rs2396449
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Variant summary
Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_StrongBA1
The NM_000091.5(COL4A3):c.88-28883C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.152 in 152,144 control chromosomes in the GnomAD database, including 1,909 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.
Frequency
Genomes: 𝑓 0.15 ( 1909 hom., cov: 33)
Consequence
COL4A3
NM_000091.5 intron
NM_000091.5 intron
Scores
2
Clinical Significance
Not reported in ClinVar
Conservation
PhyloP100: -0.376
Genes affected
COL4A3 (HGNC:2204): (collagen type IV alpha 3 chain) Type IV collagen, the major structural component of basement membranes, is a multimeric protein composed of 3 alpha subunits. These subunits are encoded by 6 different genes, alpha 1 through alpha 6, each of which can form a triple helix structure with 2 other subunits to form type IV collagen. This gene encodes alpha 3. In the Goodpasture syndrome, autoantibodies bind to the collagen molecules in the basement membranes of alveoli and glomeruli. The epitopes that elicit these autoantibodies are localized largely to the non-collagenous C-terminal domain of the protein. A specific kinase phosphorylates amino acids in this same C-terminal region and the expression of this kinase is upregulated during pathogenesis. This gene is also linked to an autosomal recessive form of Alport syndrome. The mutations contributing to this syndrome are also located within the exons that encode this C-terminal region. Like the other members of the type IV collagen gene family, this gene is organized in a head-to-head conformation with another type IV collagen gene so that each gene pair shares a common promoter. [provided by RefSeq, Jun 2010]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -12 ACMG points.
BP4
?
Computational evidence support a benign effect (BayesDel_noAF=-0.98).
BA1
?
GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.185 is higher than 0.05.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
COL4A3 | NM_000091.5 | c.88-28883C>T | intron_variant | ENST00000396578.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
COL4A3 | ENST00000396578.8 | c.88-28883C>T | intron_variant | 1 | NM_000091.5 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.152 AC: 23127AN: 152026Hom.: 1910 Cov.: 33
GnomAD3 genomes
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33
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We have no GnomAD4 exomes data on this position. Probably position not covered by the project.
GnomAD4 genome ? AF: 0.152 AC: 23136AN: 152144Hom.: 1909 Cov.: 33 AF XY: 0.152 AC XY: 11328AN XY: 74376
GnomAD4 genome
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33
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11328
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74376
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202
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3478
ClinVar
Not reported inComputational scores
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Name
Calibrated prediction
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Prediction
BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at