium azide containing buffer, pH 7.0. Then each sample was purified,
reduced and alkylated with iodo[C-14]acetamide. Electrophoretic analysis de
monstrated that radioactivity was incorporated into the mucin subunits and
proteins of 100 and 140 kDa. The results of our experiments suggest that th
e released proteins can be a part of mucin molecule, cleaved by proteolysis
and reduction of disulfide bridges.