Table 1

Distribution of mucins in the gastrointestinal tract and in associated tissues

MucinDistributionChromosomal locationTandem repeat size (No of amino acids)
Secreted gel-forming
 MUC2Small intestine, colon11p15.523
 MUC5BSalivary glands, gallbladder11p15.529
 MUC6Stomach, duodenum, gallbladder, pancreas11p15.5169
 MUC19Sublingual gland, submandibular gland12q1219
Secreted non-gel-forming (monomeric)
 MUC7Salivary glands4q13-q2123
Cell surface
 MUC1Stomach, gallbladder, pancreas, duodenum, colon1q2120
 MUC3A/BSmall intestine, colon, gall bladder, duodenum7q2217
 MUC4Colon, stomach3q2916
 MUC12Colon, small intestine, stomach, pancreas7q2228
 MUC13Colon, small intestine, stomach3q13.327
 MUC15Small intestine, colon, foetal liver11p14.3None
 MUC16Peritoneal mesothelium19p13.3156
 MUC17Small intestine, colon, duodenum, stomach7q2259