Targeted antimicrobials and related compositions, methods and systems

1. An antimicrobial composition comprising

a therapeutically effective antimicrobial amount of a targeted antimicrobial protein for Bacillus cereus or a microorganism related thereto and a suitable vehicle, the therapeutically effective antimicrobial amount being at least twice the amount produced in a cell of the Bacillus cereus or the microorganism related thereto,

wherein the targeted antimicrobial protein has a catalytic domain and a binding domain, the targeted antimicrobial protein being BCZK2532 protein having SEQ ID NO:3 and/or a related lysin protein,

wherein the related lysin protein has at least 90% identity with the BCZK2532 protein having SEQ ID NO:3 or a portion thereof having a lytic activity, and

wherein the related lysin protein has an arginine in a position corresponding upon alignment to amino acid residue 100 of SEQ ID NO:3.

2. The antimicrobial composition of claim 1 , wherein the microorganism related thereto comprises B. anthracis, B. thuringiensis 97-27, B. thuringiensis HD1, B. thuringiensis HD560 and B. thuringiensis HD658.

3. The antimicrobial composition of claim 1 , wherein the related lysin protein has at least 95% identity with the BCZK2532 protein having SEQ ID NO: 3 or a portion thereof having a lytic activity.

4. The antimicrobial composition of claim 1 , wherein the portion thereof is the catalytic domain and/or the binding domain of the BCZK2532 protein and wherein the catalytic domain and/or the binding domain of the related lysin protein has at least 90% identity with the catalytic domain and/or the binding domain of the BCZK2532 protein.

5. The antimicrobial composition of claim 1 , wherein the portion thereof is the catalytic domain and/or the binding domain of the BCZK2532 protein and wherein the catalytic domain and/or the binding domain of the related lysin protein has at least 50% identity with the catalytic domain and/or the binding domain of the BCZK2532 protein.

6. The antimicrobial composition of claim 1 , wherein the portion thereof is the catalytic domain and/or the binding domain of the BCZK2532 protein and wherein the catalytic domain and/or the binding domain of the related lysin protein has an identity of between 60% and 90% with the catalytic domain and/or the binding domain of the BCZK2532 protein.

7. The antimicrobial composition of claim 1 , wherein the portion thereof is the catalytic domain and/or the binding domain of the BCZK2532 protein and wherein the catalytic domain and/or the binding domain of the related lysin protein has at least 90% identity with the catalytic domain and/or the binding domain of the BCZK2532 protein.

8. The antimicrobial composition of claim 1 , wherein the portion thereof is the catalytic domain and/or the binding domain of the BCZK2532 protein and wherein the catalytic domain and/or the binding domain of the related lysin protein has at least 95% identity with the catalytic domain and/or the binding domain of the BCZK2532 protein.

9. The antimicrobial composition of claim 1 , wherein the composition comprises an additional one or more antimicrobials.

10. The antimicrobial composition of claim 9 wherein the antimicrobial is one or more antibiotics.

11. The antimicrobial composition of claim 1 , wherein the vehicle is a pharmaceutically acceptable vehicle and the composition is a pharmaceutical composition.

12. The antimicrobial composition of claim 1 , wherein the targeted antimicrobial protein is in nanomolar concentrations.

13. The antimicrobial composition of claim 1 , wherein the targeted antimicrobial protein further comprises a tag.

14. The antimicrobial composition of claim 1 , wherein the antimicrobial composition is in a lyophilized form.

15. An antimicrobial system comprising:

a therapeutically effective antimicrobial amount of one or more targeted antimicrobial proteins specific for Bacillus cereus or one or more related microorganisms, the therapeutically effective antimicrobial amount being at least twice the amount produced in a cell of the Bacillus cereus or the microorganism related thereto,

and at least one of

suitable reagents, and

an additional antimicrobial,

wherein the one or more targeted antimicrobial proteins comprise BCZK2532 protein having SEQ ID NO:3 and/or one or more related lysin proteins

wherein the one or more related lysin proteins have at least 90% identity with the BCZK2532 protein having SEQ ID NO:3 or a portion thereof having a lytic activity, and

wherein the one or more related lysin proteins have an arginine in a position corresponding upon alignment to amino acid residue 100 of SEQ ID NO:3.

16. The antimicrobial system of claim 15 , wherein the one or more targeted antimicrobial proteins is a purified targeted antimicrobial protein further comprising a tag.

17. The antimicrobial composition of claim 1 , wherein the therapeutically effective amount of one or more purified targeted antimicrobial proteins is at least two orders of magnitude greater than the amount produced in a cell of the Bacillus cereus or the one or more related microorganisms.

18. The antimicrobial system of claim 15 , wherein the therapeutically effective amount of one or more purified targeted antimicrobial proteins is at least two orders of magnitude greater than the amount produced in a cell of the Bacillus cereus or the one or more related microorganisms.