Target Information

General Information of This Target
Target ID
BTDT00125
Target Name
Voltage-dependent N-type calcium channel subunit alpha-1B
Target Bioclass
Transporter and channel
Uniprot ID
Q02294
3D Structure
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2D Sequence
3D Structure
Source
Predict by Alphafold2
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Alphafold Parameters: msa_mode: mmseqs2_uniref_env model_type: auto num_recycles: auto
Synonym
Brain calcium channel III; Calcium channel, L type, alpha-1 polypeptide isoform 5; Voltage-gated calcium channel subunit alpha Cav2.2
Sequence
MVRFGDELGGRYGGTGGGERARGGGAGGAGGPGQGGLPPGQRVLYKQSIAQRARTMALYN
PIPVKQNCFTVNRSLFVFSEDNVVRKYAKRITEWPPFEYMILATIIANCIVLALEQHLPD
GDKTPMSERLDDTEPYFIGIFCFEAGIKIIALGFVFHKGSYLRNGWNVMDFVVVLTEILA
TAGTDFDLRTLRAVRVLRPLKLVSGIPSLQVVLKSIMKAMVPLLQIGLLLFFAILMFAII
GLEFYMGKFHKACFPNSTDAEPVGDFPCGKEAPARLCDSDTECREYWPGPNFGITNFDNI
LFAILTVFQCITMEGWTDILYNTNDAAGNTWNWLYFIPLIIIGSFFMLNLVLGVLSGEFA
KERERVENRRAFLKLRRQQQIERELNGYLEWIFKAEEVMLAEEDKNAEEKSPLDAVLKRA
ATKKSRNDLIHAEEGEDRFVDLCAAGSPFARASLKSGKTESSSYFRRKEKMFRFLIRRMV
KAQSFYWVVLCVVALNTLCVAMVHYNQPQRLTTALYFAEFVFLGLFLTEMSLKMYGLGPR
SYFRSSFNCFDFGVIVGSIFEVVWAAIKPGTSFGISVLRALRLLRIFKVTKYWNSLRNLV
VSLLNSMKSIISLLFLLFLFIVVFALLGMQLFGGQFNFQDETPTTNFDTFPAAILTVFQI
LTGEDWNAVMYHGIESQGGVSKGMFSSFYFIVLTLFGNYTLLNVFLAIAVDNLANAQELT
KDEEEMEEAANQKLALQKAKEVAEVSPMSAANISIAARQQNSAKARSVWEQRASQLRLQN
LRASCEALYSEMDPEERLRYASTRHVRPDMKTHMDRPLVVEPGRDGLRGPAGNKSKPEGT
EATEGADPPRRHHRHRDRDKTSASTPAGGEQDRTDCPKAESTETGAREERARPRRSHSKE
APGADTQVRCERSRRHHRRGSPEEATEREPRRHRAHRHAQDSSKEGKEGTAPVLVPKGER
RARHRGPRTGPRETENSEEPTRRHRAKHKVPPTLEPPEREVAEKESNVVEGDKETRNHQP
KEPRCDLEAIAVTGVGSLHMLPSTCLQKVDEQPEDADNQRNVTRMGSQPSDPSTTVHVPV
TLTGPPGEATVVPSANTDLEGQAEGKKEAEADDVLRRGPRPIVPYSSMFCLSPTNLLRRF
CHYIVTMRYFEMVILVVIALSSIALAAEDPVRTDSFRNNALKYMDYIFTGVFTFEMVIKM
IDLGLLLHPGAYFRDLWNILDFIVVSGALVAFAFSSFMGGSKGKDINTIKSLRVLRVLRP
LKTIKRLPKLKAVFDCVVNSLKNVLNILIVYMLFMFIFAVIAVQLFKGKFFYCTDESKEL
ERDCRGQYLDYEKEEVEAQPRQWKKYDFHYDNVLWALLTLFTVSTGEGWPMVLKHSVDAT
YEEQGPSPGFRMELSIFYVVYFVVFPFFFVNIFVALIIITFQEQGDKVMSECSLEKNERA
CIDFAISAKPLTRYMPQNKQSFQYKTWTFVVSPPFEYFIMAMIALNTVVLMMKFYDAPYE
YELMLKCLNIVFTSMFSLECILKIIAFGVLNYFRDAWNVFDFVTVLGSITDILVTEIANN
FINLSFLRLFRAARLIKLCRQGYTIRILLWTFVQSFKALPYVCLLIAMLFFIYAIIGMQV
FGNIALDDGTSINRHNNFRTFLQALMLLFRSATGEAWHEIMLSCLGNRACDPHANASECG
SDFAYFYFVSFIFLCSFLMLNLFVAVIMDNFEYLTRDSSILGPHHLDEFIRVWAEYDPAA
CGRISYNDMFEMLKHMSPPLGLGKKCPARVAYKRLVRMNMPISNEDMTVHFTSTLMALIR
TALEIKLAPAGTKQHQCDAELRKEISSVWANLPQKTLDLLVPPHKPDEMTVGKVYAALMI
FDFYKQNKTTRDQTHQAPGGLSQMGPVSLFHPLKATLEQTQPAVLRGARVFLRQKSATSL
SNGGAIQTQESGIKESLSWGTQRTQDVLYEARAPLERGHSAEIPVGQPGALAVDVQMQNM
TLRGPDGEPQPGLESQGRAASMPRLAAETQPAPNASPMKRSISTLAPRPHGTQLCNTVLD
RPPPSQVSHHHHHRCHRRRDKKQRSLEKGPSLSVDTEGAPSTAAGSGLPHGEGSTGCRRE
RKQERGRSQERRQPSSSSSEKQRFYSCDRFGSREPPQPKPSLSSHPISPTAALEPGPHPQ
GSGSVNGSPLMSTSGASTPGRGGRRQLPQTPLTPRPSITYKTANSSPVHFAEGQSGLPAF
SPGRLSRGLSEHNALLQKEPLSQPLASGSRIGSDPYLGQRLDSEASAHNLPEDTLTFEEA
VATNSGRSSRTSYVSSLTSQSHPLRRVPNGYHCTLGLSTGVRARHSYHHPDQDHWC

