Protein Details: Voltage-gated sodium channel subunit alpha Nav1.9

Protein ID

ICDB_Pro_0277

Protein Name

Voltage-gated sodium channel subunit alpha Nav1.9

Gene Name

Scn11a; Nan; Sns2

Organism

Rattus norvegicus (Rat)

Length

1765 amino acids

AlphaFoldDB

AF-O88457-F1-model_v4.pdb

Function

Sodium channel mediating the voltage-dependent sodium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane; the protein forms a sodium-selective channel through which sodium ions may pass in accordance with their electrochemical gradient . Involved in membrane depolarization during action potential in nociceptors which function as key relay stations for the electrical transmission of pain signals from the periphery to the central nervous system. Also involved in rapid BDNF-evoked neuronal depolarization (By similarity).

Sequence

MEERYYPVIFPDERNFRPFTSDSLAAIEKRIAIQKERKKSKDKAAAEPQPRPQLDLKASRKLPKLYGDIPPELVAKPLEDLDPFYKDHKTFMVLNKKRTIYRFSAKRALFILGPFNPLRSLMIRISVHSVFSMFIICTVIINCMFMANSMERSFDNDIPEYVFIGIYILEAVIKILARGFIVDEFSFLRDPWNWLDFIVIGTAIATCFPGSQVNLSALRTFRVFRALKAISVISGLKVIVGALLRSVKKLVDVMVLTLFCLSIFALVGQQLFMGILNQKCIKHNCGPNPASNKDCFEKEKDSEDFIMCGTWLGSRPCPNGSTCDKTTLNPDNNYTKFDNFGWSFLAMFRVMTQDSWERLYRQILRTSGIYFVFFFVVVIFLGSFYLLNLTLAVVTMAYEEQNRNVAAETEAKEKMFQEAQQLLREEKEALVAMGIDRSSLNSLQASSFSPKKRKFFGSKTRKSFFMRGSKTAQASASDSEDDASKNPQLLEQTKRLSQNLPVDLFDEHVDPLHRQRALSAVSILTITMQEQEKFQEPCFPCGKNLASKYLVWDCSPQWLCIKKVLRTIMTDPFTELAITICIIINTVFLAVEHHNMDDNLKTILKIGNWVFTGIFIAEMCLKIIALDPYHYFRHGWNVFDSIVALLSLADVLYNTLSDNNRSFLASLRVLRVFKLAKSWPTLNTLIKIIGHSVGALGNLTVVLTIVVFIFSVVGMRLFGTKFNKTAYATQERPRRRWHMDNFYHSFLVVFRILCGEWIENMWGCMQDMDGSPLCIIVFVLIMVIGKLVVLNLFIALLLNSFSNEEKDGSLEGETRKTKVQLALDRFRRAFSFMLHALQSFCCKKCRRKNSPKPKETTESFAGENKDSILPDARPWKEYDTDMALYTGQAGAPLAPLAEVEDDVEYCGEGGALPTSQHSAGVQAGDLPPETKQLTSPDDQGVEMEVFSEEDLHLSIQSPRKKSDAVSMLSECSTIDLNDIFRNLQKTVSPKKQPDRCFPKGLSCHFLCHKTDKRKSPWVLWWNIRKTCYQIVKHSWFESFIIFVILLSSGALIFEDVNLPSRPQVEKLLRCTDNIFTFIFLLEMILKWVAFGFRRYFTSAWCWLDFLIVVVSVLSLMNLPSLKSFRTLRALRPLRALSQFEGMKVVVYALISAIPAILNVLLVCLIFWLVFCILGVNLFSGKFGRCINGTDINMYLDFTEVPNRSQCNISNYSWKVPQVNFDNVGNAYLALLQVATYKGWLEIMNAAVDSREKDEQPDFEANLYAYLYFVVFIIFGSFFTLNLFIGVIIDNFNQQQKKLGGQDIFMTEEQKKYYNAMKKLGTKKPQKPIPRPLNKCQAFVFDLVTSQVFDVIILGLIVLNMIIMMAESADQPKDVKKTFDILNIAFVVIFTIECLIKVFALRQHYFTNGWNLFDCVVVVLSIISTLVSRLEDSDISFPPTLFRVVRLARIGRILRLVRAARGIRTLLFALMMSLPSLFNIGLLLFLVMFIYAIFGMSWFSKVKKGSGIDDIFNFETFTGSMLCLFQITTSAGWDTLLNPMLEAKEHCNSSSQDSCQQPQIAVVYFVSYIIISFLIVVNMYIAVILENFNTATEESEDPLGEDDFEIFYEVWEKFDPEASQFIQYSALSDFADALPEPLRVAKPNKFQFLVMDLPMVMGDRLHCMDVLFAFTTRVLGDSSGLDTMKTMMEEKFMEANPFKKLYEPIVTTTKRKEEEQGAAVIQRAYRKHMEKMVKLRLKDRSSSSHQVFCNGDLSSLDVAKVKVHND

PDB Structures

Ligand Binding

1. DICL_CP

2. DICL_Pep

Binding Site

Disease

Location

Expressed (at protein level) in myenteric sensory neurons. Expressed in small sensory neurons of the dorsal root ganglia (C-fiber neurons) and trigeminal ganglia.

DOI ID

10.1073/pnas.95.15.8963

RefSeq

NP_062138.1

Feature