MONOCINS AND METHODS OF USE

摘要

The disclosure relates to the identification, cloning, and expression of a genetic locus within a Listeria monocytogenes genome that encodes a phage tail-like bacteriocin (PTLB), termed a monocin. Also provided are non-natural monocins, which have been engineered to have altered bactericidal specificity. Nucleic acid molecules encoding natural or non-natural monocins, vector constructs containing such nucleic acids operably linked to a heterologous promoter, producer cells containing such vectors, the encoded monocins, as well as methods of making and using such monocins are described.

主权项

1. An isolated nucleic acid molecule encoding a monocin, wherein the nucleic acid molecule comprises a first polynucleotide that encodes the structural proteins of a functional monocin except the corresponding natural receptor binding protein (RBP), wherein the nucleic acid molecule further comprises a heterologous second polynucleotide sequence encoding a heterologous RBP, wherein the RBP comprises a baseplate attachment region (BPAR) and a receptor binding domain (RBD), and wherein the monocin has bactericidal specificity as determined by the heterologous RBP.