SCN3B
sodium voltage-gated channel beta subunit 3 | HSA243396, SCNB3

Voltage-gated sodium channels are transmembrane glycoprotein complexes composed of a large alpha subunit and one or more regulatory beta subunits. They are responsible for the generation and propagation of action potentials in neurons and muscle. This gene encodes one member of the sodium channel beta subunit gene family, and influences the inactivation kinetics of the sodium channel. Two alternatively spliced variants, encoding the same protein, have been identified. [provided by RefSeq, Jul 2008]

Biological processes 46 terms
SA node cell action potential (GO:0086015)SA node cell action potential (GO:0086015)Z disc (GO:0030018)Z disc (GO:0030018)atrial cardiac muscle cell action potential (GO:0086014)cardiac muscle cell action potential involved in contraction (GO:0086002)cardiac muscle contraction (GO:0060048)membrane (GO:0016020)membrane depolarization (GO:0051899)membrane depolarization during action potential (GO:0086010)membrane depolarization during action potential (GO:0086010)membrane depolarization during cardiac muscle cell action potential (GO:0086012)membrane depolarization during cardiac muscle cell action potential (GO:0086012)nervous system development (GO:0007399)plasma membrane (GO:0005886)plasma membrane (GO:0005886)positive regulation of heart rate (GO:0010460)positive regulation of heart rate (GO:0010460)positive regulation of sodium ion transport (GO:0010765)positive regulation of sodium ion transport (GO:0010765)protein binding (GO:0005515)protein localization to plasma membrane (GO:0072659)regulation of atrial cardiac muscle cell membrane depolarization (GO:0060371)regulation of atrial cardiac muscle cell membrane depolarization (GO:0060371)regulation of heart rate by cardiac conduction (GO:0086091)regulation of heart rate by cardiac conduction (GO:0086091)regulation of membrane potential (GO:0042391)regulation of ventricular cardiac muscle cell membrane depolarization (GO:0060373)sodium channel inhibitor activity (GO:0019871)sodium channel regulator activity (GO:0017080)sodium channel regulator activity (GO:0017080)sodium channel regulator activity (GO:0017080)sodium ion transmembrane transport (GO:0035725)sodium ion transmembrane transport (GO:0035725)sodium ion transport (GO:0006814)sodium ion transport (GO:0006814)transmembrane transporter binding (GO:0044325)transmembrane transporter binding (GO:0044325)transmembrane transporter binding (GO:0044325)ventricular cardiac muscle cell action potential (GO:0086005)ventricular cardiac muscle cell action potential (GO:0086005)voltage-gated sodium channel activity involved in cardiac muscle cell action potential (GO:0086006)voltage-gated sodium channel complex (GO:0001518)voltage-gated sodium channel complex (GO:0001518)voltage-gated sodium channel complex (GO:0001518)voltage-gated sodium channel complex (GO:0001518)
Expression (TPM)
SCN3B — as a Regulated Gene

TFs regulating SCN3B 0 TFs

Transcription factors with Perturb-seq knockdown data for SCN3B. The Binding column indicates whether any binding evidence exists for this TF–gene pair (ChIP-seq or motif footprint peaks). The Mean coef is the average Perturb-seq regression coefficient across active gRNAs (positive = SCN3B upregulated upon KD; negative = downregulated). The Outlier column indicates whether this gene is in the top or bottom 5% of all TF knockdown effects.

Data: Effect:
TF Mean coef Binding Outlier TF→Gene link

Elements linked to SCN3B

Open chromatin peaks (ATAC-seq) in the genomic neighbourhood of SCN3B, linked by TSS proximity or chromatin conformation (Multiome / HiCAR). Each element overlaps at least one TF ChIP-seq binding site — the TFs column shows how many distinct TFs bind that element.

Accessibility Element Dist. to TSS Link type TFs
chr11:123,640,646–123,641,369 at TSS At TSS 228
chr11:123,653,549–123,655,224 at TSS At TSS 617

Genome Browser

Genomic view of the SCN3B locus showing ATAC-seq accessibility and RNA-seq expression across the ESC → DE time course, together with TF binding peaks and element-to-TSS loop connections.

chr11:123,630,646 – 123,665,224
Proximal 1 kb Distal 10 kb Multiome HiCAR ATAC-seq RNA-seq