Predicted mutation
evidence seq id position mutation annotation gene description
RA NC_002947 6,180,730 C→G W258S (TGG→TCG)  atpB ← ATP synthase subunit a

Read alignment evidence...
  seq id position ref new freq score (cons/poly) reads annotation genes product
*NC_0029476,180,7300CG96.7% 190.7 / ‑2.3 62W258S (TGG→TCG) atpBATP synthase subunit a
Reads supporting (aligned to +/- strand):  ref base C (0/1);  major base G (27/32);  minor base A (1/1);  total (28/34)
Fisher's exact test for biased strand distribution p-value = 1.00e+00
Kolmogorov-Smirnov test that lower quality scores support variant p-value = 6.13e-01

TCCCCCCGTACAGGCAGGGAAGGCTATCAGACACGCCAGGCGGTCTTAATGGTTATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCCACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAGCGATCAGGATGAACACCAGCTCGCCAGCATACATGTTGCCGAACAGACGCAGTGCCAGCGAGATCGGCTTGGCGATCAGG  >  NC_002947/6180588‑6180873
                                                                                                                                              |                                                                                                                                               
cccccccGTACAGGCAGGGAAGGCTATCAGACACGCCAGGCGGTCTTAATGGTTATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCATGATGTGGAACACAGCCGACGCCCa                                                                                                                                          <  2:1330489/149‑1 (MQ=255)
            ggcaggGAAGGCTATCAGACACGCCAGGCGGTCTTAATGGTTATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGcaccac                                                                                                                              >  1:664611/1‑150 (MQ=255)
             gcaggGAAGGCTATCAGACACGCCAGGCGGTCTTAATGGTTATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACg                                                                                                                                              >  2:864554/1‑133 (MQ=255)
             gcaggGAAGGCTATCAGACACGCCAGGCGGTCTTAATGGTTATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACg                                                                                                                                              <  1:864554/133‑1 (MQ=255)
               aggGAAGGCTATCAGACACGCCAGGCGGTCTTAATGGTTATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACAcc                                                                                                                           <  2:664611/150‑1 (MQ=255)
                 ggAAGGCTATCAGACACGCCAGGCGGTCTGAATGGTTATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCa                                                                                                                         <  1:1578007/150‑1 (MQ=255)
                     ggCTATCAGACACGCCAGGCGGTCTTAATGGTTATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCAACGCCCATTGCAGCACCACACCCAGGcc                                                                                                                     >  1:1676236/1‑150 (MQ=255)
                      gCTATCAGACACGCCAGGCGGTCTTAATGGTTATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCg                                                                                                                    >  2:506069/1‑150 (MQ=255)
                        tATCAGACACGCCAGGCGGTCTTAATGGTTATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCt                                                                                                                  >  2:436856/1‑150 (MQ=255)
                        tATCAGACACGCCAGGCGGTCTTAATGGTTATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCt                                                                                                                  <  1:1345792/150‑1 (MQ=255)
                          tCAGACACGCCAGGCGGTCTTAATGTTTATCTGCGAAAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGa                                                                                                                <  1:964686/150‑1 (MQ=255)
                          tCAGACACGCCAGGCGGTCTTAATGGTTATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGa                                                                                                                <  1:1616286/150‑1 (MQ=255)
                             gACACGCCAGGCGGTCTTAATGGTTATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGcc                                                                                                             >  1:1363958/1‑150 (MQ=255)
                              acacGCCAGGCGGTCTTAATGGTTATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGa                                                                                                                <  1:620622/146‑1 (MQ=255)
                              acacGCCAGGCGGTCTTAATGGTTATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGa                                                                                                                >  2:620622/1‑146 (MQ=255)
                                acGCCAGGCGGTCTTAATGGTTATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCcaca                                                                                                          <  2:963350/150‑1 (MQ=255)
                                  gCCAGGCGGTCTTAATGGTTATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCAcagc                                                                                                        >  2:1510554/1‑150 (MQ=255)
                                     aGGCGGTCTTAATGGTTATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAgg                                                                                                     <  1:119402/150‑1 (MQ=255)
                                         ggTCTTAATGGTTATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCgg                                                                                                 >  2:371479/1‑150 (MQ=255)
                                          gTCTTAATGGTTATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGa                                                                                                <  2:668046/150‑1 (MQ=255)
