SPI-1

........10........20........30........40........50........60........70........80........90.......100.......110.......120.......130.......140.......150.......160.......170.......180.......190.......200.......210.......220.......230......... MRFNKSIFLILFLLTMAHSGFSQEPGLKIEKLTKDFYIYTTYVAYSGVKTSANALYMLSKDGVILFDTPWDPDQYQPLLDSIRNRHHQEVIAVYATHSHEDRAGGFGFFNKKGIPTYATAATNAILKADHKPEATHLIEPDKTIHIGGKQFVIKYFGEGHTADNVVVWFPKEKILDGGCLIKSSEAKNLGFVGEANVKEWPKTIRKIQQTFKKINWVIPGHDGWKQQGHLENTLKLLTQ

SPI-2	...................A...........................................................................................................................................................................................................................	99.58 %
SPI-3	.........L.....................................................................................................N..............................................................................Y................................................	98.74 %
SPI-4	.........L...................................R.................................................................N..............................................................................Y................................................	98.33 %
SPI-5	...............I........................................I.............................Q...V..............................................V.L...........I.........S............................Y.............S..................................	95.82 %
SPI-6	...............IT.....................................................................Q...V..............................................V.L...........I.........S............................Y.............S..................................	95.82 %
SPI-7	...............IT..............................I........I.............................Q...V....................R.........................V.L...........I.........S............................Y.............S..................................	94.56 %
SPI-8	...............I........................................I.............................Q...V....................R.........................V.L...........M.........S............................Y.....I.......S..................................	94.98 %
SPI-9	...S...L......I............................E..........................................Q....G...............................T.............V.LN........E.I.........S...................................H............Y............................	93.72 %

Last updated: April 06, 2026.

If you use BLDB please cite: Naas, T.; Oueslati, S.; Bonnin, R. A.; Dabos, M. L.; Zavala, A.; Dortet, L.; Retailleau, P.; Iorga, B. I., Beta-Lactamase DataBase (BLDB) – Structure and Function. J. Enzyme Inhib. Med. Chem. 2017, 32, 917-919.

The development of the BLDB database was funded in part by the JPIAMR transnational project DesInMBL, the Région Ile-de-France (DIM Malinf) and the Laboratory of Excellence in Research on Medication and Innovative Therapeutics (LERMIT).

Contact: contact@bldb.eu

Live statistics (since March 29th, 2025)