Gene Gene information from NCBI Gene database.
Entrez ID 774
Gene name Calcium voltage-gated channel subunit alpha1 B
Gene symbol CACNA1B
Synonyms (NCBI Gene)
BIIICACNL1A5CACNNCav2.2DYT23NEDNEH
Chromosome 9
Chromosome location 9q34.3
Summary The protein encoded by this gene is the pore-forming subunit of an N-type voltage-dependent calcium channel, which controls neurotransmitter release from neurons. The encoded protein forms a complex with alpha-2, beta, and delta subunits to form the high-
SNPs SNP information provided by dbSNP.
4
SNP ID Visualize variation Clinical significance Consequence
rs1554738159 C>T Pathogenic Coding sequence variant, stop gained
rs1589093778 TG>- Pathogenic Coding sequence variant, frameshift variant
rs1589095160 T>- Pathogenic Coding sequence variant, frameshift variant
rs1589112601 G>C Pathogenic Splice donor variant
miRNA miRNA information provided by mirtarbase database.
408
miRTarBase ID miRNA Experiments Reference
MIRT018028 hsa-miR-335-5p Microarray 18185580
MIRT611750 hsa-miR-8485 HITS-CLIP 23824327
MIRT611749 hsa-miR-499a-3p HITS-CLIP 23824327
MIRT611748 hsa-miR-499b-3p HITS-CLIP 23824327
MIRT637821 hsa-miR-642a-3p HITS-CLIP 23824327
Gene ontology (GO) Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
33
GO ID Ontology Definition Evidence Reference
GO:0000166 Function Nucleotide binding IEA
GO:0001540 Function Amyloid-beta binding IC 23376566
GO:0005216 Function Monoatomic ion channel activity IEA
GO:0005245 Function Voltage-gated calcium channel activity IDA 1321501
GO:0005245 Function Voltage-gated calcium channel activity IEA
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
601012 1389 ENSG00000148408
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
Q00975
Protein name 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)
Protein 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 expressio
PDB 2LCM , 7MIX , 7MIY , 7VFS , 7VFU , 7VFV , 7VFW
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF00520 Ion_trans 94 367 Ion transport protein Family
PF00520 Ion_trans 481 720 Ion transport protein Family
PF00520 Ion_trans 1149 1427 Ion transport protein Family
PF00520 Ion_trans 1470 1719 Ion transport protein Family
PF16905 GPHH 1728 1781 Voltage-dependent L-type calcium channel, IQ-associated Family
PF08763 Ca_chan_IQ 1792 1869 Voltage gated calcium channel IQ domain Domain
Tissue specificity TISSUE SPECIFICITY: Isoform Alpha-1b-1 and isoform Alpha-1b-2 are expressed in the central nervous system, but not in skeletal muscle or aorta. Expressed in the cerebral white matter, cortex, hippocampus, basal ganglia, and cerebellum (PubMed:30982612). {
Sequence
MVRFGDELGGRYGGPGGGERARGGGAGGAGGPGPGGLQPGQRVLYKQSIAQRARTMALYN
PIPVKQNCFTVNRSLFVFSEDNVVRKYAKRITEWPPFEYMILATIIANCIVLALEQHLPD
GDKTPMSERLDDTEPYFIGIFCFEAGIKIIALGFVFHKGSYLRNGWNVMDFVVVLTGILA