                                            cTTAATGGTTATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCAACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGc                                                                                              <  2:1676236/150‑1 (MQ=255)
                                             ttAATGGTTATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGcc                                                                                             >  1:887355/1‑150 (MQ=255)
                                             ttAATGGTTATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGcc                                                                                             >  2:77145/1‑150 (MQ=255)
                                                aTGGTTATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCGTTACATCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGaa                                                                                          >  1:1498476/1‑150 (MQ=255)
                                                 tGGTTATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGAc                                                                                                                                               <  2:738524/96‑1 (MQ=255)
                                                   gTTATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACAt                                                                                       >  2:1128020/1‑150 (MQ=255)
                                                     tATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTa                                                                                     <  1:1510554/150‑1 (MQ=255)
                                                       tctcCGGGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGACCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACa                                                                                   <  2:126960/150‑1 (MQ=255)
                                                              gAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAGCGATCa                                                                            >  1:175178/1‑150 (MQ=255)
                                                                 ccATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAGCGATCAGGa                                                                         >  1:1305874/1‑150 (MQ=255)
                                                                  cATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAGCGATCAGGAt                                                                        <  2:1135061/150‑1 (MQ=255)
                                                                         aGGTAGACGATGATCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCCACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAGCGATCAGGATGAACAcc                                                                 <  2:995118/150‑1 (MQ=255)
                                                                          ggTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAGCGATCAGGATGAACACCa                                                                <  1:436856/150‑1 (MQ=255)
                                                                           gTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGa                                                                                                >  2:268524/1‑117 (MQ=255)
                                                                           gTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGa                                                                                                <  1:268524/117‑1 (MQ=255)
                                                                           gTAGACGATGCTCAGCATCATGACGCTCTTACCTTGCAGGGTGATGACCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGNCACAGCNGGCCGGAGCCGANCATTACAGCGATCAGGATGAACACCAg                                                               <  1:1311641/150‑1 (MQ=255)
                                                                            tAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAGCGATCAGGATGAACACCAGc                                                              >  1:1715041/1‑150 (MQ=255)
                                                                              gACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGc                                                                                                    <  2:281200/110‑1 (MQ=255)
                                                                              gACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGc                                                                                                    >  1:281200/1‑110 (MQ=255)
                                                                                 gATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAGCGATCAGGATGAACACCAGCTCGcc                                                         <  2:1363958/150‑1 (MQ=255)
                                                                                      tCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAGCGATCAGGATGAACACCAGCTCGCCAGCAt                                                    >  2:779370/1‑150 (MQ=255)
                                                                                             catGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAGCGATCAGGATGAACACCAGCTCGCCAGCATACATGtt                                             <  1:77145/150‑1 (MQ=255)
                                                                                              atGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAGCGATCAGGATGAACACCAGCTCGCCAGCATACATGTTg                                            >  1:1304645/1‑150 (MQ=255)
                                                                                               tGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAGCGATCAGGATGAACACCAGCTCGCCAGCATACATGTTGc                                           <  2:887355/150‑1 (MQ=255)
