Predicted mutation
evidence seq id position mutation freq annotation gene description
RA NC_002947 626,572 C→A 9.7% L208L (CTG→CTT dedA ← inner membrane protein

Read alignment evidence...
  seq id position ref new freq score (cons/poly) reads annotation genes product
*NC_002947626,5720CA 9.7% 189.8 / 7.0 62L208L (CTG→CTTdedAinner membrane protein
Reads supporting (aligned to +/- strand):  ref base C (32/24);  new base A (3/3);  total (35/27)
Fisher's exact test for biased strand distribution p-value = 1.00e+00
Kolmogorov-Smirnov test that lower quality scores support variant p-value = 9.46e-01

GTCCAGCATTGGCAGCCGCTCGCGTACGGCCTGCCATTGCTGTGGCGTGATCGGGTAACGCGCCAGAGTACGCTTGCGCCGCCAGGCGCTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGCGACAGGTGCTGCTTGATGAATGGCACGTTGCCGAAGAAGTAGCCCAAGGTGACCAGGCCGCCGACCCAAAGCA  >  NC_002947/626426‑626714
                                                                                                                                                  |                                                                                                                                              
gTCCAGCATTGGCAGCCGCTCGCGTACGGCCTGCCATTGCTGTGGCGTGATCGGGTAACGCGCCAGAGTACGCTTGCGCCGCCAGGCGCTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTGGGCCGTACGGCCAAgg                                                                                                                                             <  1:767108/150‑1 (MQ=255)
gTCCAGCATTGGCAGCCGCTCGCGTACGGCCTGCCATTGCTGTGGCGTGATCGGGTAACGCGCCAGAGTACGCTTGCGCCGCCAGGCGCTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTGGGCCGTACGGCCAAgg                                                                                                                                             <  2:50117/150‑1 (MQ=255)
   cAGCATTGGCAGCCGCTCGCGTACGGCCTGCCATTGCTGTGGCGTGATCGGGTAACGCGCCAGAGTACGCTTGCGCCGCCAGGCGCTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGgcgc                                                                                                                                          >  1:582223/1‑150 (MQ=255)
                 gCTCGCGTACGGCCTGCCATTGCTGTGGCGTGATCGGGTAACGCGCCAGAGTACGCTTGCGCCGCCAGGCGCTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACgcagc                                                                                                                                 <  2:1320178/145‑1 (MQ=255)
                 gCTCGCGTACGGCCTGCCATTGCTGTGGCGTGATCGGGTAACGCGCCAGAGTACGCTTGCGCCGCCAGGCGCTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACgcagc                                                                                                                                 >  1:1320178/1‑145 (MQ=255)
                   tCGCGTACGGCCTGCCATTGCTGTGGCGTGATCGGGTAACGCGCCAGAGTACGCTTGCGCCGCCAGGCGCTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCga                                                                                                                          <  1:179047/150‑1 (MQ=255)
                     gcgagcGGCCTGCCATTGCTGTGGCGTGATCGGGTAACGCGCCAGAGTACGCTTGCGCCGCCAGGCGCTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCCGGCGCCCACCCAGCAAGCCgaga                                                                                                                        >  2:739144/6‑150 (MQ=255)
                           ggCCTGCCATTGCTGTGGCGTGATCGGGTAACGCGCCAGAGTACGCTTGCGCCGCCAGGCGCTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAatcatc                                                                                                                  <  1:353527/150‑1 (MQ=255)
                           ggCCTGCCATTGCTGTGGCGTGATCGGGTAACGCGCCAGAGTACGCTTGCGCCGCCAGGCGCTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAatcatc                                                                                                                  >  2:585690/1‑150 (MQ=255)
                              cTGCCATTGCTGTGGCGTGATCGGGTAACGCGCCAGAGTACGCTTGCGCCGCCAGGCGCTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGc                                                                                                               >  2:264461/1‑150 (MQ=255)
                               tGCCATTGCTGTGGCGTGATCGGGTAACGCGCCAGAGTACGCTTGCGCCGCCAGGCGCTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACgcag                                                                                                                                  >  2:353106/1‑130 (MQ=255)
                               tGCCATTGCTGTGGCGTGATCGGGTAACGCGCCAGAGTACGCTTGCGCCGCCAGGCGCTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACgcag                                                                                                                                  <  1:353106/130‑1 (MQ=255)
                                        tgtgGCGTGATCGGGTAACGCGCCAGAGTACGCTTGCGCCGCCAGGCGCTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCgg                                                                                                                <  2:801094/139‑1 (MQ=255)
                                        tgtgGCGTGATCGGGTAACGCGCCAGAGTACGCTTGCGCCGCCAGGCGCTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCgg                                                                                                                >  1:801094/1‑139 (MQ=255)
                                                gATCGGGTAACGCGCCAGAGTACGCTTGCGCCGCCAGGCGCTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGgatgatg                                                                                             <  2:582223/150‑1 (MQ=255)
                                                 aTCGGGTAACGCGCCAGAGTACGCTTGCGCCGCCAGGCGCTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTATGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGgatgatga                                                                                            >  1:722244/1‑150 (MQ=255)
                                                     ggTAACGCGCCAGAGTACGCTTGCGCCGCCAGGCGCTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGcc                                                                                        >  2:1220569/1‑150 (MQ=255)
                                                            cgcCAGAGTACGCTTGCGCCGCCAGGCGCTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAatcatc                                                                                                                  <  1:437805/117‑1 (MQ=255)
