Predicted mutation
evidence seq id position mutation annotation gene description
RA BS168_reference_genome 1,580,038 (T)9→8 intergenic (+43/‑83) bshC → / → mraZ malate glucosamine cysteine ligase/inhibitor of RsmH and transcriptional regulator

Read alignment evidence...
  seq id position ref new freq score (cons/poly) reads annotation genes product
*BS168_reference_genome1,580,0300T.100.0% 250.2 / NA 55intergenic (+35/‑91)bshC/mraZmalate glucosamine cysteine ligase/inhibitor of RsmH and transcriptional regulator
Reads supporting (aligned to +/- strand):  ref base T (0/0);  new base . (19/36);  total (19/36)

TCATGTATTATTTGAACAGGTACGGTCCAAAATTCTTCACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGAAGTGGTGAATAGTGGTGAGTTAAGGAGAGAAAGTGGGGCAAGAGATCATGTTTATGGGTGAATATCAGCATACCATCGATGCGAAAGG  >  BS168_reference_genome/1579898‑1580161
                                                                                                                                    |                                                                                                                                   
tCATGTATTATTTGAACAGGTACGGTCCAAAATTCTTCACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGttttttt                                                                                                                               >  1:41360/1‑139 (MQ=255)
tCATGTATTATTTGAACAGGTACGGTCCAAAATTCTTCACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGttttttt                                                                                                                               >  1:44246/1‑139 (MQ=255)
tCATGTATTATTTGAACAGGTACGGTCCAAAATTCTTCACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGttttttt                                                                                                                               <  2:41360/139‑1 (MQ=255)
  aTGTATTATTTGAACAGGTACGGTCCAAAATTCTTCACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGtttttttta                                                                                                                             <  6:196463/139‑2 (MQ=255)
  aTGTATTATTTGAACAGGTACGGTCCAAAATTCTTCACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGtttttttta                                                                                                                             <  8:214074/139‑2 (MQ=255)
  aTGTATTATTTGAACAGGTACGGTCCAAAATTCTTCACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGtttttttta                                                                                                                             <  2:232617/139‑2 (MQ=255)
          tttGAACAGGTACGGTCCAAAATTCTTCACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTaaa                                                                                                                    >  5:116889/1‑139 (MQ=255)
          tttGAACAGGTACGGTCCAAAATTCTTCACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTaa                                                                                                                     >  6:267765/1‑138 (MQ=255)
          tttGAACAGGTACGGTCCAAAATTCTTCACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTACAGGGTTTTTTTTATGGGTaaa                                                                                                                    >  7:291914/1‑139 (MQ=255)
          tttGAACAGGTACGGTCCAAAATTCTTCACGACATTCAAGAATCTGCCATTATCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTaaa                                                                                                                    <  7:76975/139‑1 (MQ=255)
             gAACAGGTACGGTCCAAAATTCTTCACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCACGGTTTTTTTTATTGGTAAACAg                                                                                                                 >  8:246511/1‑139 (MQ=255)
               aCAGGTACGGTCCAAAATTCTTCACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAgtg                                                                                                               >  8:179727/1‑139 (MQ=255)
               aCAGGTACGGTCCAAAATTCTTCACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAgtg                                                                                                               >  5:310968/1‑139 (MQ=255)
               aCAGGTACGGTCCAAAATTCATCACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTTTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAgtg                                                                                                               <  7:214338/139‑1 (MQ=255)
                   gTACGGTCCAAAATTCTTCACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTaa                                                                                                            >  2:272383/1‑138 (MQ=255)
                      cGGTCCAAAATTCTTCACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATg                                                                                                        <  4:214374/139‑1 (MQ=255)
                        gTCCAAAATTCTTCACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATg                                                                                                        >  3:123936/1‑137 (MQ=255)
                         tCCAAAATTCTTCACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAg                                                                                                     <  1:272383/139‑1 (MQ=255)
                             aaaTTCTTCACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAg                                                                                                     <  8:29947/135‑1 (MQ=255)
                             aaaTTCTTCACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAg                                                                                                     >  1:85868/1‑135 (MQ=255)
                             aaaTTCTTCACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAg                                                                                                     <  2:85868/135‑1 (MQ=255)
                             aaaTTCTTCACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAg                                                                                                     >  7:29947/1‑135 (MQ=255)
                             aaaTTCTTCACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTtgt                                                                                                 >  1:194904/1‑139 (MQ=255)
                                   ttcACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGc                                                                                            >  6:85684/1‑138 (MQ=255)
                                   ttcACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGc                                                                                            >  7:95582/1‑138 (MQ=255)
                                     cACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGtttttttta                                                                                                                             <  8:177589/104‑2 (MQ=255)
                                     cACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGtttttttta                                                                                                                             >  7:177589/1‑103 (MQ=255)
                                     cACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCg                                                                                           <  5:73177/137‑1 (MQ=255)
                                     cACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCg                                                                                           <  1:56583/137‑1 (MQ=255)
                                     cACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCg                                                                                           <  6:310968/137‑1 (MQ=255)
                                      aCGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGaa                                                                                         <  7:246511/138‑1 (MQ=255)
                                      aCGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGaa                                                                                         <  2:97980/138‑1 (MQ=255)
