recombinant dna polymeraset from archaebacteria as well as isolated dna coding for such polymeraset are provided . the isolated dna is obtained by use of dna or antibody probet prepared from the dna encoding t . litoralis dna polymerate and the t . litoralis dna polymerate respectively . also provided are meshocs for producing recombinant archaebacteria thermostable dna polymerase and methods for enhancing the expression of such polymeraset by identifying , locating and removing introns from within the dna coding for such dna polymerases .