chrX-108615029-G-C
Position:
Variant summary
Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate
The NM_033380.3(COL4A5):c.2509+5G>C variant causes a splice donor 5th base, intron change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: not found (cov: 22)
Consequence
COL4A5
NM_033380.3 splice_donor_5th_base, intron
NM_033380.3 splice_donor_5th_base, intron
Scores
2
Splicing: ADA: 0.9997
2
Clinical Significance
Conservation
PhyloP100: 4.48
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 Uncertain_significance. Variant got 4 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
PP3
Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. Scorers claiming Uncertain: max_spliceai. No scorers claiming Benign.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
COL4A5 | NM_033380.3 | c.2509+5G>C | splice_donor_5th_base_variant, intron_variant | ENST00000328300.11 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
COL4A5 | ENST00000328300.11 | c.2509+5G>C | splice_donor_5th_base_variant, intron_variant | 1 | NM_033380.3 | ||||
COL4A5 | ENST00000483338.1 | c.1333+5G>C | splice_donor_5th_base_variant, intron_variant | 1 | |||||
COL4A5 | ENST00000361603.7 | c.2509+5G>C | splice_donor_5th_base_variant, intron_variant | 2 | P1 |
Frequencies
GnomAD3 genomes Cov.: 22
GnomAD3 genomes
Cov.:
22
GnomAD4 exome Cov.: 23
GnomAD4 exome
Cov.:
23
GnomAD4 genome Cov.: 22
GnomAD4 genome
Cov.:
22
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Athena Diagnostics | Nov 27, 2023 | Available data are insufficient to determine the clinical significance of the variant at this time. This variant has been identified in at least one individual tested at Athena Diagnostics with clinical features associated with this gene. This variant has not been reported in large, multi-ethnic general populations (http://gnomad.broadinstitute.org). Computational tools yielded predictions that this variant may interfere with normal RNA splicing. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
Splicing
Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
dbscSNV1_RF
Pathogenic
SpliceAI score (max)
Details are displayed if max score is > 0.2
DS_DL_spliceai
Position offset: -5
Find out detailed SpliceAI scores and Pangolin per-transcript scores at