Protein: Voltage-dependent N-type calcium channel subunit alpha-1B (Brain calcium channel III) (BIII) (Calcium channel, L type, alpha-1 polypeptide isoform 5) (Voltage-gated calcium channel subunit alpha Cav2.2) (Q02294)
Organism: Rattus norvegicus (Rat)
Function: Voltage-sensitive calcium channels (VSCC) mediate the entry of calcium ions into excitable cells and are also involved in a variety of calcium-dependent processes, including muscle contraction, hormone or neurotransmitter release, gene expression, cell motility, cell division and cell death. This alpha-1B subunit gives rise to N-type calcium currents. N-type calcium channels belong to the 'high-voltage activated' (HVA) group. They are involved in pain signaling. Calcium channels containing alpha-1B subunit may play a role in directed migration of immature neurons. Mediates Ca(2+) release probability at hippocampal neuronal soma and synaptic terminals.
Subcellular location: Membrane {ECO:0000250|UniProtKB:Q00975}; Multi-pass membrane protein {ECO:0000255}.
Interaction partners:
- Voltage-dependent calcium channel subunit alpha-2/delta-1
- Voltage-dependent L-type calcium channel subunit beta-3
- Voltage-dependent R-type calcium channel subunit alpha-1E
- Syntaxin-1A
- Voltage-dependent calcium channel subunit alpha-2/delta-2
- Voltage-dependent L-type calcium channel subunit beta-2
- Voltage-dependent L-type calcium channel subunit beta-1
- Voltage-dependent P/Q-type calcium channel subunit alpha-1A
- Voltage-dependent calcium channel gamma-1 subunit
- Voltage-dependent L-type calcium channel subunit beta-4
Sequence:
MVRFGDELGGRYGGTGGGERARGGGAGGAGGPGQGGLPPGQRVLYKQSIAQRARTMALYNPIPVKQNCFTVNRSLFVFSEDNVVRKYAKRITEWPPFEYMILATIIANCIVLALEQHLPDGDKTPMSERLDDTEPYFIGIFCFEAGIKIIALGFVFHKGSYLRNGWNVMDFVVVLTEILATAGTDFDLRTLRAVRVLRPLKLVSGIPSLQVVLKSIMKAMVPLLQIGLLLFFAILMFAIIGLEFYMGKFHKACFPNSTDAEPVGDFPCGKEAPARLCDSDTECREYWPGPNFGITNFDNILFAILTVFQCITMEGWTDILYNTNDAAGNTWNWLYFIPLIIIGSFFMLNLVLGVLSGEFAKERERVENRRAFLKLRRQQQIERELNGYLEWIFKAEEVMLAEEDKNAEEKSPLDAVLKRAATKKSRNDLIHAEEGEDRFVDLCAAGSPFARASLKSGKTESSSYFRRKEKMFRFLIRRMVKAQSFYWVVLCVVALNTLCVAMVHYNQPQRLTTALYFAEFVFLGLFLTEMSLKMYGLGPRSYFRSSFNCFDFGVIVGSIFEVVWAAIKPGTSFGISVLRALRLLRIFKVTKYWNSLRNLVVSLLNSMKSIISLLFLLFLFIVVFALLGMQLFGGQFNFQDETPTTNFDTFPAAILTVFQILTGEDWNAVMYHGIESQGGVSKGMFSSFYFIVLTLFGNYTLLNVFLAIAVDNLANAQELTKDEEEMEEAANQKLALQKAKEVAEVSPMSAANISIAARQQNSAKARSVWEQRASQLRLQNLRASCEALYSEMDPEERLRYASTRHVRPDMKTHMDRPLVVEPGRDGLRGPAGNKSKPEGTEATEGADPPRRHHRHRDRDKTSASTPAGGEQDRTDCPKAESTETGAREERARPRRSHSKEAPGADTQVRCERSRRHHRRGSPEEATEREPRRHRAHRHAQDSSKEGKEGTAPVLVPKGERRARHRGPRTGPRETENSEEPTRRHRAKHKVPPTLEPPEREVAEKESNVVEGDKETRNHQPKEPRCDLEAIAVTGVGSLHMLPSTCLQKVDEQPEDADNQRNVTRMGSQPSDPSTTVHVPVTLTGPPGEATVVPSANTDLEGQAEGKKEAEADDVLRRGPRPIVPYSSMFCLSPTNLLRRFCHYIVTMRYFEMVILVVIALSSIALAAEDPVRTDSFRNNALKYMDYIFTGVFTFEMVIKMIDLGLLLHPGAYFRDLWNILDFIVVSGALVAFAFSSFMGGSKGKDINTIKSLRVLRVLRPLKTIKRLPKLKAVFDCVVNSLKNVLNILIVYMLFMFIFAVIAVQLFKGKFFYCTDESKELERDCRGQYLDYEKEEVEAQPRQWKKYDFHYDNVLWALLTLFTVSTGEGWPMVLKHSVDATYEEQGPSPGFRMELSIFYVVYFVVFPFFFVNIFVALIIITFQEQGDKVMSECSLEKNERACIDFAISAKPLTRYMPQNKQSFQYKTWTFVVSPPFEYFIMAMIALNTVVLMMKFYDAPYEYELMLKCLNIVFTSMFSLECILKIIAFGVLNYFRDAWNVFDFVTVLGSITDILVTEIANNFINLSFLRLFRAARLIKLCRQGYTIRILLWTFVQSFKALPYVCLLIAMLFFIYAIIGMQVFGNIALDDGTSINRHNNFRTFLQALMLLFRSATGEAWHEIMLSCLGNRACDPHANASECGSDFAYFYFVSFIFLCSFLMLNLFVAVIMDNFEYLTRDSSILGPHHLDEFIRVWAEYDPAACGRISYNDMFEMLKHMSPPLGLGKKCPARVAYKRLVRMNMPISNEDMTVHFTSTLMALIRTALEIKLAPAGTKQHQCDAELRKEISSVWANLPQKTLDLLVPPHKPDEMTVGKVYAALMIFDFYKQNKTTRDQTHQAPGGLSQMGPVSLFHPLKATLEQTQPAVLRGARVFLRQKSATSLSNGGAIQTQESGIKESLSWGTQRTQDVLYEARAPLERGHSAEIPVGQPGALAVDVQMQNMTLRGPDGEPQPGLESQGRAASMPRLAAETQPAPNASPMKRSISTLAPRPHGTQLCNTVLDRPPPSQVSHHHHHRCHRRRDKKQRSLEKGPSLSVDTEGAPSTAAGSGLPHGEGSTGCRRERKQERGRSQERRQPSSSSSEKQRFYSCDRFGSREPPQPKPSLSSHPISPTAALEPGPHPQGSGSVNGSPLMSTSGASTPGRGGRRQLPQTPLTPRPSITYKTANSSPVHFAEGQSGLPAFSPGRLSRGLSEHNALLQKEPLSQPLASGSRIGSDPYLGQRLDSEASAHNLPEDTLTFEEAVATNSGRSSRTSYVSSLTSQSHPLRRVPNGYHCTLGLSTGVRARHSYHHPDQDHWC