Penicillin-binding protein

• A group of enzymes including transpeptidases, carboxypeptidases, and endopeptidases that play a role in the formation and maintenance of the cell wall structure

	Class A							Class B										Class C
	A1	A2	A3	A4	A5	A6	A7	B1	B2	B3	B4	B5	B5	B6	B-like-I	B-like-II	B-like-III	Type-4	Type-5	Type-7	Type-AmpH
Gram-Negative Bacteria
Escherichia coli	PBP1a	PBP1b				PBP1c	MGT		PHP2	PHP3								PBP4	PBP5, PHP6, PHP6b	PBP7	PBP4b, AmpH
Neisseria gonorrhoeae	PBP1									PBP2								PBP3		PBP4
Gram-Positive Bacteria
Staphylococcus aureus			PBP2				MGT	PBP2a			PBP1	PBP3							PBP4
Listeria monocytogenes			PBP1	PBP4				PBP			PBP2	PBP3							PBP5
Enterococcus faecalis			PBP1a	PBP2a	PBP1b			PBP4			PBP2	PBP2b							DacF
Streptococcus pneumoniae			PBP1a	PBP2a	PBP1b						PBP2x	PBP2b							PBP3s
Other Bacteria
Mycobacterium tuberculosis				PBP1 ponA1			PBP1A (r) ponA2		PBPA pbpA		PBP2 pbpB					PBP-lipo Rv2864c		PBP4 Rv3627	PBP5 dacB1	PBP7 dacB2	PBP