▁Gen bank ▁format ) ▁and ▁weight ▁matrix . ▁ ▁Output ▁ ▁B LA ST ▁output ▁can ▁be ▁delivered ▁in ▁a ▁variety ▁of ▁formats . ▁These ▁formats ▁include ▁HTML , ▁plain ▁text , ▁and ▁XML ▁formatting . ▁For ▁NC BI ' s ▁web - page , ▁the ▁default ▁format ▁for ▁output ▁is ▁HTML . ▁When ▁performing ▁a ▁B LA ST ▁on ▁NC BI , ▁the ▁results ▁are ▁given ▁in ▁a ▁graph ical ▁format ▁showing ▁the ▁hits ▁found , ▁a ▁table ▁showing ▁sequence ▁ident ifiers ▁for ▁the ▁hits ▁with ▁scoring ▁related ▁data , ▁as ▁well ▁as ▁align ments ▁for ▁the ▁sequence ▁of ▁interest ▁and ▁the ▁hits ▁received ▁with ▁corresponding ▁B LA ST ▁scores ▁for ▁these . ▁The ▁easiest ▁to ▁read ▁and ▁most ▁inform ative ▁of ▁these ▁is ▁probably ▁the ▁table . ▁ ▁If ▁one ▁is ▁attempting ▁to ▁search ▁for ▁a ▁propriet ary ▁sequence ▁or ▁simply ▁one ▁that ▁is ▁un available ▁in ▁databases ▁available ▁to ▁the ▁general ▁public ▁through ▁sources ▁such ▁as ▁NC BI , ▁there ▁is ▁a ▁B LA ST ▁program ▁available ▁for ▁download ▁to ▁any ▁computer , ▁at ▁no ▁cost . ▁This ▁can ▁be ▁found ▁at ▁B LA ST + ▁execut ables . ▁There ▁are ▁also ▁commercial ▁programs ▁available ▁for ▁purchase . ▁Dat ab ases ▁can ▁be ▁found ▁from ▁the ▁NC BI ▁site , ▁as ▁well ▁as ▁from ▁Index ▁of ▁B LA ST ▁databases ▁( F TP ). ▁ ▁Process ▁ ▁Using ▁a ▁he ur istic ▁method , ▁B LA ST ▁finds ▁similar ▁sequences , ▁ ▁by ▁loc ating ▁short ▁matches ▁between ▁the ▁two