Chapter 5

Gel-Forming Mucin MUC5AC

Joseph Z. Zaretsky and Daniel H. Wreschner

Abstract

The MUC5AC mucin plays an essential role in homeostasis of respiratory, gastrointestinal and urogenital tracts under physiological conditions and fulfills various important functions in human pathology. This chapter describes the molecular structure of the MUC5AC gene and the mechanisms that regulate its activity. It analyzes the biochemical and biophysical properties of the MUC5AC glycoprotein, its biosynthesis and posttranslational modifications, as well as its expression in the respiratory, gastrointestinal and male and female urogenital organs under physiological and pathological conditions. The roles of the MUC5AC mucin in eye physiology and pathology and in breast cancer are also discussed.

Total Pages: 145-245 (101)

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