Trait
Trifascicular block
Abnormal conduction in all three divisions of the intraventricular conducting tissue.
Summary
- Body system
- Abnormality of the cardiovascular system
Reference genomeGRCh38hg38
Positions on gene and variant pages follow this choice, in this browser.
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Get my Genome Test22 genes linked to Trifascicular block
Changes in these genes cause rare conditions in which Trifascicular block is seen. Most people with this trait have none of those conditions, and a gene on this list says nothing about anyone's own genome.
| Gene | How often it is seen | Conditions |
|---|---|---|
| ABCC9ATP binding cassette subfamily C member 9 | Rarely (1–4%) | In 1 condition |
| AKAP9A-kinase anchoring protein 9 | Rarely (1–4%) | In 1 condition |
| CACNA1Ccalcium voltage-gated channel subunit alpha1 C | Rarely (1–4%) | In 1 condition |
| CACNA2D1calcium voltage-gated channel auxiliary subunit alpha2delta 1 | Rarely (1–4%) | In 1 condition |
| CACNB2calcium voltage-gated channel auxiliary subunit beta 2 | Rarely (1–4%) | In 1 condition |
| GPD1Lglycerol-3-phosphate dehydrogenase 1 like | Rarely (1–4%) | In 1 condition |
| HCN4hyperpolarization activated cyclic nucleotide gated potassium channel 4 | Rarely (1–4%) | In 1 condition |
| KCND3potassium voltage-gated channel subfamily D member 3 | Rarely (1–4%) | In 1 condition |
| KCNE3potassium voltage-gated channel subfamily E regulatory subunit 3 | Rarely (1–4%) | In 1 condition |
| KCNE5potassium voltage-gated channel subfamily E regulatory subunit 5 | Rarely (1–4%) | In 1 condition |
| KCNJ8potassium inwardly rectifying channel subfamily J member 8 | Rarely (1–4%) | In 1 condition |
| PKP2plakophilin 2 | Rarely (1–4%) | In 1 condition |
| RANGRFRAN guanine nucleotide release factor | Rarely (1–4%) | In 1 condition |
| SCN10Asodium voltage-gated channel alpha subunit 10 | Rarely (1–4%) | In 1 condition |
| SCN1Bsodium voltage-gated channel beta subunit 1 | Rarely (1–4%) | In 1 condition |
| SCN2Bsodium voltage-gated channel beta subunit 2 | Rarely (1–4%) | In 1 condition |
| SCN3Bsodium voltage-gated channel beta subunit 3 | Rarely (1–4%) | In 1 condition |
| SCN5Asodium voltage-gated channel alpha subunit 5 | Rarely (1–4%) | In 1 condition |
| SCNN1Asodium channel epithelial 1 subunit alpha | Rarely (1–4%) | In 1 condition |
| SEMA3Asemaphorin 3A | Rarely (1–4%) | In 1 condition |
| SLMAPsarcolemma associated protein | Rarely (1–4%) | In 1 condition |
| TRPM4transient receptor potential cation channel subfamily M member 4 | Rarely (1–4%) | In 1 condition |
How often is among people with one of the gene's conditions, the most often across them, as the Human Phenotype Ontology records it. These pages describe traits and the research behind them; they are not a diagnosis, and a doctor or genetic counsellor is the person to ask about symptoms.
Broader traits
Where this comes from
- The Human Phenotype Ontology, release 2026-09-01: the trait, its names, its definition and the genes linked to it. Find out more at hpo.jax.org.
- Data release 2026.10.16-c6eea6bf.
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