                                                                                                     tGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAGCGATCAGGATGAACACCAGCTCGCCAGCATACATGTTGCCGAACa                                     <  1:371479/150‑1 (MQ=255)
                                                                                                        aaGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAGCGATCAGGAt                                                                        >  2:19123/1‑112 (MQ=255)
                                                                                                        aaGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAGCGATCAGGAt                                                                        <  1:19123/112‑1 (MQ=255)
                                                                                                            ttGCAGGGTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAGCGATCAGGATGAACACCAGCTCGCCAGCATACATGTTGCCGAACAGACGCAg                              >  2:1032383/1‑150 (MQ=255)
                                                                                                                  ggTGATGATCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAGCGATCAGGATGAACACCAGCTCGCCAGCATACATGTTGCCGAACAGACGCAGTGCCAg                        >  2:301512/1‑150 (MQ=255)
                                                                                                                       tgatCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAGCGATCAGGATGAACACCAGCTCGCCAGCa                                                     <  1:472655/116‑1 (MQ=255)
                                                                                                                       tgatCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAGCGATCAGGATGAACACCAGCTCGCCAGCa                                                     >  2:472655/1‑116 (MQ=255)
                                                                                                                         atCAGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAGCGATCAGGATGAACACCAGCTCGCCAGCATACATGTTGCCGAACAGACGCAGTGCCAGCGAGATc                 >  1:1307538/1‑150 (MQ=255)
                                                                                                                            aGGATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGTCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAGCGGTCAGGATGAACACCAGCTCGCCAGCATACATGTTGCCGAACAGACGCAGTGCCAGCGAGATCGGc              <  2:1257581/150‑1 (MQ=255)
                                                                                                                              gATGTGGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAGCGATCAGGATGAACACCAGCTCGCCAGCATACATGTTGCCGAACAGATGCAGTGCCAGCGAGATCGGCtt            <  1:779370/150‑1 (MQ=255)
                                                                                                                                tgtgGAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAGCGATCAGGATGAACACCAGCTCGCCAGCATACATGTTGCCGAACAGACGCAGTGCCAGCGAGATCGGCTTgg          <  1:1128020/150‑1 (MQ=255)
                                                                                                                                    gAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAg                                                                                  >  1:1382659/1‑74 (MQ=255)
                                                                                                                                    gAACACAGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAg                                                                                  <  2:1382659/74‑1 (MQ=255)
                                                                                                                                    gAACACAGCCGACGCCCATTGCAGCACCACACCCACGGCGCTGAGCCACATCAGGCCGGAGCCGAACATGACAGCCACGAAAAAGAACGGGAGCGCGCCAGCATACATGTTGCCGAACAGACGCAGTGCCAGCGAGATCGGCTTGGCGAt      >  1:834127/1‑150 (MQ=255)
                                                                                                                                       cacaGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAg                                                                                               >  1:838104/1‑58 (MQ=255)
                                                                                                                                       cacaGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAg                                                                                               <  2:838104/58‑1 (MQ=255)
                                                                                                                                        acaGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAGCGATCAGGATGAACACCAGCTCGCCAGCATACATGTTGCCGAACAGACGCAGTGCCAGCGAGATCGGCTTGGCGATCAgg  <  2:1304645/150‑1 (MQ=255)
                                                                                                                                        acaGCCGACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAGCGATCAGGATGAACACCAGCTCGCCAGCATACATGTTGCCGAACAGACGCAGTGCCAGCGAGATCGGCTTGGCGATCAgg  <  1:1235264/150‑1 (MQ=255)
                                                                                                                                              |                                                                                                                                               
TCCCCCCGTACAGGCAGGGAAGGCTATCAGACACGCCAGGCGGTCTTAATGGTTATCTTCGTGAGCCATCGACAGGTAGACGATGGTCAGCATCATGAAGATGAAAGCTTGCAGGGTGATGATCAGGATGTGGAACACAGCCCACGCCCATTGCAGCACCACACCCAGGCCGCTGAGCCACAGCAGGCCGGAGCCGAACATTACAGCGATCAGGATGAACACCAGCTCGCCAGCATACATGTTGCCGAACAGACGCAGTGCCAGCGAGATCGGCTTGGCGATCAGG  >  NC_002947/6180588‑6180873

Alignment Legend
Aligned base mismatch/match (shaded by quality score): ATCG/ATCG < 3 ≤ ATCG/ATCG < 22 ≤ ATCG/ATCG < 32 ≤ ATCG/ATCG < 41 ≤ ATCG/ATCG
Unaligned base: atcg    Masked matching base: atcg    Alignment gap:     Deleted base: