Predicted mutation
evidence seq id position mutation annotation gene description
RA NC_000913 15,328 C→T intergenic (+30/‑117) dnaJ → / → insL1 chaperone protein DnaJ/IS186/IS421 family transposase

Read alignment evidence...
  seq id position ref new freq score (cons/poly) reads annotation genes product
*NC_00091315,3280CT97.1% 99.1 / ‑4.4 35intergenic (+30/‑117)dnaJ/insL1chaperone protein DnaJ/IS186/IS421 family transposase
Reads supporting (aligned to +/- strand):  ref base C (0/1);  new base T (10/24);  total (10/25)
Fisher's exact test for biased strand distribution p-value = 1.00e+00
Kolmogorov-Smirnov test that lower quality scores support variant p-value = 9.41e-01

CGCGGTAAAGGCGTCAAGTCTGTCCGCGGTGGCGCACAGGGTGATTTGCTGTGCCGCGTTGTCGTCGAAACACCGGTAGGCCTGAACGAAAGGCAGAAACAGCTGCTGCAAGAGCTGCAAGAAAGCTTCGGTGGCCCAACCGGCGAGCACAACAGCCCGCGCTCAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCCTGGGTAAAAATAGGGTGCGTTGAAGATATGCGAGCACCTGTAAAGTGGCGGGGATCACTCCCATAAGCGCTAACTTAAGGGTTGTGGTATTACGCCTGATATGATTTAACGTGCCGATGAATTACTCTCACGATAACTGGTCAGCAATTCTGGCCCATATTGGTAAGCCCGAAGAACTGGATACTTCGGCACGTAATGCCGGGGCTCTAACCCGCCGCC  >  NC_000913/15083‑15547
                                                                                                                                                                                                                                                     |                                                                                                                                                                                                                           
cgcgGTAAAGGCGTCAAGTCTGTCCGCGGTGGCGCACAGGGTGATTTGCTGTGCCGCGTTGTCGTCGAAACACCGGTAGGCCTGAACGAGAAGCAGAAACAGCTGCTGCAAGAGCTGCAAGAAAGCTTCGGTGGCCCAACCGGTGAGCACAACAGCCCGCGCTCAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGt                                                                                                                                                                                                                        >  1:144619/1‑251 (MQ=255)
           cGTCAAGTCTGTCCGCGGTGGCGCACAGGGTGCTTTGCTGTGCCGCGTTGTCGTCGAAACACCGGTAGGCCTGAACGAGAAGCAGAAACAGCTGCTGCAAGAGCTGCAAGAAAGCTTCGGTGGCCCAACCGGTGAGCACAACAGCCCGCGCTCAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTACAATTAGGGt                                                                                                                                                                                                             >  2:389847/1‑251 (MQ=255)
              cAAGTCTGTCCGCGGTGGCGCACAGGGTGATTTGCTGTGCCGCGTTGTCGTCGAAACACCGGTAGGCCTGAACGAGAAGCAGAAACAGCTGCTGCAAGAGCTGCAAGAAAGCTTCGGTGGCCCAACCGGTGAGCACAACAGCCCGCGCTCAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCg                                                                                                                                                                                                          <  1:192750/251‑1 (MQ=255)
               aaGTCTGTCCGCGGTGGCGCACAGGGTGATTTGCTGTGCCGCGTTGTCGTCGAAACACCGGTAGGCCTGAACGAGAAGCAGAAACAGCTGCTGCAAGAGCTGCAAGAAAGCTTCGGTGGCCCAACCGGTGAGCACAACAGCCCGCGCTCAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCGt                                                                                                                                                                                                         >  1:209588/1‑251 (MQ=255)
                aGTCTGTCCGCGGTGGCGCACAGGGTGATTTGCTGTGCCGCGTTGTCGTCGAAACACCGGTAGGCCTGAACGAGAAGCAGAAACAGCTGCTGCAAGAGCTGCAAGAAAGCTTCGGTGGCCCAACCGGTGAGCACAACAGCCCGCGCTCAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCGtt                                                                                                                                                                                                        <  2:86112/251‑1 (MQ=255)
                      tCCGCGGTGGCGCACAGGGTGATTTGCTGTGCCGCGTTGTCGTCGAAACACCGGTAGGCCTGAACGAGAAGCAGAAACAGCTGCTGCAAGAGCTGCAAGAAAGCTTCGGTGGCCCAACCGGTGAGCACAACAGCCCGCGCTCAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCGTTGa                                                                                                                                                                                                      >  1:111531/1‑247 (MQ=255)
                             gggggcACAGGGTTATTTGCTGTGCCGCGTTGTCGTCGAAACACCGGTAGGCCTGAACGAAAGGCAGAAACAGCTGCTGCAAGAGCTGCAAGAAAGCTTCGGTGGCCCAACCGGCGAGCACAACAGCCCGCGCTCAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCCTGGGTAAAAATAGGGTGCGTTGAAGATATGCGAg                                                                                                                                                                                           <  2:209186/247‑1 (MQ=255)
