SCN3B GI:9055238 voltage-gated sodium channel beta-3 subunit precursor 1 mpafnrlfpl aslvliywvs vcfpvcvevp seteavqgnp mklrciscmk 50 51 reeveattvv ewfyrpeggk dfliyeyrng hqevespfqg rlqwngskdl 100 101 qdvsitvlnv tlndsglytc nvsrefefea hrpfvkttrl iplrvteeag 150 151 edftsvvsei mmyillvflt lwlliemiyc yrkvskaeea aqenasdyla 200 201 ipsenkensa vpvee