Predicted mutation
evidence seq id position mutation annotation gene description
RA NC_000913 274,939 G→A A48V (GCT→GTT)  insH1 ← IS5 family transposase and trans‑activator

Read alignment evidence...
  seq id position ref new freq score (cons/poly) reads annotation genes product
*NC_000913274,9390GA100.0% 101.3 / NA 32A48V (GCT→GTT) insH1IS5 family transposase and trans‑activator
Reads supporting (aligned to +/- strand):  ref base G (0/0);  new base A (22/10);  total (22/10)

GCGCCATCGCTCAGGTTGTACCAATGCTGCATGCAGTGAATGCGTAGCATGGTTTCCAGCGGATAAGGTCGCCGGCCATTACCAGCCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGGCAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTCCAGATGACAAACATGATCTCATATCAGGGACTTGTTCGCACCTTCCGGAGGCGTTATGAGCTGGCGGCCCTTTTTGTATCTGATTATTAATCCCCACCCGCTATTAAGCGCCCGGCGCGGGCATCTGCGT  >  NC_000913/274855‑275233
                                                                                    |                                                                                                                                                                                                                                                                                                      
gcgcCATCGCTCAGGTTGTACCAATGCTGCATGCAGTGAATGCGTAGCATGGTTTCCAGCGGATAAGGTCGCCGGCCATTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTCCAGATGACAAACATGATCTCATATCAGGGACTTGTTCGCACCTTCCGGAgg                                                                                 <  2:136398/300‑1 (MQ=14)
gcgcCATCGCTCAGGTTGTACCAATGCTGCATGCAGTGAATGCGTAGCATGGTTTCCAGCGGATAAGGTCGCCGGCCATTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTCCAGATGACAAACATGATCTCATATCAGGGACTTGTTCGCACCTTCCGGAgg                                                                                 <  1:60780/300‑1 (MQ=14)
       cGCTCAGGTTGTACCAATGCTGCATGCAGTGAATGCGTAGCATGGTTTCCAGCGGATAAGGTCGCCGGCCATTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTCCAGATGACAAACATGATCTCATATCAGGGACTTGTTCGCACCTTCCGGAGGCGTTATg                                                                          >  1:437813/1‑300 (MQ=21)
       cGCTCAGGTTGTACCAATGCTGCATGCAGTGAATGCGTAGCATGGTTTCCAGCGGATAAGGTCGCCGGCCATTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTCCAGATGACAAACATGATCTCATATCAGGGACTTGTTCGCAACTTCCGGAGGCGTTATg                                                                          >  2:242866/1‑300 (MQ=21)
         cTCAGGTTGTACCAATGCTGCATGCAGTGAATGCGTAGCATGGTTTCCAGCGGATAAGGTCGCCGGCCATTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTCCAGATGACAAACATGATCTCATATCAGGGACTTGTTCGCACCTTCCGGAGGCGTTATGAg                                                                        <  1:726955/300‑1 (MQ=21)
          tCAGGTTGTACCAATGCTGCATGCAGTGAATGCGTAGCATGGTTTCCAGCGGATAAGGTCGCCGGCCATTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTNCTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTCCAGATGACAAACATGATCTCATATCAGGGNCTTGTTCGCACCTTCCGGAGGCGTTATGAGc                                                                       <  2:542098/300‑1 (MQ=25)
          tCAGGTTGTACCAATGCTGCATGCAGTGAATGCGTAGCATGGTTTCCAGCGGATAAGGTCGCCGGCCATTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTCCAGATGACAAACATGATCTCATATCAGGGACTTGTTCGCACCTTCCGGAGGCGTTATGAGc                                                                       <  1:243760/300‑1 (MQ=25)
             ggTTGTACCAATGCTGCATGCAGTGAATGCGTAGCATGGTTTCCAGCGGATAAGGTCGCCGGCCATTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTCCAGATGACAAACATGATCTCATATCAGGGACTTGTTCGCCCCTTCCGGAGGCGTTATGAGCTgg                                                                    >  2:726511/1‑300 (MQ=255)
             ggTTGTACCAATGCTGCATGCAGTGAATGCGTAGCATGGTTTCCAGCGGATAAGGTCGCCGGCCATTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTCCAGATGACAAACATGATCTCATATCAGGGACTTGTTCGCACCTTCCGGAGGCGTTATGAGCTgg                                                                    >  1:118705/1‑300 (MQ=37)
