Exportation of mouse vas deferens protein, a protein without a signal peptide, from mouse vas deferens epithelium: a model of apocrine secretion.

Mouse vas deferens protein (MVDP) is a major androgen-dependent protein of deferential fluid. It is specifically expressed in the epithelium of the mouse vas deferens. Its amino acid sequence as deduced from the nucleotidic sequence of its cDNA does not possess a signal sequence characteristic of secretory proteins.