rs587776403

Variant summary

Our verdict is Pathogenic. The variant received 12 ACMG points: 12P and 0B. PVS1_ModeratePM2PP5_Very_Strong

The NM_033380.3(COL4A5):​c.4315+1G>A variant causes a splice donor, intron change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000167 in 1,196,899 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. 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 ClinVar as Pathogenic (★★).

Frequency

Genomes: 𝑓 0.0000090 ( 0 hom., 0 hem., cov: 23)
Exomes 𝑓: 9.2e-7 ( 0 hom. 0 hem. )

Consequence

COL4A5
NM_033380.3 splice_donor, intron

Scores

3
1
Splicing: ADA: 1.000
2

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:6

Conservation

PhyloP100: 9.61

Publications

0 publications found
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]
COL4A5 Gene-Disease associations (from GenCC):
  • Alport syndrome
    Inheritance: XL Classification: DEFINITIVE Submitted by: G2P, ClinGen
  • X-linked Alport syndrome
    Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Genomics England PanelApp, Myriad Women’s Health

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 12 ACMG points.

PVS1
Splicing +-2 bp (donor or acceptor) variant, product NOT destroyed by NMD, known LOF gene, truncates exone, which is 0.019503547 fraction of the gene. Cryptic splice site detected, with MaxEntScore 5.6, offset of -18, new splice context is: cagGTctgc. Cryptic site results in inframe change. If cryptic site found is not functional and variant results in exon loss, it results in inframe change.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant X-108686130-G-A is Pathogenic according to our data. Variant chrX-108686130-G-A is described in ClinVar as Pathogenic. ClinVar VariationId is 24725.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_033380.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
COL4A5
NM_033380.3
MANE Select
c.4315+1G>A
splice_donor intron
N/ANP_203699.1P29400-2
COL4A5
NM_000495.5
c.4297+1G>A
splice_donor intron
N/ANP_000486.1P29400-1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
COL4A5
ENST00000328300.11
TSL:1 MANE Select
c.4315+1G>A
splice_donor intron
N/AENSP00000331902.7P29400-2
COL4A5
ENST00000949143.1
c.4309+1G>A
splice_donor intron
N/AENSP00000619202.1
COL4A5
ENST00000361603.7
TSL:2
c.4297+1G>A
splice_donor intron
N/AENSP00000354505.2P29400-1

Frequencies

GnomAD3 genomes
AF:
0.00000897
AC:
1
AN:
111516
Hom.:
0
Cov.:
23
show subpopulations
Gnomad AFR
AF:
0.0000326
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000560
AC:
1
AN:
178644
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.0000780
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
9.21e-7
AC:
1
AN:
1085383
Hom.:
0
Cov.:
27
AF XY:
0.00
AC XY:
0
AN XY:
351207
show subpopulations
African (AFR)
AF:
0.0000383
AC:
1
AN:
26086
American (AMR)
AF:
0.00
AC:
0
AN:
35032
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19273
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30083
South Asian (SAS)
AF:
0.00
AC:
0
AN:
53457
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40395
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4025
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
831362
Other (OTH)
AF:
0.00
AC:
0
AN:
45670
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000897
AC:
1
AN:
111516
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
33676
show subpopulations
African (AFR)
AF:
0.0000326
AC:
1
AN:
30679
American (AMR)
AF:
0.00
AC:
0
AN:
10477
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2643
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3542
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2630
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6021
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
237
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
53109
Other (OTH)
AF:
0.00
AC:
0
AN:
1496
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
ExAC
AF:
0.00000824
AC:
1

ClinVar

ClinVar submissions
Significance:Pathogenic
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
3
-
-
not provided (3)
3
-
-
X-linked Alport syndrome (3)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.61
D
BayesDel_noAF
Pathogenic
0.40
CADD
Pathogenic
35
DANN
Uncertain
1.0
FATHMM_MKL
Pathogenic
1.0
D
PhyloP100
9.6
GERP RS
5.2
Mutation Taster
=0/100
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.94
SpliceAI score (max)
1.0
Details are displayed if max score is > 0.2
DS_DG_spliceai
0.71
Position offset: 8
DS_DL_spliceai
1.0
Position offset: -1

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

Publications

Other links and lift over

dbSNP: rs587776403; hg19: chrX-107929360; API