             ggTTGTACCAATGCTGCATGCAGTGAATGCGTAGCATGGTTTCCAGCGGATAAGGTCGCCGGCCATTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTCCAGATGACAAACATGATCTCATATCAGGGACTTGTTCGCAACTTCCGGAGGCGTTATGAGCTgg                                                                    >  2:114526/1‑300 (MQ=255)
                 gTACCAATGCTGCATGCAGTGAATGCGTAGCATGGTTTCCAGCGGATAAGGTCGCCGGCCATTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTCCAGATGACAAACATGATCTCATATCAGGGACTTGTTCGCACCTTCCGGAGGCGTTATGAGCTggcggc                                                                >  1:701905/1‑300 (MQ=255)
                    ccAATGCTGCATGCAGTGAATGCGTAGCATGGTTTCCAGCGGATAAGGTCGCCGGCCATTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTCCAGATGACAAACATGATCTCATATCAGGGACTTGTTCGCACCTTCCGGAGGCGTTATGAGCTGGCGGCCCt                                                             >  1:353418/1‑300 (MQ=255)
                       aTGCTGCATGCAGTGAATGCGTAGCATGGTTTCCAGCGGATAAGGTCGCCGGCCATTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTCCAGATGACAAACATGATCTCATATCAGGGACTTGTTCGCACCTTCCGGAGGCGTTATGAGCTGGCGGCCCtttt                                                          >  1:341182/1‑300 (MQ=255)
                       aTGCTGCATGCAGTGAATGCGTAGCATGGTTTCCAGCGGATAAGGTCGCCGGCCATTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTCCAGATGACAAACATGATCTCATATCAGGGACTTGTTCGCACCTTCCGGAGGCGTTATGAGCTGGCGGCCCtttt                                                          >  2:101992/1‑300 (MQ=255)
                         gctgcATGCAGTGAATGCGTAGCATGGTTTCCAGCGGATAAGGTCGCCGGCCATTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAGATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCATGTTCTATGGCTCCAGATGACAAACACGATCTCATATCAGGGACTTGTTCGCACCTTCCGGAGGCGTTATGAGTTGGCGGCCCTTTTTg                                                        >  1:128107/1‑300 (MQ=255)
                           tgcatgcaGTGAATGCGTAGCATGGTTTCCAGCGGATAAGGTCGCCGGCCATTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTCCAGATGACAAACATGATCTCATATCAGGGACTTGTTCGCACCTTCCGGAGGCGTTATGAGCTGGCGGCCCTTTTTGTa                                                      >  1:31498/1‑300 (MQ=255)
                               tgcaGTGAATGCGTAGCATGGTTTCCAGCGGATAAGGTCGCCGGCCATTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTCCAGATGACAAACATGATCTCATATCAGGGACTTGTTCGCACCTTCCGGAGGCGTTATGAGCTGGCGGCCCTTTTTGTATCTg                                                  >  1:452847/1‑300 (MQ=255)
                                 caGTGAATGCGTAGCATGGTTTCCAGCGGATAAGGTCGCCGGCCATTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTCCAGATGACAAACATGATCTCATATCAGGGACTTGTTCGCACCTTCCGGAGGCGTTATGAGCTGGCGGCCCTTTTTGTATCTGat                                                >  2:733418/1‑300 (MQ=255)
                                   gTGAATGCGTAGCATGGTTTCCAGCGGATAAGGTCGCCGGCCATTAACAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGCCTCATGATGAACCCTGTTCTATGGCTCCAGCTGACAAACATGATCTCATATCAGGGACTTGTTCGCAACTTACGGAGGCGTTATGAGCTGGCGGCCCTTTTTGTATCTGatta                                              >  1:194813/1‑300 (MQ=255)
                                       aTGCGTAGCATGGTTTCCAGCGGATAAGGTCGCCGGCCATTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAANCCTGTTCTATGGCTCCAGATGACAAACATGATCTCATATCAGGGACTTGTTCGCACCTTCCGGAGGCGTTATGAGCTGGCGGCCCTTTTTGTATCTGATTATTaa                                          >  2:656182/1‑300 (MQ=255)
                                          cGTAGCATGGTTTCCAGCGGATAAGGTCGCCGGCCATTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTGGATTACTCATGATGAACCCTGTTCTATGGCTCCAGACGACAAACATGATCTCATATCAGGGACTTGTTCGCACCTTCCGGAGGCGTTATGAGCTGGCGGCCCTTTTTGTATCTGATTATTAATcc                                       <  1:499392/300‑1 (MQ=255)
                                           gTAGCATGGTTTCCAGCGGATACGTTCGCCGGCCATTACCAACCTTTGGGTAAAACGGCTTGATGGCGTCCATCATGGTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTCTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTGTGGCTCCAGATGACAAACATGATCTCATATCAGGGACTTGTTCGCACCTTCCGGAGGCGTTATGAGCTGGCGGCCCTTTTTGTATCTGATTATTAATccc                                      <  2:405548/300‑1 (MQ=17)
