Molecular cloning of cDNAs derived from a novel human intestinal mucin gene

Biochem Biophys Res Commun. 1990 Aug 31;171(1):407-15. doi: 10.1016/0006-291x(90)91408-k.


A human small intestinal lambda gt11 cDNA library was screened with antibodies to deglycosylated small intestinal mucin. Four partial cDNA clones were isolated that define a novel human mucin gene. These include two partial cDNA clones, SIB 124 and SIB 139, that contain 51 nucleotide tandem repeats which encode a seventeen amino acid repetitive peptide with a consensus sequence of HSTPSFTSSITTTETTS. SIB 139 hybridized to messages produced by small intestine, colon, colonic tumors and also by high mucin variant LS174T colon cancer cells. The gene from which cDNAs SIB 124 and SIB 139 are derived (proposed name MUC 3) maps to chromosome 7, distinct from other known human mucin genes.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Amino Acid Sequence
  • Base Sequence
  • Blotting, Northern
  • Blotting, Southern
  • Chromosome Mapping
  • Chromosomes, Human, Pair 7*
  • Cloning, Molecular
  • DNA / genetics
  • Genes
  • Humans
  • Intestines / physiology*
  • Molecular Sequence Data
  • Mucins / genetics*


  • Mucins
  • DNA

Associated data

  • GENBANK/M55405
  • GENBANK/M55406