Proline-and arginine-rich antimicrobial peptide (7 kD) isolated from bovine neutrophils. Bac-5 is similar. The upstream region of proBac-5 and proBac-7 both have sequence homology with similar regions of other neutrophil antimicrobial peptides (CAP18 from rabbit neutrophils and bovine indolicidin). The pro-region also has similarity to porcine cathelin. Member of the protegrin family of peptides.
Dictionary of molecular biology. 2004.