X-108591591-GC-GCC

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate

The NM_033380.3(COL4A5):​c.1376dup​(p.Gly460ArgfsTer5) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 22)

Consequence

COL4A5
NM_033380.3 frameshift

Scores

Not classified

Clinical Significance

Pathogenic criteria provided, single submitter P:2

Conservation

PhyloP100: -0.0370
Variant links:
Genes affected
COL4A5 (HGNC:2207): (collagen type IV alpha 5 chain) This gene encodes one of the six subunits of type IV collagen, the major structural component of basement membranes. Mutations in this gene are associated with X-linked Alport syndrome, also known as hereditary nephritis. 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. Alternatively spliced transcript variants have been identified for this gene. [provided by RefSeq, Aug 2010]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 12 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant X-108591591-G-GC is Pathogenic according to our data. Variant chrX-108591591-G-GC is described in ClinVar as [Pathogenic]. Clinvar id is 24405.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
COL4A5NM_033380.3 linkuse as main transcriptc.1376dup p.Gly460ArgfsTer5 frameshift_variant 21/53 ENST00000328300.11 NP_203699.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
COL4A5ENST00000328300.11 linkuse as main transcriptc.1376dup p.Gly460ArgfsTer5 frameshift_variant 21/531 NM_033380.3 ENSP00000331902 P29400-2
COL4A5ENST00000483338.1 linkuse as main transcriptc.200dup p.Gly68ArgfsTer5 frameshift_variant 5/201 ENSP00000495685
COL4A5ENST00000361603.7 linkuse as main transcriptc.1376dup p.Gly460ArgfsTer5 frameshift_variant 21/512 ENSP00000354505 P1P29400-1

Frequencies

GnomAD3 genomes
Cov.:
22
GnomAD4 exome
Cov.:
28
GnomAD4 genome
Cov.:
22

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpAug 24, 2021- -
X-linked Alport syndrome Pathogenic:1
Pathogenic, no assertion criteria providedclinical testingNatera, Inc.Aug 25, 2020- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs104886113; hg19: chrX-107834821; API