                                                            cgcCAGAGTACGCTTGCGCCGCCAGGCGCTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAatcatc                                                                                                                  >  2:437805/1‑117 (MQ=255)
                                                            cgcAAGAGTACGCTTGCGCCGCCAGGCGCTGACTGACCACATGCCGTGCGTTCTTAACCTGTTCAGTTAGCCTTAGCCGTACGGCCCAGTCGCCCACGCAACAAGCCGAGAACCATCGGCACCACCCACAGGATGATGATGCgcaccacc                                                                                 >  2:641112/1‑150 (MQ=255)
                                                                    tACGCTTGCGCCGCCAGGCGCTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCcca                                                                                      <  1:408277/137‑1 (MQ=255)
                                                                    tACGCTTGCGCCGCCAGGCGCTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCcca                                                                                      >  2:408277/1‑137 (MQ=255)
                                                                             gccgccAGGCGCTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGCGACAGGtgctg                                                                >  1:693983/1‑150 (MQ=255)
                                                                             gccgccAGGCGCTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACAAGCCACAGGAAGATGACTCACACCACCATCAGCGGCAGGtgctg                                                                >  2:1374720/1‑150 (MQ=255)
                                                                              ccgccAGGCGCTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGCGACAGGtgctgc                                                               >  1:949691/1‑150 (MQ=255)
                                                                               cgccAGGCGCTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGCGACAGGTgctgct                                                              >  2:1247488/1‑150 (MQ=255)
                                                                                       gcTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGCGACAGGTGCTGCTTGATGAAt                                                      <  1:585690/150‑1 (MQ=255)
                                                                                       gcTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGCGACAGGTGCTGCTTGATGAAt                                                      <  1:1220569/150‑1 (MQ=255)
                                                                                           aaTGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGc                                                                           >  2:1011664/1‑125 (MQ=255)
                                                                                           aaTGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGc                                                                           <  1:1011664/125‑1 (MQ=255)
                                                                                                ccACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACa                                                                                                     >  1:109151/1‑94 (MQ=255)
                                                                                                ccACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACa                                                                                                     <  2:109151/94‑1 (MQ=255)
                                                                                                 cacaTGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAatcat                                                                                                                   >  2:1361061/1‑79 (MQ=255)
                                                                                                 cacaTGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAatcat                                                                                                                   <  1:1361061/79‑1 (MQ=255)
                                                                                                   caTGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATc                                                                              >  2:701081/1‑114 (MQ=255)
                                                                                                   caTGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATc                                                                              <  1:701081/114‑1 (MQ=255)
                                                                                                     tGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGCGACAGGTGCTGCTTGATGAATGGCACGTTGCCgaa                                        <  1:708669/150‑1 (MQ=255)
                                                                                                      gCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGCGACAGGTGCTGCTtga                                                           >  2:22037/1‑130 (MQ=255)
                                                                                                      gCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGCGACAGGTGCTGCTtga                                                           <  1:22037/130‑1 (MQ=255)
                                                                                                        cgttcgttCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGCGACAGGTGCTGCTTGATGAATGGCACGTTGCCgaagaa                                     <  1:1247488/150‑1 (MQ=255)
                                                                                                         gttcgttcTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGCGACAGGTGCTGCTTGATGAATGGCACGTTGCCGaagaag                                    >  2:242802/1‑150 (MQ=255)
                                                                                                            cgttcTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGCGACAGGTGCTGCTTGATGAATGGCACGTTGCCGAAGAAGTAg                                 <  2:1018999/150‑1 (MQ=255)
                                                                                                              ttcTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGCGACAGGTGCTGCTTGATGAATGGCACGTTGCCGAAGAAGTAccc                               >  2:32512/1‑150 (MQ=255)
