Cystic kidney disease

Gene: COL4A4

Amber List (moderate evidence)

COL4A4 (collagen type IV alpha 4 chain)
EnsemblGeneIds (GRCh38): ENSG00000081052
EnsemblGeneIds (GRCh37): ENSG00000081052
OMIM: 120131, Gene2Phenotype
COL4A4 is in 9 panels

3 reviews

Aakash Joshi (St George's Hospital)

Red List (low evidence)

PMCID 10910213 had a cohort of 16 patients with Alport of which 2 unrelated individuals had cystic renal disease. It is unclear whether these individuals would be classed as AD-PKD, but they were noted to not have any extra renal features.
Created: 29 Sep 2026, 12:38 p.m. | Last Modified: 29 Sep 2026, 12:38 p.m.
Panel Version: 9.3

Mode of inheritance
MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted

Phenotypes
cystic renal disease

Publications

Eleanor Williams (Genomics England Curator)

Green List (high evidence)

After NHS Genomic Medicine Service consideration, the rating of this gene has not been changed. The reviewers note that only 1 patient reported where they would be classed as AD-PKD. The other 3 are primarily TBMN patients who also have renal cysts.
Created: 7 Mar 2022, 3:39 p.m. | Last Modified: 7 Mar 2022, 3:39 p.m.
Panel Version: 2.33
Comment on list classification: Promoting this gene from grey to amber, but there are 3 cases so could be promoted to green following GMS review.
Created: 13 Jan 2021, 4:27 p.m. | Last Modified: 13 Jan 2021, 4:27 p.m.
Panel Version: 2.21
PMID: 31922066 - Gulati et al 2019 - using WES they identified heterozygous pathogenic COL4A4 mutations in 1 patient with "no PKD mutation detected"-autosomal dominant polycystic kidney disease (NMD-ADPKD) (a splice site variant) and 3 patients with Thin glomerular basement membrane (TBM) disease and cystic kidney (1 variant affects splice site, 2 are frameshift variants).
Created: 13 Jan 2021, 4:25 p.m. | Last Modified: 13 Jan 2021, 4:25 p.m.
Panel Version: 2.19

Mode of inheritance
MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown

Phenotypes
cystic kidney disease MONDO:0002473

Publications

John Sayer (Newcastle University)

I don't know

may phenocopy PKD1
Sources: Other


additional new publication
PMID: 38178635
Created: 5 Jun 2020, 3:05 p.m. | Last Modified: 30 Jun 2024, 10:46 a.m.
Panel Version: 5.8

Mode of inheritance
MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown

Phenotypes
cystic kidney disease

Publications

Details

Mode of Inheritance
MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Sources
  • Expert Review Amber
Phenotypes
  • Cystic kidney disease, MONDO:0002473
OMIM
120131
Clinvar variants
Variants in COL4A4
Penetrance
unknown
Publications
Panels with this gene

History Filter Activity

4 Nov 2024, Gel status: 2

Set publications

Arina Puzriakova (Genomics England Curator)

Publications for gene: COL4A4 were set to 31922066

7 Mar 2022, Gel status: 2

Removed Tag

Eleanor Williams (Genomics England Curator)

Tag for-review was removed from gene: COL4A4.

26 Oct 2021, Gel status: 2

Set Phenotypes

Arina Puzriakova (Genomics England Curator)

Phenotypes for gene: COL4A4 were changed from Cystic kidney disease, MONDO:0002473 to Cystic kidney disease, MONDO:0002473

26 Oct 2021, Gel status: 2

Set Phenotypes

Arina Puzriakova (Genomics England Curator)

Phenotypes for gene: COL4A4 were changed from cystic kidney disease MONDO:0002473 to Cystic kidney disease, MONDO:0002473

20 Jan 2021, Gel status: 2

Added Tag

Ivone Leong (Genomics England Curator)

Tag for-review tag was added to gene: COL4A4.

13 Jan 2021, Gel status: 2

Entity classified by Genomics England curator

Eleanor Williams (Genomics England Curator)

Gene: col4a4 has been classified as Amber List (Moderate Evidence).

13 Jan 2021, Gel status: 0

Set Phenotypes

Eleanor Williams (Genomics England Curator)

Phenotypes for gene: COL4A4 were changed from cystic kidney disease to cystic kidney disease MONDO:0002473

5 Jun 2020, Gel status: 0

Created, Added New Source, Set mode of inheritance, Set publications, Set Phenotypes, Set penetrance

John Sayer (Newcastle University)

gene: COL4A4 was added gene: COL4A4 was added to Cystic kidney disease. Sources: Other Mode of inheritance for gene: COL4A4 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: COL4A4 were set to 31922066 Phenotypes for gene: COL4A4 were set to cystic kidney disease Penetrance for gene: COL4A4 were set to unknown Review for gene: COL4A4 was set to AMBER