>d4ktqa1 c.55.3.5 (A:294-422) Exonuclease domain of prokaryotic DNA polymerase {Thermus aquaticus} leeapwpppegafvgfvlsrkepmwadllalaaarggrvhrapepykalrdlkearglla kdlsvlalreglglppgddpmllaylldpsnttpegvarryggewteeageraalserlf anlwgrleg