TAGTDFDLRTLRAVRVLRPLKLVSGIPSLQVVLKSIMKAMVPLLQIGLLLFFAILMFAII
GLEFYMGKFHKACFPNSTDAEPVGDFPCGKEAPARLCEGDTECREYWPGPNFGITNFDNI
LFAILTVFQCITMEGWTDILYNTNDAAGNTWNWLYFIPLIIIGSFFMLNLVLGVLSGEFA
KERERVE
NRRAFLKLRRQQQIERELNGYLEWIFKAEEVMLAEEDRNAEEKSPLDVLKRAA
TKKSRNDLIHAEEGEDRFADLCAVGSPFARASLKSGKTESSSYFRRKEKMFRFFIRRMVK
AQSFYWVVLCVVALNTLCVAMVHYNQPRRLTTTLYFAEFVFLGLFLTEMSLKMYGLGPRS
YFRSSFNCFDFGVIVGSVFEVVWAAIKPGSSFGISVLRALRLLRIFKVTKYWSSLRNLVV
SLLNSMKSIISLLFLLFLFIVVFALLGMQLFGGQFNFQDETPTTNFDTFPAAILTVFQIL
TGEDWNAVMYHGIESQGGVSKGMFSSFYFIVLTLFGNYTLLNVFLAIAVDNLANAQELTK

DEEEMEEAANQKLALQKAKEVAEVSPMSAANISIAARQQNSAKARSVWEQRASQLRLQNL
RASCEALYSEMDPEERLRFATTRHLRPDMKTHLDRPLVVELGRDGARGPVGGKARPEAAE
APEGVDPPRRHHRHRDKDKTPAAGDQDRAEAPKAESGEPGAREERPRPHRSHSKEAAGPP
EARSERGRGPGPEGGRRHHRRGSPEEAAEREPRRHRAHRHQDPSKECAGAKGERRARHRG
GPRAGPREAESGEEPARRHRARHKAQPAHEAVEKETTEKEATEKEAEIVEADKEKELRNH
QPREPHCDLETSGTVTVGPMHTLPSTCLQKVEEQPEDADNQRNVTRMGSQPPDPNTIVHI
PVMLTGPLGEATVVPSGNVDLESQAEGKKEVEADDVMRSGPRPIVPYSSMFCLSPTNLLR
RFCHYIVTMRYFEVVILVVIALSSIALAAEDPVRTDSPRNNALKYLDYIFTGVFTFEMVI
KMIDLGLLLHPGAYFRDLWNILDFIVVSGALVAFAFSGSKGKDINTIKSLRVLRVLRPLK
TIKRLPKLKAVFDCVVNSLKNVLNILIVYMLFMFIFAVIAVQLFKGKFFYCTDESKELER
DCRGQYLDYEKEEVEAQPRQWKKYDFHYDNVLWALLTLFTVSTGEGWPMVLKHSVDATYE
EQGPSPGYRMELSIFYVVYFVVFPFFFVNIFVALIIITFQEQGDKVM
SECSLEKNERACI
DFAISAKPLTRYMPQNRQSFQYKTWTFVVSPPFEYFIMAMIALNTVVLMMKFYDAPYEYE
LMLKCLNIVFTSMFSMECVLKIIAFGVLNYFRDAWNVFDFVTVLGSITDILVTEIAETNN
FINLSFLRLFRAARLIKLLRQGYTIRILLWTFVQSFKALPYVCLLIAMLFFIYAIIGMQV
FGNIALDDDTSINRHNNFRTFLQALMLLFRSATGEAWHEIMLSCLSNQACDEQANATECG
SDFAYFYFVSFIFLCSFLMLNLFVAVIMDNFEYLTRDSS
ILGPHHLDEFIRVWAEYDPAA
CGRISYNDMFEMLKHMSPPLGLGKKCPARVAYKRLVRMNMP
ISNEDMTVHFTSTLMALIR
TALEIKLAPAGTKQHQCDAELRKEISVVWANLPQKTLDLLVPPHKPDEMTVGKVYAALMI
FDFYKQNKT
TRDQMQQAPGGLSQMGPVSLFHPLKATLEQTQPAVLRGARVFLRQKSSTSL
SNGGAIQNQESGIKESVSWGTQRTQDAPHEARPPLERGHSTEIPVGRSGALAVDVQMQSI
TRRGPDGEPQPGLESQGRAASMPRLAAETQPVTDASPMKRSISTLAQRPRGTHLCSTTPD
RPPPSQASSHHHHHRCHRRRDRKQRSLEKGPSLSADMDGAPSSAVGPGLPPGEGPTGCRR
ERERRQERGRSQERRQPSSSSSEKQRFYSCDRFGGREPPKPKPSLSSHPTSPTAGQEPGP
HPQGSGSVNGSPLLSTSGASTPGRGGRRQLPQTPLTPRPSITYKTANSSPIHFAGAQTSL
PAFSPGRLSRGLSEHNALLQRDPLSQPLAPGSRIGSDPYLGQRLDSEASVHALPEDTLTF
EEAVATNSGRSSRTSYVSSLTSQSHPLRRVPNGYHCTLGLSSGGRARHSYHHPDQDHWC
Sequence length 2339
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  KEGG  Reactome
  MAPK signaling pathway
Calcium signaling pathway
Synaptic vesicle cycle
Retrograde endocannabinoid signaling
Cholinergic synapse
Serotonergic synapse
GABAergic synapse
Dopaminergic synapse
Type II diabetes mellitus
Huntington disease
Prion disease
Pathways of neurodegeneration - multiple diseases
Morphine addiction
Nicotine addiction
Chemical carcinogenesis - receptor activation
  Presynaptic depolarization and calcium channel opening
Associated diseases Disease associations from ClinVar (causal & non-causal) and other databases (OMIM, Orphanet, GWAS, etc.).
