rs104886450
Variant summary
Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PM1PM2PM5PP3_StrongPP5_Very_Strong
The NM_033380.3(COL4A5):c.866G>A(p.Gly289Asp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G289S) has been classified as Likely pathogenic.
Frequency
Consequence
NM_033380.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 18 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
COL4A5 | NM_033380.3 | c.866G>A | p.Gly289Asp | missense_variant | 15/53 | ENST00000328300.11 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
COL4A5 | ENST00000328300.11 | c.866G>A | p.Gly289Asp | missense_variant | 15/53 | 1 | NM_033380.3 | ||
COL4A5 | ENST00000361603.7 | c.866G>A | p.Gly289Asp | missense_variant | 15/51 | 2 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 22
GnomAD4 exome Cov.: 30
GnomAD4 genome ? Cov.: 22
ClinVar
Submissions by phenotype
X-linked Alport syndrome Pathogenic:2
Likely pathogenic, criteria provided, single submitter | clinical testing | Institute of Human Genetics Munich, Klinikum Rechts Der Isar, TU München | Mar 02, 2022 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Revvity Omics, Revvity | Oct 13, 2020 | - - |
not provided Pathogenic:1
Likely pathogenic, criteria provided, single submitter | clinical testing | Invitae | Jan 15, 2021 | This sequence change replaces glycine with aspartic acid at codon 289 of the COL4A5 protein (p.Gly289Asp). The glycine residue is highly conserved and there is a moderate physicochemical difference between glycine and aspartic acid. In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely 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. This variant has been observed in individual(s) with clinical features of Alport syndrome (Invitae). This variant is not present in population databases (ExAC no frequency). - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at
Publications
No publications associated with this variant yet.