>sp|Q8IWT1-2|SCN4B_HUMAN Isoform 2 of Sodium channel subunit beta-4 OS=Homo sapiens OX=9606 GN=SCN4B MNNISIVLRDLEFSDTGKYTCHVKNPKENNLQHHATIFLQVVDRLEEVDNTVTLIILAVV GGVIGLLILILLIKKLIIFILKKTREKKKECLVSSSGNDNTENGLPGSKAEEKPPSKV