                               gcgcACAGGGTGAGTTGCTGTGCCGCGTTGTCGTCGAAACACCGGTAGGCCTGAACGAGAAGCAGAAACAGCTGCTGCAAGAGCTGCAAGAAAGCTTCGGTGGCCCAACCGGTGAGCACAACAGCCCGCGCTCAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCGTTGAAGATATGCGAGCa                                                                                                                                                                                         <  1:3840/251‑1 (MQ=255)
                                    cggggggATTTGCTGTGCCGCGTTGTCGTCGAAACACCGGTAGGCCTGAACGAGAAGCAGAAACAGCTGCTGCAAGAGCTGCAAGAAAGCTTCGGTGGCCCAACCGGTGAGCACAACAGCCCGCGCTCAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCGTTGAAGATATGCGAGCACCTga                                                                                                                                                                                    <  2:148640/245‑2 (MQ=255)
                                          gATTTGCTGGGCCGCGTTGTCGTCGAAACACCGGTAGGCCTGAACGAGAAGCAGAAACAGCTGCTGCAAGAGCTGCAAGAAAGCTTCGGTGGCCCAACCGGTGAGCACAACAGCCCGCGCTCAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCGTTGAAGATATGCGAGCACCTGAAAAGTg                                                                                                                                                                              <  2:397741/251‑1 (MQ=255)
                                                            gtcgtcGAAACACCGGTAGGCCTGAACGAGAAGCAGAAACAGCTGCTGCAAGAGCTGCAAGAAAGCTTCGGTGGCCCAACCGGTGAGCACAACAGCCCGCGCTCAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCGTTGAAGATATGCGAGCACCTGAAAAGTGGCGGGGATCACTCCCAt                                                                                                                                                             <  1:30496/250‑1 (MQ=255)
                                                              cgtcgAAACACCGGTAGGCCTGAACGAGAAGCAGAAACAGCTGCTGCAAGAGCTGCAAGAAAGCTTCGGTGGCCCAACCGGTGAGCACAACAGCCCGCGCTCAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCGTTGAAGATATGCGAGCACCTGAAAAGTGGCggggggtactccccaaa                                                                                                                                                           >  1:239046/1‑237 (MQ=255)
                                                               gtcgAAACACCGGTAGGCCTGAACGAGAAGCAGAAACAGCTGCTGCAAGAGCTGCAAGAAAGCTTCGGTGGCCCAACCGGTGAGCACAACAGCCCGCGCTCAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCGTTGAAGATATGCGAGCACCTGAAAAGTGGCgggggacacttccacacgc                                                                                                                                                         >  1:289597/1‑236 (MQ=255)
                                                                acgAAACACCGGTAGGCCTGAACGAGAAGCAGAAACAGCTGCTGCAAGAGCTGCAAGAAAGCTGCGGTGGCCCAACCGGTGAGCACAACAGCCCGCGCTCAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTTCCCGTGGGCAGGCTTGGGTAAAAGTAGGGTGCGTTGAAGATATGCGAGCACCTGAAAAGTGGCGGGGATCACTCCCATAAgct                                                                                                                                                        <  2:23449/250‑2 (MQ=255)
                                                                 cgAAACACCGGTAGGCCTGAACGAGAAGCAGAAACAGCTGCTGCAAGAGCTGCAAGAAAGCTTCGGTGGCCCAACCGGTGAGCACAACAGCCCGCGCTCAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCGTTGAAGATATGCGAGCACCTGAAAAGTGGCggggggtgcacccacaaaacc                                                                                                                                                       >  2:107717/1‑234 (MQ=255)
                                                                          ggTAGGCCTGAACGAGAAGCAGAAACAGCTGCTGCAAGAGCTGCAAGAAAGCTTCGGTGGCCCAACCGGTGAGCACAACAGCCCGCGCTCAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCGTTGAAGATATGCGAGCACCTGAAAAGTGGCGGGGGTCACTCCCCTAAACGCtcaattta                                                                                                                                               >  1:474439/1‑243 (MQ=255)
                                                                            gaGGCCTGAACGAGAAGCAGAAACAGCTGCTGCAAGAGCTGCAAGAAAGCTTCGGTGGCCCAACCGGTGAGCACAACAGCCCGCGCTCAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCGTTGAAGATATGCGAGCACCTGAAAAGTGGCGGGGATCACTCCCATAAGCGCTAACTTAAggg                                                                                                                                            <  1:128436/250‑1 (MQ=255)