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Family
the calcium channel alpha-7 subunit family
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.

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Taxonomy ID
10116
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Kingdom: Metazoa
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Muridae
Genus: Rattus
Species: Rattus norvegicus
Toxin Information Related to This Target
                           Toxin Name Activity Data Type Activity Data Reference
 Toxin Info    Omega-conotoxin RsXXVIA Effective concentration 50
2.8 μM
 [1]
 Toxin Info    Omega-theraphotoxin-Hs1a IC50
40 nM
 [2], [3]
 Toxin Info    Omega-conotoxin Bu8 IC50
89 nM
 [4], [5]
 Toxin Info    Alpha-conotoxin Vt1.27 IC50
398 nM
 [6]
 Toxin Info    Beta-theraphotoxin-Cd1a IC50
˜3 μM
 [7]
References
Ref 1 A Conus regularis conotoxin with a novel eight-cysteine framework inhibits CaV2.2 channels and displays an anti-nociceptive activity. Mar Drugs. 2013 Apr 8;11(4):1188-202. doi: 10.3390/md11041188.
Ref 2 Function and solution structure of Huwentoxin-X, a specific blocker of N-type calcium channels, from the Chinese bird spider Ornithoctonus huwena. J Biol Chem. 2006 Mar 31;281(13):8628-35. doi: 10.1074/jbc.M513542200. Epub 2006 Jan 26.
Ref 3 Molecular diversification based on analysis of expressed sequence tags from the venom glands of the Chinese bird spider Ornithoctonus huwena. Toxicon. 2008 Jun 15;51(8):1479-89. doi: 10.1016/j.toxicon.2008.03.024. Epub 2008 Mar 27.
Ref 4 Characterization of the Conus bullatus genome and its venom-duct transcriptome. BMC Genomics. 2011 Jan 25;12:60. doi: 10.1186/1471-2164-12-60.
Ref 5 A novel -conotoxin Bu8 inhibiting N-type voltage-gated calcium channels displays potent analgesic activity. Acta Pharm Sin B. 2021 Sep;11(9):2685-2693. doi: 10.1016/j.apsb.2021.03.001. Epub 2021 Mar 18.
Ref 6 A 4/8 Subtype -Conotoxin Vt1.27 Inhibits N-Type Calcium Channels With Potent Anti-Allodynic Effect. Front Pharmacol. 2022 Apr 29;13:881732. doi: 10.3389/fphar.2022.881732. eCollection 2022.
Ref 7 Discovery and mode of action of a novel analgesic -toxin from the African spider Ceratogyrus darlingi. PLoS One. 2017 Sep 7;12(9):e0182848. doi: 10.1371/journal.pone.0182848. eCollection 2017.
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