rs767619131
Variant summary
Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PM2PP3_StrongPP5_Very_Strong
The NM_033380.3(COL4A5):c.412G>A(p.Gly138Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000917 in 1,090,008 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 1 hemizygotes in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★).
Frequency
Consequence
NM_033380.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 14 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
COL4A5 | ENST00000328300.11 | c.412G>A | p.Gly138Ser | missense_variant | Exon 7 of 53 | 1 | NM_033380.3 | ENSP00000331902.7 | ||
COL4A5 | ENST00000361603.7 | c.412G>A | p.Gly138Ser | missense_variant | Exon 7 of 51 | 2 | ENSP00000354505.2 |
Frequencies
GnomAD3 genomes Cov.: 23
GnomAD3 exomes AF: 0.00000546 AC: 1AN: 183271Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 67817
GnomAD4 exome AF: 9.17e-7 AC: 1AN: 1090008Hom.: 0 Cov.: 27 AF XY: 0.00000281 AC XY: 1AN XY: 356124
GnomAD4 genome Cov.: 23
ClinVar
Submissions by phenotype
not provided Pathogenic:2
For these reasons, this variant has been classified as Pathogenic. This variant disrupts the triple helix domain of COL4A5. Glycine residues within the Gly-Xaa-Yaa repeats of the triple helix domain are required for the structure and stability of fibrillar collagens (PMID: 7695699, 8218237, 19344236). In COL4A5, missense variants at these glycine residues are significantly enriched in individuals with disease (PMID: 23720012, 27627812) compared to the general population (ExAC). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt COL4A5 protein function. ClinVar contains an entry for this variant (Variation ID: 587139). This missense change has been observed in individuals with Alport syndrome (PMID: 24033287, 29854973). This variant is present in population databases (rs767619131, gnomAD 0.001%). This sequence change replaces glycine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 138 of the COL4A5 protein (p.Gly138Ser). -
COL4A5: PM1:Strong, PM2, PM5, PS4:Supporting -
X-linked Alport syndrome Pathogenic:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at