                                                                                   gAACGAGAAGCAGAAACAGCTGCTGCAAGAGCTGCAAGAAAGCTTCGGTGGCCCAACCGGTGAGCACAACAGCCCGCGCTCAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCGTTGAAGATATGCGAGCACCTGAAAAGTGGCGGGGATCACTCCCATAAGCGCTAACTTAAGGGTtgtg                                                                                                                                       <  1:411383/249‑1 (MQ=255)
                                                                                                            caagagctgcaagaAAGCTTCGGTGGCCCAACCGGTGAGCACAACAGCCCGCGCTCAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCGTTGAAGATATGCGAGCACCTGAAAAGTGGCGGGGATCACTCCCATAAGCGCTAACTTAAGGGTTGTGGTATTACGCCTGATATGATTTAACGTg                                                                                                            <  1:413903/251‑1 (MQ=255)
                                                                                                             aagagctgcaagaAAGCTTCGGTGGCCCAACCGGTGAGCACAACAGCCCGCGCTCAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCGTTGAAGATATGCGAGCACCTGAAAAGTGGCGGGGATCACTCCCATAAGCGCTAACTTAAGGGTTGTGGTATTACGCCTGATATGATTTAACGTGc                                                                                                           <  1:325378/251‑1 (MQ=255)
                                                                                                                         aaaGCGTCGGTGGCCCAACCGGTGAGCACAACAGCCCGCGCTCAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTGGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCGTTGAAGAGATGCGAGCGCCTGAAAAGTGGCGGGGATCACGCCCATAATCGCTAACTTAAGGGTTGTGGTATTACGCCTGATATGATTTAACGTGCCGATGAATTAct                                                                                               <  1:45970/251‑1 (MQ=38)
                                                                                                                                  ggggCCCAACCGGTGAGCACAACAGCCCGCGCTCAAAGAGCTTCTTTGATGGTGGGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCGTTGAAGATATGCGAGCACCTGAAAAGTGGCGGGGATCACTCCCATAAGCGCTAACTTAAGGGTTGTGGTATTACGCCTGATATGATTTAACGTGCCGATGAATTACTCTCACGATa                                                                                      <  2:170041/249‑1 (MQ=255)
                                                                                                                                    ggCCCAACCGGTGAGCCCAACGGCCCGCTCTCTAAGAGCTTCTTTTATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCTCAAAATCCTGCCCGTGGGCAGGCTTGGTTAAAAGTATGGTGCGTTGAAGATATGCGAGCACCTGAATAGTGGCGTGGATCACTCCCATAAGCGCTAACTTAAGTGTTGTGGGATTACGCCTGATATGATTTAACGTGCTGATGAATTACTCTCACGATacc                                                                                    <  2:153326/251‑3 (MQ=255)
                                                                                                                                         aaCCGGTGAGCACAACAGCCCGCGCTCAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCGTTGAAGATATGCGAGCACCTGAAAAGTGGCGGGGATCACTCCCATAAGCGCTAACTTAAGGGTTGTGGTATTACGCCTGATATGATTTAACGTGCCGATGAATTACTCTCACGATAACTGGTc                                                                               <  2:239046/251‑1 (MQ=255)
                                                                                                                                             ggtgAGCACAACAGCCCGCGCTCAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTTGGTAAAATTAGGGTGCGTTGAAGATATGCGAGCACCTGAAAAGTGGCGGGGATCACTCCCATAAGCGCTAACTTAAGGGTTGTGGTATTACGCCTGATATGATTTAACGTGCCGATGAATTACTCTCACGATAACTGGTCAGCa                                                                           <  2:289597/248‑1 (MQ=255)
                                                                                                                                                gAGCACAACAGCCCGCGCTAAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCGTTGAAGATATGCGAGCACCTGAAAAGTGGCGGGGATCACTCCCATAAGCTCTAACTTAAGGGTTGTGGTATTACGCCTTATATGATTTAACGTGCCGATGAATTACTCTCACGATAACTGGTCAGCAAtt                                                                        <  1:32846/251‑1 (MQ=255)
                                                                                                                                                          gCCCGCGCGCAAAGAGCTTCTTTGATGGTGGGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCGTTGAAGATATGCGAGCACCTGAAAAGTGGCGGGGATCACTCCCATAAGCGCTAACTTAAGGGTTGTGGTATTACGCCTGATATGATTTAACGTGCCGATGAATTACTCTCACGATAACTGGTCAGCAATTCTGGCCCata                                                              <  2:83873/251‑1 (MQ=255)
                                                                                                                                                                gcTCAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCGTTGa                                                                                                                                                                                                      >  1:317830/1‑109 (MQ=255)
