β-LacFamPred: HMM based prediction and annotation tool for β-lactamase families

About β-lactamase

Beta-lactamases are enzymes produced by bacteria that provide multi-resistance to β-lactam antibiotics such as penicillins, cephalosporins, cephamycins, and carbapenems (ertapenem), although carbapenems are relatively resistant to beta-lactamase.

Welcome to β-LacFamPred

β-LacFamPred used for prediction and annotation of Ambler's class, subclass and 96 family of beta-lactamase (BLs) into proteins/genes sequences with complete annotation. This method was based on profile Hidden Markov Models (pHMM) which is a probalistic method it includes evolutionary information (MSA) of each family also it facilitated with detailed annotation. Perfromance of each pHMM is evaluated using leave-one-out cross-validation (LOOCV) during which 94 HMM showed 100% accuracy.

Here we describe a novel profile HMM based in-silico tool, β-LacFamPred, to predict β-lactamase familes using protein/gene sequences. The β-lacFamPred standalone software and web-server are freely available for academic use under GNU GPL.



β-LacFamPred Predicts

  • CLASS A Serine β-lactamase Families
  • CLASS B Metallo β-lactamase Families
  • CLASS C Serine β-lactamase Families
  • CLASS D Serine β-lactamase families


  • β-LacFamPred Facilitate

    Search Protein/Gene ImageClick here

    Find the family of Beta-lactamase family of your proteins/gene sequence.

    Supporting Files ImageClick here

    Get the and Sequences, MSAs & HMM models of all families.

    Need Additional information & Help ImageClick here

    How to search and analyze in the β-LacFamPred?

    Latest Updates

    Oct 12, 2022

    β-LacFamPred V2.0*

    New release

    Jan 15, 2022

    β-LacFamPred V1.0

    First release

    Cite Us

    Copyright © 2022 Department of Biophysics, University of Delhi South Campus