Newborns additional phenotypes panel 1

Gene: ABCC8

Green List (high evidence)

ABCC8 (ATP binding cassette subfamily C member 8)
EnsemblGeneIds (GRCh38): ENSG00000006071
EnsemblGeneIds (GRCh37): ENSG00000006071
OMIM: 600509, Gene2Phenotype
ABCC8 is in 11 panels

2 reviews

Arina Puzriakova (Genomics England Curator)

Special Consideration: Multiple phenotypes with same MOI included.

Additional Information: ABCC8 related hyperinsulinism (LOF) and ABCC8 related neonatal diabetes (GOF) both included.
Created: 25 Sep 2024, 11:26 a.m. | Last Modified: 18 Nov 2025, 3:52 p.m.
Panel Version: 0.102
Special Consideration: Awareness.

Additional Information: AD MOI was excluded due to large numbers of heterozygous variants being prioritised requiring manual review.
Created: 25 Sep 2024, 11:23 a.m. | Last Modified: 25 Sep 2024, 11:26 a.m.
Panel Version: 0.100

Mafalda Gomes (Genomics England Curator)

The mechanism of pathogenicity is gain-of-function (GOF).
Created: 1 Jun 2023, 2:40 p.m. | Last Modified: 1 Jun 2023, 2:40 p.m.
Panel Version: 0.29
ABCC8 curation results (clinicalgenome.org)
Created: 1 Jun 2023, 12:22 p.m. | Last Modified: 1 Jun 2023, 12:22 p.m.
Panel Version: 0.26
The mechanism for dominant cases is activating variants resulting in a KATP channel unable to close in response to ATP, impairing insulin secretion. The occasional recessive cases are caused by either (1) homozygosity or compound heterozygosity for partially activating variants or (2) a partially activating variant that only causes diabetes when inherited in trans with an inactivating variant. So, seems like LOF is rare and only causes disease when a GOF variant is in trans. But just to confirm, do we not want LOF prioritisation for AR? -> DB: I have taken your comment and added to spreadsheet to discuss with specialists
Created: 17 May 2023, 1:43 p.m. | Last Modified: 17 May 2023, 1:43 p.m.
Panel Version: 0.11

Details

Mode of Inheritance
BIALLELIC, autosomal or pseudoautosomal
Sources
  • Expert Review Green
Phenotypes
  • Diabetes mellitus, permanent neonatal 3, with or without neurologic features, autosomal recessive
Tags
special_consideration
OMIM
600509
Clinvar variants
Variants in ABCC8
Penetrance
None
Mode of Pathogenicity
Loss-of-function variants (as defined in pop up message) DO NOT cause this phenotype - please provide details in the comments
Panels with this gene

History Filter Activity

25 Sep 2024, Gel status: 3

Added Tag

Arina Puzriakova (Genomics England Curator)

Tag special_consideration tag was added to gene: ABCC8.

6 Feb 2024, Gel status: 3

Set Phenotypes

Sarah Leigh (Genomics England Curator)

Phenotypes for gene: ABCC8 were changed from Diabetes mellitus, permanent neonatal 3, with or without neurologic features to Diabetes mellitus, permanent neonatal 3, with or without neurologic features, autosomal recessive

14 Sep 2023, Gel status: 3

Set Phenotypes

Mafalda Gomes (Genomics England Curator)

Added phenotypes Diabetes mellitus, permanent neonatal 3, with or without neurologic features for gene: ABCC8

5 Jul 2023, Gel status: 3

Set mode of inheritance, Set Phenotypes

Mafalda Gomes (Genomics England Curator)

Mode of inheritance for gene ABCC8 was changed from BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal to BIALLELIC, autosomal or pseudoautosomal Added phenotypes Diabetes mellitus, permanent neonatal 3, with or without neurologic features for gene: ABCC8

31 May 2023, Gel status: 3

Removed Tag

Mafalda Gomes (Genomics England Curator)

Tag GOF was removed from gene: ABCC8.

31 May 2023, Gel status: 3

Added New Source, Set Phenotypes, Status Update

Mafalda Gomes (Genomics England Curator)

Source Expert Review Green was added to ABCC8. Added phenotypes Diabetes mellitus, permanent neonatal 3, with or without neurologic features for gene: ABCC8 Rating Changed from No List (delete) to Green List (high evidence)

5 May 2023, Gel status: 0

Added New Source, Status Update

Mafalda Gomes (Genomics England Curator)

Source Expert Review Removed was added to ABCC8. Rating Changed from Green List (high evidence) to No List (delete)

9 Mar 2023, Gel status: 3

Added Tag

Mafalda Gomes (Genomics England Curator)

Tag GOF tag was added to gene: ABCC8.

9 Mar 2023, Gel status: 3

Created, Added New Source, Set mode of inheritance, Set Phenotypes, Set mode of pathogenicity

Mafalda Gomes (Genomics England Curator)

gene: ABCC8 was added gene: ABCC8 was added to Newborns additional phenotypes panel. Sources: Expert Review Green Mode of inheritance for gene: ABCC8 was set to BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal Phenotypes for gene: ABCC8 were set to Diabetes mellitus, permanent neonatal 3, with or without neurologic features Mode of pathogenicity for gene: ABCC8 was set to Loss-of-function variants (as defined in pop up message) DO NOT cause this phenotype - please provide details in the comments