Beta-Lactamase DataBase (BLDB): Structure and Function
Beta-Lactamase DataBase
Beta-Lactamase DataBase - Structure and Function Home Enzymes Structures Mutants Kinetics BLAST
Beta-Lactamase DataBase

Sequence alignment for the IMI-like beta-lactamase family

IMI-1
........10........20........30........40........50........60........70........80........90.......100.......110.......120.......130.......140.......150.......160.......170.......180.......190.......200.......210.......220.......230.......240.......250.......260.......270.......280.......290..
MSLNVKPSRIAILFSSCLVSISFFSQANTKGIDEIKDLETDFNGRIGVYALDTGSGKSFSYKANERFPLCSSFKGFLAAAVLKGSQDNQLNLNQIVNYNTRSLEFHSPITTKYKDNGMSLGDMAAAALQYSDNGATNIILERYIGGPEGMTKFMRSIGDKDFRLDRWELDLNTAIPGDERDTSTPAAVAKSLKTLALGNILNEREKETYQTWLKGNTTGAARIRASVPSDWVVGDKTGSCGAYGTANDYAVVWPKNRAPLIISVYTTKNEKEAKHEDKVIAEASRIAIDNLK
IMI-2....................................N....................................................................Y.......................................................................................................................................................................................... 99.32 %
IMI-3......Q.......I...F.................N........V.................................................................................................................E.........................................S.......................................................................................... 97.60 %
IMI-4............................................................................................................................................................................................................................................................................Y....................... 99.66 %
IMI-5..TTLRK.KP.F.LG.F.M...LY.Y..EN......N..KK..................A.R.................S.......K...FSE..........PN....A...EQ..P..E...........A.............V...........EE.....Y..................E..G....N........DS....................S...RE........T...............DD............Y..D....EEF.........KT.N 80.14 %
IMI-6..............I...F.................N........V.................................................................................................................E.........................................S.......................................................................................... 97.95 %
IMI-7.......................................K............................................................................................................................................................................................................................................................ 99.66 %
IMI-8..I.A.K.KA.VFL.YF.IP...Y...D.NAM....K...G.G..V...............R.............................I.E.....K....P.....Q...E....................A...............N.......E............................G....N........DH..................................T.............................S......DE...E.......TH.. 85.62 %
IMI-9....................................N..........................................................................................................................................................V...................................................................................D................ 98.97 %
IMI-10....................................N............................................................................................................................................................................................................................................................... 99.66 %
IMI-12....................................N..............................................................................................................................................................................................................................................D................ 99.32 %
IMI-13....A.....G........L................S........................R....................................S...........................................F................EV..........................IG...EN.......S..................T................................................Q.....D................ 94.18 %
IMI-14.................................................................................................................................................................................................................................................................................M.................. 99.66 %
IMI-15............................................................................................................................................................................................................................................................................TK...................... 99.32 %
IMI-16.................................D..N..............................................R......S..........T.........................................................E..................................I......S..................................................................Y....................... 96.92 %
IMI-17........K.....I...F.................N........V.................................................................................................................E.........................................S.......................................................................................... 97.60 %
IMI-18.................................D..N..............................................R......S....................................................................E..................................I......S..................................................................Y....................... 97.26 %
IMI-19.................................D..N......................T.......................R......S..........T.........................................................E..................................I......S..................................................................Y....................... 96.58 %
IMI-20................F...................N....................................................................Y.......................................................................................................................................................................................... 98.97 %
IMI-21..........G........L................S........................R....................................S............................................................EV..........................IG...EN.......S..................T................................................Q.....D................ 94.86 %
IMI-22.LF.S.....S..L..F.I....S..V.AS......K......................................................I..V...................E..................A...........................................................N........DH...I....................N..............................................N..L...T.....K... 91.44 %
IMI-23.L..T...I....L.YF.IP........AS......K..................................A...................I.......A..............E.......................................................................................SH.R.I..........................................................A........N......T.....K... 92.12 %
IMI-24..I.E.K.KS.VF..FF.IP...Y...D.NAM....K...G.G..V...............R.............................I.E.....KKN..P.....Q...E....................A...............N.......E.........A..................G....N........DH..................................T.............................S......DE...E.......TH.. 84.93 %
IMI-25..I...K.KS.VF..FF.IP...Y...D.NAM....K...G.G..V...............R.............................I.E.....K....P.....Q...E....................A...............N.......E.........A..................G....N........DH..................................T.............................S......DE...E.......TH.. 85.96 %
IMI-26....L...........F...................N....................................................................Y.......................................................................................................................................................................................... 98.63 %
IMI-27..F...S.G...F.....I.TA.......N.T...NK..K.....................R.....................SF......IY........N.........R..E...T........................................DY................................N.........D..Q.....................T..E..................I.................S......D............R... 89.04 %
IMI-28....................................K.....................................................S...T..................................................................................................................................................................................................... 98.97 %
IMI-29..F.................................N...........................................................................................................................................................NI.................................................................................................. 98.63 %
IMI-30....................................N.....................................................S...T................................................................E.................................................................................................................................... 98.63 %
IMI-31......................L.............N....................................................................Y.......................................................................................................................................................................................... 98.97 %
NmcA-1......Q...........I.................N........................R..........................R......................................................................E.........................................S.H........................................................................................ 97.26 %
A-IMI-like phylogenetic tree

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)