X-108615024-G-A

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM2PP3_StrongPP5

The NM_033380.3(COL4A5):​c.2509G>A​(p.Gly837Ser) variant causes a missense, splice region 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. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in Lovd as Pathogenic (no stars).

Frequency

Genomes: not found (cov: 23)
Exomes 𝑓: 0.0 ( 0 hom. 0 hem. )
Failed GnomAD Quality Control

Consequence

COL4A5
NM_033380.3 missense, splice_region

Scores

13
3
1
Splicing: ADA: 1.000
2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 8.57
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 Likely_pathogenic. Variant got 7 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, max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.
PP5
Variant X-108615024-G-A is Pathogenic according to our data. Variant chrX-108615024-G-A is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
COL4A5NM_033380.3 linkuse as main transcriptc.2509G>A p.Gly837Ser missense_variant, splice_region_variant 30/53 ENST00000328300.11 NP_203699.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
COL4A5ENST00000328300.11 linkuse as main transcriptc.2509G>A p.Gly837Ser missense_variant, splice_region_variant 30/531 NM_033380.3 ENSP00000331902 P29400-2
COL4A5ENST00000483338.1 linkuse as main transcriptc.1333G>A p.Gly445Ser missense_variant, splice_region_variant 14/201 ENSP00000495685
COL4A5ENST00000361603.7 linkuse as main transcriptc.2509G>A p.Gly837Ser missense_variant, splice_region_variant 30/512 ENSP00000354505 P1P29400-1

Frequencies

GnomAD3 genomes
Cov.:
23
GnomAD4 exome
Data not reliable, filtered out with message: AC0;AS_VQSR
AF:
0.00
AC:
0
AN:
1044301
Hom.:
0
Cov.:
25
AF XY:
0.00
AC XY:
0
AN XY:
315293
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
23

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.43
BayesDel_addAF
Pathogenic
0.47
D
BayesDel_noAF
Pathogenic
0.44
CADD
Pathogenic
32
DANN
Uncertain
0.99
DEOGEN2
Pathogenic
0.91
.;D;D
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.95
D;D;D
M_CAP
Pathogenic
0.81
D
MetaRNN
Pathogenic
0.99
D;D;D
MetaSVM
Pathogenic
0.99
D
MutationAssessor
Pathogenic
3.9
H;H;.
MutationTaster
Benign
1.0
A;A
PrimateAI
Pathogenic
0.80
T
PROVEAN
Pathogenic
-4.7
D;D;.
REVEL
Pathogenic
0.96
Sift
Pathogenic
0.0
D;D;.
Sift4G
Pathogenic
0.0
D;D;.
Polyphen
0.99, 1.0
.;D;D
Vest4
0.80
MutPred
0.99
Gain of phosphorylation at G837 (P = 0.0233);Gain of phosphorylation at G837 (P = 0.0233);.;
MVP
0.93
MPC
0.30
ClinPred
1.0
D
GERP RS
4.5
Varity_R
0.99
gMVP
0.99

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
1.0
SpliceAI score (max)
0.64
Details are displayed if max score is > 0.2
DS_DL_spliceai
0.64
Position offset: 0

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: rs104886185; hg19: chrX-107858254; API