POLB GI:4505931 DNA-directed DNA polymerase beta 1 mskrkapqet lnggitdmlt elanfeknvs qaihkynayr kaasviakyp 50 51 hkiksgaeak klpgvgtkia ekideflatg klrklekirq ddtsssinfl 100 101 trvsgigpsa arkfvdegik tledlrkned klnhhqrigl kyfgdfekri 150 151 preemlqmqd ivlnevkkvd seyiatvcgs frrgaessgd mdvllthpsf 200 201 tsestkqpkl lhqvveqlqk vhfitdtlsk getkfmgvcq lpskndekey 250 251 phrridirli pkdqyycgvl yftgsdifnk nmrahalekg ftineytirp 300 301 lgvtgvagep lpvdsekdif dyiqwkyrep kdrse