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- Table of Contents
Facts about Sodium channel subunit beta-3.
Inactivates the sodium channel opening more slowly than the subunit beta-1. Its association with NFASC may target the sodium channels to the nodes of Ranvier of developing axons and keep these channels at the nodes in mature myelinated axons (By similarity).
| Human | |
|---|---|
| Gene Name: | SCN3B |
| Uniprot: | Q9NY72 |
| Entrez: | 55800 |

| Belongs to: |
|---|
| sodium channel auxiliary subunit SCN3B (TC 8.A.17) family |

HSA243396; KIAA1158; SCNB3; sodium channel subunit beta-3; sodium channel, voltage-gated, type III, beta; voltage-gated sodium channel beta-3 subunit
Mass (kDA):
24.702 kDA

| Human | |
|---|---|
| Location: | 11q24.1 |
| Sequence: | 11; NC_000011.10 (123629187..123654607, complement) |
Expressed in the atrium.
Membrane; Single-pass type I membrane protein.





PMID: 10688874 by Morgan K., et al. Beta3: an additional auxiliary subunit of the voltage-sensitive sodium channel that modulates channel gating with distinct kinetics.
PMID: 20031595 by Hu D., et al. A mutation in the beta-3 subunit of the cardiac sodium channel associated with Brugada ECG phenotype.