                                                                                                                     ccTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCa                                                                             <  1:468362/97‑1 (MQ=255)
                                                                                                                     ccTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCa                                                                             >  2:468362/1‑97 (MQ=255)
                                                                                                                     ccTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGAGCGCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGCGACAGGTGCTGCTTGATGAATGGCACGTTGCCGAAGAAGTAGCCCAAGGTg                        >  1:113872/1‑150 (MQ=255)
                                                                                                                        gTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGCGACAGGTGCTGCTTGATGAATGGCACGTTGCCGAAGAAGTAGCCCAAGGTGAcc                     >  2:1241038/1‑150 (MQ=255)
                                                                                                                         ttCAGTGAGCCTTGGCCGTATGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGCGACAGGTGCTGCTTGATGAATGGCACGTTGCCGAAGAAGTAGCCCAAGGTGACCa                    <  2:722244/150‑1 (MQ=255)
                                                                                                                            aGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGCGACAGGTGCTGCTTGATGAATGGCACGTTGCCGAAGAAGTAGCCCAAGGTGACCAGgc                 <  1:242802/150‑1 (MQ=255)
                                                                                                                            aGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGCGACAGGTGCTGCTTGATGAATGGCACGTTGCCGAAGAAGTAGCCCAAGGTGACCAGgc                 >  2:295967/1‑150 (MQ=255)
                                                                                                                             gTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATTGGCACCAGCGACAGGATGATGATGccc                                                                                       >  2:420124/1‑79 (MQ=255)
                                                                                                                             gTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATTGGCACCAGCGACAGGATGATGATGccc                                                                                       <  1:420124/79‑1 (MQ=255)
                                                                                                                                 gCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGCGACAGGTGCTGCTTGATGAATGGCACGTTGCCGAAGAAGTAGCCCAAGGTGACCAGGccgccg            >  2:192224/1‑150 (MQ=255)
                                                                                                                                 gCCTGGGCCGTACGGCCAAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGCGACAGGTGCTGCTTGATGAATGGCACGTTTCCGAAGAAGTAGCCCAAGTTGACCAGGccgccg            >  2:785559/1‑150 (MQ=255)
                                                                                                                                 gCCTGGGCCGTACGGCCAAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGCGACAGGTGCTGCTTGATGAATGGCACGTTGCCGAAGAAGTAGCCCAAGGTGACCAGGccgccg            >  2:756879/1‑150 (MQ=255)
                                                                                                                                   ctgggCCGTACGGCCAAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGCGACAGGTGCTGCTtga                                                           <  1:70722/98‑1 (MQ=255)
                                                                                                                                   ctgggCCGTACGGCCAAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGCGACAGGTGCTGCTtga                                                           >  2:70722/4‑101 (MQ=255)
                                                                                                                                   cTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGCGACAGGTGCTGCTTGATGAATGGCACGTTGCCGAAGAAGTAGCCCAAGGTGACCAGGCCGCCGAc          >  1:1172877/1‑150 (MQ=255)
                                                                                                                                    ttGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGCGACAGGTGCTGCTTGATGAATGGCACGTTGCCGAAGAAGTAGCCCAAGGTGACCAGGCCGCCGAcc         >  1:327285/1‑150 (MQ=255)
                                                                                                                                       gCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCa                                                                             >  2:586683/1‑79 (MQ=255)
                                                                                                                                       gCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCa                                                                             <  1:586683/79‑1 (MQ=255)
                                                                                                                                           tACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGCGACAGGTGCTGCTTGATGAATGGCACGTTGCCGAAGAAGTAGCCCAAGGTGACCAGGCCGCCGACCCAAagca  <  1:264461/150‑1 (MQ=255)
                                                                                                                                                  |                                                                                                                                              
GTCCAGCATTGGCAGCCGCTCGCGTACGGCCTGCCATTGCTGTGGCGTGATCGGGTAACGCGCCAGAGTACGCTTGCGCCGCCAGGCGCTGAATGACCACATGCCGTTCGTTCTTTACCTGTTCAGTGAGCCTTGGCCGTACGGCCCAGGCGCCCACGCAGCAAGCCGAGAATCATCGGCACCAGCGACAGGATGATGATGCCCACCACCATCAGCGACAGGTGCTGCTTGATGAATGGCACGTTGCCGAAGAAGTAGCCCAAGGTGACCAGGCCGCCGACCCAAAGCA  >  NC_002947/626426‑626714

Alignment Legend
Aligned base mismatch/match (shaded by quality score): ATCG/ATCG < 3 ≤ ATCG/ATCG < 12 ≤ ATCG/ATCG < 32 ≤ ATCG/ATCG < 41 ≤ ATCG/ATCG
Unaligned base: atcg    Masked matching base: atcg    Alignment gap:     Deleted base: