Protein
Penicillin-binding protein 2B
Organism
Bacillus subtilis (strain 168)
Function
Penicillin-binding proteins (PBPs) function in the late steps of murein biosynthesis. PBP-2B is required for vegetative cell division and sporulation septation. Beta-lactamase inactivates the PBPs by acylating an essential serine residue in the active site of these proteins, thereby interrupting normal cell wall synthesis.
Similarity
Belongs to the transpeptidase family.
Sequence
MIQMPKKNKFMNRGAAILSICFALFFFVILGRMAYIQITGKANGEVLATKATEQHEKKRTIEASRGSILDRKGKVIAEDTATYKLIAILDKKMTTDVKHPQHVVNKEKTAEALSKVINLDKADILDILNKDAKQVEFGSAGRDITYSQKQKIEKMKLPGISFLRDTKRYYPNGVFASNLIGYAEVDEETNEISGAMGLEKVLDKYLKERDGYVTYESDKSGWELPNSKNKITAPKNGDNVYLTIDQKIQTFLEDSMTKVAQKYNPKKIMAAVVDPKTGKVLAMGQRPSFDPNKRDVTNYYNDLISYAYEPGSTMKIFTLAAAMQENVFNANEKYKSGTFEVGGAPVKDHNNGVGWGPTTYHDGVLRSSNVAFAKLAKEKLGYDRLNQYLHKFNFYQKTGIDLPGEVSSKINFKYEFDKASTAYGQASAVTPIQQIQAATAIANDGKMMKPYVIDHIVDPDKDKTIYQNKPESAGTPISASTAKKVRDILGEVVTSKIGTGQAYKIEGFDVAGKTGTAQIAGKGGYLDGTDNYIFSFMGMAPKDDPELLIYVAVQQPQLKAGQSSSDPVSEIFNPTMKNSLHYLNIEPTEKSDSDKEETKAQTMPDLTDQTVAAAQKKAKEENLTPIVIGSDVAVKEQYPKADEEVLTNQKVFLKTGGKIKMPDMTGWSRREVLQYGELAGIHIEVSGQGYAVSQSVKKDKEIKDKTVIKVKFKNPD