XRCC4 GI:12408649 X-ray repair cross complementing protein 4 isoform 1 1 merkisrihl vsepsithfl qvswektles gfvitltdgh sawtgtvses 50 51 eisqeaddma mekgkyvgel rkallsgagp advytfnfsk escyfffekn 100 101 lkdvsfrlgs fnlekvenpa evirelicyc ldtiaenqak nehlqkener 150 151 llrdwndvqg rfekcvsake aletdlykrf ilvlnekktk irslhnklln 200 201 aaqerekdik qegetaicse mtadrdpvyd estdeesenq tdlsglasaa 250 251 vskddsiiss ldvtdiapsr krrqrmqrnl gtepkmapqe nqlqekekpd 300 301 sslpetskke hisaenmsle tlrnsspedl fdei