>d1ktq_1 c.55.3.5 (290-422) Exonuclease domain of prokaryotic DNA polymerase {Thermus aquaticus} spkaleeapwpppegafvgfvlsrkepmwadllalaaarggrvhrapepykalrdlkear gllakdlsvlalreglglppgddpmllaylldpsnttpegvarryggewteeageraals erlfanlwgrleg