These are databases v1.0 used in BacAnt(< v3.3.1).They are the actual BLAST database using makeblastdb.
Here are databases structure:
.
├── IntegronDB
│   ├── Integron.fasta    Integron reference sequences in FASTA format,sequence id must be description|accession,eg: In0|PAU49101
│   ├── Integron.nhr
│   ├── Integron.nin
│   └── Integron.nsq
├── resDB
│   ├── sequences         Resistance gene reference sequences in FASTA format,sequence id must be database name~~~gene~~~accession~~~description,eg: ncbi~~~1567214_ble~~~NG_047553.1~~~BLEOMYCIN BLMA family bleomycin binding protein
│   ├── sequences.nhr
│   ├── sequences.nin
│   └── sequences.nsq
└── TransposonDB
    ├── Transposon.fasta  Transposon reference sequences in FASTA format,sequence id must be description|accession,eg: Tn2009|CP001937
    ├── Transposon.nhr
    ├── Transposon.nin
    └── Transposon.nsq