23
Evidence Score: ★☆☆☆☆  Gene-disease association found in Text Mining only ★★☆☆☆  Found in Text Mining and Unknown/Other Associations ★★★☆☆  Reported in Unknown/Other Associations across ≥2 Sources ★★★★☆  ClinVar: Pathogenic/Likely Pathogenic (<5 Variants) ★★★★★  ClinVar: Pathogenic/Likely Pathogenic (≥5 Variants)
Causal Diseases associated with Pathogenic or Likely Pathogenic variants in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession Evidence Score
CACNA1B-related disorder Likely pathogenic rs2539447975 RCV003919306
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Neurodevelopmental disorder with seizures and nonepileptic hyperkinetic movements Likely pathogenic; Pathogenic rs778439899, rs1589095160, rs1589093778, rs1589112601, rs1554738159 RCV003448465
RCV000787344
RCV000787345
RCV000787346
RCV000787347
★★★★★
ClinVar: Pathogenic / Likely Pathogenic (≥5 Variants)
Unknown / Other Associations ClinVar entries with uncertain/conflicting evidence, and associations from other databases (OMIM, Orphanet, GWAS, etc.) where the gene is not established as causal.
Phenotype Name Clinical Significance Source Evidence Score
BIPOLAR DISORDER Disgenet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
CACNA1B-related neurodevelopmental disorder Uncertain significance ClinVar
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Complex neurodevelopmental disorder with motor features Uncertain significance; Conflicting classifications of pathogenicity ClinVar
ClinGen, Disgenet
★★★☆☆
Reported in Unknown/Other Associations (≥2 sources)
Dystonia 23 Uncertain significance; Conflicting classifications of pathogenicity; Likely benign ClinVar
Disgenet
★★★☆☆
Reported in Unknown/Other Associations (≥2 sources)
Associations from Text Mining Disease associations identified through text mining
Disease Name Disease (Merged) Source PMID Relationship Type Evidence Score
Arrhythmias Cardiac Cardiac arrhythmias Pubtator 25296916, 26157024 Associate
★☆☆☆☆
Found in Text Mining only
Astrocytoma Astrocytoma Pubtator 11300931 Associate
★☆☆☆☆
Found in Text Mining only
Attention deficit hyperactivity disorder Attention Deficit Hyperactivity Disorder HPO_DG
★☆☆☆☆
Found in Text Mining only
Autism Spectrum Disorder Autism Pubtator 35773312 Associate
★☆☆☆☆
Found in Text Mining only
Autism Spectrum Disorders Autism Spectrum Disorder BEFREE 20615089
★☆☆☆☆
Found in Text Mining only
Autistic Disorder Autism HPO_DG
★☆☆☆☆
Found in Text Mining only
Bipolar Disorder Bipolar disorder Pubtator 19065143, 21057379, 25730879, 39999946, 40562893 Associate
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Bipolar Disorder Bipolar Disorder PSYGENET_DG 21057379
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Blepharoptosis Ptosis HPO_DG
★☆☆☆☆
Found in Text Mining only
Blepharospasm Blepharospasm Pubtator 33051750 Associate
★☆☆☆☆
Found in Text Mining only