20-25079464-A-T

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 1P and 6B. PP3BP6_ModerateBS2

The NM_014588.6(VSX1):​c.475T>A​(p.Leu159Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000088 in 1,612,832 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000094 ( 0 hom. )

Consequence

VSX1
NM_014588.6 missense

Scores

1
4
11

Clinical Significance

Likely benign criteria provided, single submitter U:1B:1

Conservation

PhyloP100: 1.54

Publications

24 publications found
Variant links:
Genes affected
VSX1 (HGNC:12723): (visual system homeobox 1) The protein encoded by this gene contains a paired-like homeodomain and binds to the core of the locus control region of the red/green visual pigment gene cluster. The encoded protein may regulate expression of the cone opsin genes early in development. Mutations in this gene can cause posterior polymorphous corneal dystrophy and keratoconus. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jul 2008]
VSX1 Gene-Disease associations (from GenCC):
  • posterior polymorphous corneal dystrophy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • keratoconus 1
    Inheritance: AD, Unknown Classification: LIMITED Submitted by: G2P, Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae)
  • craniofacial anomalies and anterior segment dysgenesis syndrome
    Inheritance: Unknown, AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae), G2P
  • posterior polymorphous corneal dystrophy 1
    Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.819
BP6
Variant 20-25079464-A-T is Benign according to our data. Variant chr20-25079464-A-T is described in ClinVar as Likely_benign. ClinVar VariationId is 5249.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High AC in GnomAdExome4 at 138 AD,Unknown gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
VSX1NM_014588.6 linkc.475T>A p.Leu159Met missense_variant Exon 2 of 5 ENST00000376709.9 NP_055403.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
VSX1ENST00000376709.9 linkc.475T>A p.Leu159Met missense_variant Exon 2 of 5 1 NM_014588.6 ENSP00000365899.3

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152114
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000481
AC:
12
AN:
249630
AF XY:
0.0000593
show subpopulations
Gnomad AFR exome
AF:
0.00
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:
0.000106
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000945
AC:
138
AN:
1460718
Hom.:
0
Cov.:
31
AF XY:
0.0000853
AC XY:
62
AN XY:
726532
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33456
American (AMR)
AF:
0.00
AC:
0
AN:
44662
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26098
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85880
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53400
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5416
European-Non Finnish (NFE)
AF:
0.000123
AC:
137
AN:
1111764
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60344
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.477
Heterozygous variant carriers
0
9
17
26
34
43
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.0000263
AC:
4
AN:
152114
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74310
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41414
American (AMR)
AF:
0.00
AC:
0
AN:
15274
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10610
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
68022
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.0000434
Hom.:
0
Bravo
AF:
0.0000378
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

Significance: Likely benign
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Keratoconus 1 Uncertain:1
Jan 01, 2011
OMIM
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:literature only

Posterior polymorphous corneal dystrophy Benign:1
Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign.

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.090
BayesDel_addAF
Uncertain
0.051
T
BayesDel_noAF
Uncertain
0.040
CADD
Benign
6.4
DANN
Uncertain
0.99
DEOGEN2
Benign
0.0
.;.;T;.
Eigen
Benign
-0.71
Eigen_PC
Benign
-0.78
LIST_S2
Benign
0.22
T;T;T;T
M_CAP
Benign
0.074
D
MetaRNN
Pathogenic
0.82
D;D;D;D
MetaSVM
Uncertain
-0.013
T
MutationAssessor
Benign
1.5
L;L;L;L
PhyloP100
1.5
PrimateAI
Benign
0.35
T
PROVEAN
Benign
0.30
N;N;N;N
Sift
Benign
0.16
T;T;T;T
Sift4G
Benign
0.28
T;T;T;T
Vest4
0.61
ClinPred
0.11
T
GERP RS
1.6
Varity_R
0.080
gMVP
0.18
Mutation Taster
=0/100
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
Splicevardb
2.0
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs74315434; hg19: chr20-25060100; API