                                                                                                                                                                gcTCAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCGCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCGTTGa                                                                                                                                                                                                      <  2:317830/109‑1 (MQ=255)
                                                                                                                                                                     aaGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCGTTGAAGATATGCGAGCACCTGAAAAGTGGCGGGGATCACTCCCATAAGCGCTAACTTAAGGGTTGTGGTATTACGCCTGATATGATTTAACGTGCCGATGAATTACTCTCa                                                                                           <  2:137551/211‑1 (MQ=255)
                                                                                                                                                                        agCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCGTTGAAGATATGCGAGCACCTGAAAAGTGGCGGGGATCACTCCCATAAGCGCTAACTTAAGGGTTGTGGTATTACGCCTGat                                                                                                                         <  2:140974/178‑1 (MQ=255)
                                                                                                                                                                                         gaagaaGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCGTTGAAGATATGCGAGCACCTGAAAAGTGGCGGGGATCACCCCCCTAAGCGCCCACTTAAGGGGTGTGGGATTAAGCCTGGTATGATTTTACGTGCCGGTGAATTAATCTCCCCATAACTTGTTAGCAATTTTGGGCCATATTGTTAAGCCCGAAGAACTGGGTACTTccgg                               >  1:128900/1‑248 (MQ=255)
                                                                                                                                                                                                       acgacCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCGTTGAAGATATGCGAGCACCTGAAAAGTGGCGGGGATCACTCCCATAAGCGCTAACTTAAGGGTTGTGGTATTACGCCTGATATGATTTAACGTGCCGATGAATTACTCTCACGATAACTGGTCAGCAATTCTGGCCCATATTGGTaa                                                       <  1:349454/213‑1 (MQ=255)
                                                                                                                                                                                                                 ccGCTAACCGTCCCAAAAGCCTGCCCGTGTGCAGGCTTGGGTAAAATTAGGGTGCGTTGAAGATATGCGAGCACCTGAAAAGTGGCGGGGATCACTCCCATAAGCGCTAACTTAAGGGTTGTGGTATTACGCCTGATATGATTTAACGTGCCGATGAATTACTCTCACGATAACTGGTCAGCAATTCTGGCCCATATTGGTAAGCCCGAAGAACTGGATACTTCGGCACGTAATGCCGGGGCTCTAACccg       <  1:245482/251‑1 (MQ=255)
                                                                                                                                                                                                                      aaCCTCCCCAAAAGCCTGCCCGTGGGCAGGCTTGGGTAAAATTAGGGTGCGTTGAAGATATGCGAGCACCTGAAAAGTGGCGGGGATCACTCCCATAAGCGCTAACTGAAGGGTTGTGGTATTACGCCTGATATGATTTAACGTGCCGATGAATTACTCTCACGATAACTGGTCAGCAATTCTGGCCCATATTGGTAAGCCCGAAGAACTGGATACTTCGGCACGTAATGCCGGGGCTCTAACccgccgcc  <  2:209588/251‑1 (MQ=255)
                                                                                                                                                                                                                                                     |                                                                                                                                                                                                                           
CGCGGTAAAGGCGTCAAGTCTGTCCGCGGTGGCGCACAGGGTGATTTGCTGTGCCGCGTTGTCGTCGAAACACCGGTAGGCCTGAACGAAAGGCAGAAACAGCTGCTGCAAGAGCTGCAAGAAAGCTTCGGTGGCCCAACCGGCGAGCACAACAGCCCGCGCTCAAAGAGCTTCTTTGATGGTGTGAAGAAGTTTTTTGACGACCTGACCCGCTAACCTCCCCAAAAGCCTGCCCGTGGGCAGGCCTGGGTAAAAATAGGGTGCGTTGAAGATATGCGAGCACCTGTAAAGTGGCGGGGATCACTCCCATAAGCGCTAACTTAAGGGTTGTGGTATTACGCCTGATATGATTTAACGTGCCGATGAATTACTCTCACGATAACTGGTCAGCAATTCTGGCCCATATTGGTAAGCCCGAAGAACTGGATACTTCGGCACGTAATGCCGGGGCTCTAACCCGCCGCC  >  NC_000913/15083‑15547

Alignment Legend
Aligned base mismatch/match (shaded by quality score): ATCG/ATCG < 3 ≤ ATCG/ATCG < 13 ≤ ATCG/ATCG < 16 ≤ ATCG/ATCG < 34 ≤ ATCG/ATCG < 39 ≤ ATCG/ATCG
Unaligned base: atcg    Masked matching base: atcg    Alignment gap:     Deleted base: