Protein
Sodium channel protein type 4 subunit alpha A
Organism
Takifugu rubripes
Function
Pore-forming subunit of a voltage-gated sodium channel complex through which Na(+) ions pass in accordance with their electrochemical gradient. Alternates between resting, activated and inactivated states. Required for normal muscle fiber excitability, normal muscle contraction and relaxation cycles.
Similarity
Belongs to the sodium channel (TC 1.A.1.10) family. Nav1.4/SCN4A subfamily.
Sequence
MATILPPPGTALFRHFTRQSLATIERLKEETLIAPKAGAHEEEEPPTPNPDLEAGKSLPMIFGDPPSELLGTPLEDIDPFYKAQKTFVVVTKGNTIYRFNAEPACYILSPFSLVRRGAIKILIHSLFSTLIMITILSNCVFMTMSNPPAWSKTVEYVFTGIYTFEATVKVLSRGFCVGPFTFLRDPWNWLDFMVISMAYITEFVDLGNVSALRTFRVLRALKTITVIPGLKTIVAALIQSVKKMVDVMILTVFALAVFALVGLQLFMGNLRHKCIRWPIANETASELFNGTVFNDTLSYNDTTWLNDTLDSNSTFDFTEYIENAENQYFLEGSKDALLCGNSTDAGKCPEGYLCMKAGRNPNYGYTSFDSFGWAFLALFRLMTQDNWESLFQLTLRAAGQTYMLFFVVVIFLGSFYLINLILAVVAMAYDEQNQASQQEAKEKEEEFQRLLEQLKNQEQAQVLGSRASLTSKKSVSLTGSDVADDEQSLENNEALKDCNGRPIPRLIIRAPTMKESAADYELREKEESSVHSVLHLDEPGLRERSASVATAAASVATAAASVATAAAMEELEEAQRPCPPIWYRFADIFLKWNCCEKWVVFKKWVHFVVMDPFVDLAITICIVLNTLFMAMEHYPMTEEFDYMLSVGNLVFTGIFAAEMFFKLIAMDPYYYFQVGWNIFDSIIVTLSLVELGLANVQGLSVLRSFRLLRVFKLAKSWPTLNMLIKIIGNSVGALGNLTLVLAIIVFIFAVVGMQLFGKSYKDCVCKISSDCELPRWHMNDFFHSFLIVFRILCGEWIETMWDCMEVAGAGMCLVVFMMVMVIGNLVVLNLFLALLLSSFSGDNLSVGDDDGELNNLQIAIGRITRGGNWLKAFLIGTVQRVLGREPQKPAEEDPADEGEGKTEGMEMNHLDGFKLADGIANCLVGGQPSGVTLDGESSITVPIALGESDSENPSEDDDDQEDDVDSEVTCEENEHHSDGVEDEFGVLQHVKLMGALTDGDSSVCSTVDYQPPEPEVQEEEEEEPDLVEPEACFTDNCVKRWPCLNVDISQGKGKKWWNLRKTCFTIVEHDWFETFIIFMILLSSGALAFEDIYIERRRTVKIVLEFADKVFTFIFVIEMLLKWVAYGFKTYFTNAWCWLDFFIVDISLISLSANLMGFSDLGPIKSLRTLRALRPLRALSRFEGMRVVVNALIGAIPSIFNVLLVCLIFWLIFSIMGVNLFAGKFYRCINTTTAELFPISVVNNKSDCVALQEATQEARWVNVKVNYDNVAKGYLSLLQIATFKGWMDIMYPAVDSREVEEQPSYEINLYMYIYFVIFIIFGSFFTLNLFIGVIIDNFNQQKKKLGDKDIFMTEEQKKYYEAMKKLGSKKPQKPIPRPANLIQGLVFDFISQQFFDIFIMVLICLNMVTMMVETDDQSPAKEDFLFKVNVAFIVVFTGECTLKLFALRHYFFTNGWNIFDFIVVILSIAGTMLSDIIEKYFVSPTLFRVIRLARIGRILRLIKGARGIRTLLFALMMSLPALFNIGLLLFLIMFIFSIFGMSNFAYVKKEAGINDMFNFETFGSSIICLFQITTSAGWDTLLLPMLNKEPPDCDPAFENPGTDVKGNCGNPMMGMVFFCSYIIISFLVVVNMYIAIILENFNVAQEESGDVLCEEDFEMFNETWEKFDTGGTQFIEYSQLSDFCDALQEPLRVAKPNRQRLIEMDLPLVIGDRIHCVDVLLAVTQEVLGDTIEMVAMRESIEAKFNLNNPTSASYAPITTTVRQKEEDMAAVVIQRAYRNHLHKRGIHHAAYIQRSKTGRKAASEDAPEKEGLLAKKMGALYGSDADLADEVEGLRRRPDPQTRCSGARCSPEPPEPNIILVPVEITNELLLHSAPSQQSSPTQTILRETNV