                                           gTAGCATGGTTTCCAGCGGATAAGGTCGCCGGCCATTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTCCAGATGACAAACATGATCTAATATCAGGGACTTGTTCGCACCTTCCGGAGGCGTTATGAGCTGGCGGCCCTTTTTGTATCTGATTATTAATccc                                      >  2:107682/1‑300 (MQ=255)
                                                aTGGTTTCCAGCGGATAAGGTCGCCGGCCATTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTCCAGATGACAAACATGATCTCATATCAGGGACTTGTTCGCACCTTCCGGAGGCGTTATGAGCTGGCGGCCCTTTTTGTATCTGATTATTAATCCCCAccc                                 <  1:490243/300‑1 (MQ=255)
                                                   gTTTCCAGCGGATAAGGTCGCCGGCCATTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCNATGGCTCCAGATGACAAACATGATCTCATATCAGGGACTTGTTCGCACCTTCCGGAGGCGTTATGAGCTGGCGGCCCTTTTTGTATCTGATTATTAATCCCCACCCGCt                              >  1:525336/1‑300 (MQ=255)
                                                          gCGGATAAGGTCGCCGGCCATTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTCCAGATGACAAACATGATCTCATATCAGGGACTTGTTCGCACCTTCCGGAGGCGTTATGAGCTGGCGGCCCTTTTTGTATCTGATTATTAATCCCCACCCGCTATTAAgc                       <  2:337007/300‑1 (MQ=255)
                                                          gCGGATAAGGTCGCCGGCCATTACCAAACTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTATGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTACAGATGACAAACATGATCTCATATCAAGGACTTGTTCGCACCTTCCGGAGGCGTTATGAGCTGGCGGCCCTTTTTGTATCTGATTATTAATCCCCACCCGCTATTAAgc                       >  2:130935/1‑300 (MQ=255)
                                                            ggATAAGGTCGCCGGCCATTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTCCAGATGACAAACATGATCTCATATCAGGGACTTGTTCGCACCTTCCGGAGGCGTTATGAGCTGGCGGCCCTTTTTGTATCTGATTATTAATCCCCACCCGCTATTAAgcgc                     >  1:566506/1‑300 (MQ=255)
                                                            ggATAAGGTCGCCGGCCATTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTCCAGATGACAAACATGATCTAATATCAGGGACTTGTTCGCACCTTCCGGAGGCGTTATGAGCTGGCGGCACTTTTTGTATCTGATTATTAATCCCCACCCGCTATTAAgcgc                     >  2:199446/1‑300 (MQ=255)
                                                                         ggCCATTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTCCAGATGACAAACATGATCTCATATCAGGGACTTGTTCGCACCTTCCGGAGGCGTTATGAGCTGGCGGCCCTTTTTGTATCTGATTATTAATCCCCACCCGCTATTAAGCGCCCGGCGCGGGCAt        >  1:693152/1‑300 (MQ=255)
                                                                             aTTACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTCCAGATGACAAACATGATCTCATATCAGGGACTTGTTCGCACCTTCCGGAGGCGTTATGAGCTGGCGGCCCTTTTTGTATCTGATTATTAATCCCCACCCGCTATTAAGCGCCCGGCGCGGGCATCTGc    >  1:364269/1‑300 (MQ=255)
                                                                               tACCAACCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGACAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTCCAGATGACAAACATGATCTCATATCAGGGACTTGTTCGCACCTTCCGGAGGCGTTATGAGCTGGCGGCCCTTTTTGTATCTGATTATTAATCCCCACCCGCTATTAAGCGCCCGGCGCGGGCATCTGCGt  <  1:77770/300‑1 (MQ=255)
                                                                                    |                                                                                                                                                                                                                                                                                                      
GCGCCATCGCTCAGGTTGTACCAATGCTGCATGCAGTGAATGCGTAGCATGGTTTCCAGCGGATAAGGTCGCCGGCCATTACCAGCCTTGGGGTAAAACGGCTCGATGACTTCCACCATGTTTTGCCATGGCAGAATCTGCTCCATGCGGGACAAGAAAATCTCTTTTCTGGTCTGACGGCGCTTACTGCTGAATTCACTGTCGGCGAAGGTAAGTTGATGACTCATGATGAACCCTGTTCTATGGCTCCAGATGACAAACATGATCTCATATCAGGGACTTGTTCGCACCTTCCGGAGGCGTTATGAGCTGGCGGCCCTTTTTGTATCTGATTATTAATCCCCACCCGCTATTAAGCGCCCGGCGCGGGCATCTGCGT  >  NC_000913/274855‑275233

Alignment Legend
Aligned base mismatch/match (shaded by quality score): ATCG/ATCG < 3 ≤ ATCG/ATCG < 24 ≤ ATCG/ATCG < 40 ≤ ATCG/ATCG
Unaligned base: atcg    Masked matching base: atcg    Alignment gap:     Deleted base: