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Sick sinus syndrome v1.5 Bryony Thompson Panel status changed from public to retired
Sick sinus syndrome v1.4 POPDC2 Zornitza Stark Marked gene: POPDC2 as ready
Sick sinus syndrome v1.4 POPDC2 Zornitza Stark Gene: popdc2 has been classified as Green List (High Evidence).
Sick sinus syndrome v1.4 POPDC2 Zornitza Stark Phenotypes for gene: POPDC2 were changed from Sinus node dysfunction to Sinoatrial node disorder, MONDO:0000469, POPDC2-related
Sick sinus syndrome v1.3 POPDC2 Chirag Patel Classified gene: POPDC2 as Green List (high evidence)
Sick sinus syndrome v1.3 POPDC2 Chirag Patel Gene: popdc2 has been classified as Green List (High Evidence).
Sick sinus syndrome v1.2 POPDC2 Chirag Patel gene: POPDC2 was added
gene: POPDC2 was added to Sick sinus syndrome. Sources: Other
Mode of inheritance for gene: POPDC2 was set to BIALLELIC, autosomal or pseudoautosomal
Phenotypes for gene: POPDC2 were set to Sinus node dysfunction
Review for gene: POPDC2 was set to GREEN
gene: POPDC2 was marked as current diagnostic
Added comment: ESHG 2023:
3 families with 7 affected with sinus node dysfunction (bradycardia) and AV block (2/7 HCM).

3 x HMZ variants found in POPDC2 (2 x missense, 1 x indel). Variants predicted to diminish cAMP binding of POPDC2, and shown to disrupt regulation of TREK1 channels (lowering of outward K+ current).

POPDC2 is highly expressed in cardiac myocytes, sinoatrial node, and atrioventricular node.
Knockdown in zebrafish leads to AV block, and knockout in mice leads to sinus node dysfunction.
Sources: Other
Sick sinus syndrome v1.1 Zornitza Stark HPO terms changed from to Sick sinus syndrome, HP:0011704
List of related panels changed from to Sick sinus syndrome; HP:0011704
Sick sinus syndrome v1.0 Zornitza Stark promoted panel to version 1.0
Sick sinus syndrome v0.7 HCN4 Zornitza Stark Marked gene: HCN4 as ready
Sick sinus syndrome v0.7 HCN4 Zornitza Stark Gene: hcn4 has been classified as Green List (High Evidence).
Sick sinus syndrome v0.7 HCN4 Zornitza Stark Phenotypes for gene: HCN4 were changed from to Sick sinus syndrome 2, MIM# 163800
Sick sinus syndrome v0.6 HCN4 Zornitza Stark Publications for gene: HCN4 were set to
Sick sinus syndrome v0.5 HCN4 Zornitza Stark reviewed gene: HCN4: Rating: GREEN; Mode of pathogenicity: None; Publications: 12750403, 15123648, 16407510, 17646576, 25145518; Phenotypes: Sick sinus syndrome 2, MIM# 163800; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Sick sinus syndrome v0.5 SCN5A Zornitza Stark Marked gene: SCN5A as ready
Sick sinus syndrome v0.5 SCN5A Zornitza Stark Gene: scn5a has been classified as Green List (High Evidence).
Sick sinus syndrome v0.5 SCN5A Zornitza Stark Phenotypes for gene: SCN5A were changed from to Sick sinus syndrome 1, MIM# 608567
Sick sinus syndrome v0.4 SCN5A Zornitza Stark Publications for gene: SCN5A were set to
Sick sinus syndrome v0.3 SCN5A Zornitza Stark reviewed gene: SCN5A: Rating: GREEN; Mode of pathogenicity: None; Publications: 14523039; Phenotypes: Sick sinus syndrome 1, MIM# 608567; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Sick sinus syndrome v0.3 Zornitza Stark Panel types changed to Victorian Clinical Genetics Services; Rare Disease
Sick sinus syndrome v0.2 GNB2 Zornitza Stark Marked gene: GNB2 as ready
Sick sinus syndrome v0.2 GNB2 Zornitza Stark Gene: gnb2 has been classified as Red List (Low Evidence).
Sick sinus syndrome v0.2 GNB2 Zornitza Stark gene: GNB2 was added
gene: GNB2 was added to Sick sinus syndrome. Sources: Expert list
Mode of inheritance for gene: GNB2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: GNB2 were set to 28219978
Phenotypes for gene: GNB2 were set to Sick sinus syndrome 4, MIM# 619464
Review for gene: GNB2 was set to RED
Added comment: Single large 3-generational family reported with a missense variant in this gene segregating with early and progressive sinus node and atrioventricular conduction dysfunction.

Note recent reports of multiple individuals with syndromic ID and mono-allelic variants in this gene.
Sources: Expert list
Sick sinus syndrome v0.1 Zornitza Stark Panel name changed from Sick sinus syndrome_VCGS to Sick sinus syndrome
Panel types changed to Victorian Clinical Genetics Services
Sick sinus syndrome v0.0 SCN5A Zornitza Stark gene: SCN5A was added
gene: SCN5A was added to Sick sinus syndrome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: SCN5A was set to BIALLELIC, autosomal or pseudoautosomal
Sick sinus syndrome v0.0 HCN4 Zornitza Stark gene: HCN4 was added
gene: HCN4 was added to Sick sinus syndrome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: HCN4 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Sick sinus syndrome v0.0 Zornitza Stark Added panel Sick sinus syndrome_VCGS