                                      aCGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGaa                                                                                         <  2:55093/138‑1 (MQ=255)
                                      aCGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGaa                                                                                         <  5:85684/138‑1 (MQ=255)
                                      aCGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGAAg                                                                                        <  7:110186/139‑1 (MQ=255)
                                        gACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGAAgtg                                                                                      <  2:40363/139‑1 (MQ=255)
                                             tCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAg                                                                                                     >  7:96166/1‑119 (MQ=255)
                                             tCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAg                                                                                                     <  8:96166/119‑1 (MQ=255)
                                              cAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGAAGTGGTGaa                                                                                 <  7:130684/138‑1 (MQ=255)
                                              cAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGAAGTGGTGaa                                                                                 <  5:76527/138‑1 (MQ=255)
                                                  aaTCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGAAGTGGTGAATAgtg                                                                            <  6:116889/139‑1 (MQ=255)
                                                  aaTCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGAAGTGGTGAATAgtg                                                                            <  6:45050/139‑1 (MQ=255)
                                                   aTCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGAAGTGGTGAATAgtg                                                                            <  4:123936/138‑1 (MQ=255)
                                                      tGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTa                                                                                                             <  7:181300/102‑1 (MQ=255)
                                                      tGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTa                                                                                                             >  8:181300/1‑102 (MQ=255)
                                                      tGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGAAGTGGTGAATAgtggt                                                                          >  5:275337/1‑137 (MQ=255)
                                                      tGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGAAGTGGTGAATAgtggt                                                                          >  8:25686/1‑137 (MQ=255)
                                                        ccATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGTGAAGTGGTGAATAgtggt                                                                          <  2:128765/135‑1 (MQ=255)
                                                        ccATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGAAGTGGTGAATAgtggt                                                                          <  8:95582/135‑1 (MQ=255)
                                                                                 aaGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGAAGTGGTGAATAGTGGTGAGTTAAGGAGAGAAAGTGGGGCAAgaga                                             <  8:257694/139‑1 (MQ=255)
                                                                                   gTTGTCAAACTTTGAAATAAAGTTTTATAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGAAGTGGTGAATAGTGGTGAGTTAAGGAGAGAAAGTGGGGCAAGAGATc                                           <  2:38683/139‑1 (MQ=255)
                                                                                   gTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGAAGTGGTGAATAGTGGTGAGTTAAGGAGAGAAAGTGGGGCAAGAGATc                                           <  2:44246/139‑1 (MQ=255)
                                                                                   gTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGAAGTGGGGAATAGTGGTGAGTTAAGGAGAGAAAGTGGGGCAAGAGATc                                           <  5:267765/139‑1 (MQ=255)
                                                                                          aaCTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGAAGTGGTGAATAGTGGTGAGTTAAGGAGAGAAAGTGGGGCAAGAGATCATGTTTa                                    <  7:179727/139‑1 (MQ=255)
                                                                                                 aaaTAAAGTTTTAAAGAACCCTGACTAGTTCAGTGTTTTTTTTATGTGTATACAGTGTAAAATGAAGTTGCGGAGCGTAGTGGTGAATAGTGGTGAGTTAAGGAGAGAAAGTGGGGCAAGAGATCATGTTTATGGGTg                              <  4:98002/138‑1 (MQ=255)
                                                                                                      aaGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGAAGTGGTGAATAgtggt                                                                          >  2:205493/1‑89 (MQ=255)
                                                                                                      aaGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGAAGTGGTGAATAgtggt                                                                          <  1:205493/89‑1 (MQ=255)
                                                                                                        gTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATTAAGTTGTGGAGCTAAGTGGTGAATAGTGGTGAGTTAAGGAGAGAAAGTGGGGCAAGATATCATGTTTATGGGTGAATATCAg                      <  8:263043/139‑1 (MQ=255)
                                                                                                                gAACCCTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGAAGTGGTGAATAGTGGTGAGTTAAGGAGAGAAAGTGGGGCAAGAGATCATGTTTATGGGTGAATATCAGCATACCAt              <  4:33943/139‑1 (MQ=255)
                                                                                                                   cccTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGAAGTGGTGAATAgtggt                                                                          >  3:262405/1‑76 (MQ=255)
                                                                                                                   cccTGACTAGTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGAAGTGGTGAATAgtggt                                                                          <  4:262405/76‑1 (MQ=255)
                                                                                                                            gTTCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGAAGTGGTGAATAGTGGTGAGTTAAGGAGAGAAAGTGGGGCAAGAGATCATGTTTATGGGTGAATATCAGCATACCATCGATGCGAAAgg  <  5:99594/139‑1 (MQ=255)
                                                                                                                             ttCAGGGTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGAAGTGGTGAATAGTGGTGAGTTAAGGAGAGAAAGTGGGGCAAGAGATCATGTTTATGGGTGAATATCAGCATACCATCGATGCGAAAgg  <  8:291914/138‑1 (MQ=255)
                                                                                                                                    |                                                                                                                                   
TCATGTATTATTTGAACAGGTACGGTCCAAAATTCTTCACGACATTCAAGAATCTGCCATTTTCTTTTCAAAATCAACATCAAGTTGTCAAACTTTGAAATAAAGTTTTAAAGAACCCTGACTAGTTCAGGGTTTTTTTTTATGGGTAAACAGTGTAAAATGAAGTTGTGGAGCGAAGTGGTGAATAGTGGTGAGTTAAGGAGAGAAAGTGGGGCAAGAGATCATGTTTATGGGTGAATATCAGCATACCATCGATGCGAAAGG  >  BS168_reference_genome/1579898‑1580161

Alignment Legend
Aligned base mismatch/match (shaded by quality score): ATCG/ATCG < 3 ≤ ATCG/ATCG < 14 ≤ ATCG/ATCG < 21 ≤ ATCG/ATCG < 32 ≤ ATCG/ATCG < 36 ≤ ATCG/ATCG
Unaligned base: atcg    Masked matching base: atcg    Alignment gap:     Deleted base: