Yeda Research and Develpment & Co. Ltd

Hila Sberro

Rotem Sorek

Tamara Goldfarb

Azita Leavitt

Isolated polynucleotides encoding a BREX system are provided. Accordingly there is provided an isolated polynucleotide encoding a BREX system comprising a nucleic acid sequence encoding the BREX system comprising brxC/pglY, pglZ and at least one of pglX, pglXI, brxP, brxHI, brxHII, brxL, brxD, brxA, brxB, brxF, and brxE, with the proviso that said BREX system does not comprise pglW, and wherein said BREX system confers phage resistance to a bacteria recombinantly expressing same; Also provided is an isolated polynucleotide encoding a BREX system comprising a nucleic acid sequence encoding the BREX system comprising brxC/pglY, pglZ, pglX, pglW and at least one of brxD and brxHI, and wherein said BREX system confers phage resistance to a bacteria recombinantly expressing same. Also provided are compositions and methods for conferring phage resistance to bacteria or for conferring bacterial susceptibility to phages.

Polynucleotides encoding BREX system polypeptides and methods of using same

An isolated polypeptide is disclosed comprising an amino acid sequence selected from the group consisting of SEQ ID NOs: 2773-5544 and 11089-11094, wherein the polypeptide has antimicrobial activity. Uses thereof for treating microbial infections are also disclosed.

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Rehovot, Israel

Hila Sberro