The AcrHub server comes back online on 28th October 2021 after updating a new SSL certificate on its cloud server.
  Prediction
AcrHub incoporates three predictions for prediction of Acr homologues and novel Acrs: a Hidden Markov Model (HMM) based predictor, AcRanker and PaCRISPR. Users can use the checkbox below to select one or more of the three predictors to customize different prediction scenarios.
Enter sequences  
Examples

OR

You can upload a sequence file in the FASTA format: (example.fasta)
  PaCRISPR   AcRanker   HMM based predictor  
  For normal use   For benchmarking test