rs74315435

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_014588.6(VSX1):​c.766G>T​(p.Ala256Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000105 in 1,550,320 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. A256A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00063 ( 1 hom., cov: 33)
Exomes 𝑓: 0.000048 ( 0 hom. )

Consequence

VSX1
NM_014588.6 missense

Scores

5
14

Clinical Significance

Uncertain significance criteria provided, single submitter P:1U:1

Conservation

PhyloP100: 1.41

Publications

7 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: Benign. The variant received -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.009385645).
BS2
High AC in GnomAd4 at 96 AD,Unknown gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
VSX1NM_014588.6 linkc.766G>T p.Ala256Ser missense_variant Exon 4 of 5 ENST00000376709.9 NP_055403.2 Q9NZR4-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
VSX1ENST00000376709.9 linkc.766G>T p.Ala256Ser missense_variant Exon 4 of 5 1 NM_014588.6 ENSP00000365899.3 Q9NZR4-1

Frequencies

GnomAD3 genomes
AF:
0.000592
AC:
90
AN:
152078
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00208
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.0000147
Gnomad OTH
AF:
0.000479
GnomAD2 exomes
AF:
0.0000984
AC:
15
AN:
152504
AF XY:
0.0000493
show subpopulations
Gnomad AFR exome
AF:
0.00166
Gnomad AMR exome
AF:
0.0000812
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:
0.0000479
AC:
67
AN:
1398126
Hom.:
0
Cov.:
31
AF XY:
0.0000348
AC XY:
24
AN XY:
689626
show subpopulations
African (AFR)
AF:
0.00177
AC:
56
AN:
31582
American (AMR)
AF:
0.0000560
AC:
2
AN:
35704
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25166
East Asian (EAS)
AF:
0.00
AC:
0
AN:
35744
South Asian (SAS)
AF:
0.0000126
AC:
1
AN:
79204
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
48364
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5534
European-Non Finnish (NFE)
AF:
0.00000185
AC:
2
AN:
1078866
Other (OTH)
AF:
0.000104
AC:
6
AN:
57962
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.480
Heterozygous variant carriers
0
6
12
19
25
31
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.000631
AC:
96
AN:
152194
Hom.:
1
Cov.:
33
AF XY:
0.000591
AC XY:
44
AN XY:
74400
show subpopulations
African (AFR)
AF:
0.00222
AC:
92
AN:
41510
American (AMR)
AF:
0.000131
AC:
2
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5170
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4808
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
292
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68004
Other (OTH)
AF:
0.000474
AC:
1
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
4
8
11
15
19
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:
0.000208
Hom.:
0
Bravo
AF:
0.000672
ESP6500AA
AF:
0.00200
AC:
8
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000783
AC:
6

ClinVar

Significance: Uncertain significance
Submissions summary: Pathogenic:1Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Craniofacial anomalies and anterior segment dysgenesis syndrome Pathogenic:1
Apr 01, 2004
OMIM
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

- -

not specified Uncertain:1
May 04, 2022
Mendelics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.082
BayesDel_addAF
Benign
-0.28
T
BayesDel_noAF
Benign
-0.18
CADD
Benign
14
DANN
Uncertain
0.99
DEOGEN2
Benign
0.40
.;T
Eigen
Benign
-0.43
Eigen_PC
Benign
-0.48
FATHMM_MKL
Benign
0.72
D
LIST_S2
Benign
0.54
T;T
M_CAP
Benign
0.055
D
MetaRNN
Benign
0.0094
T;T
MetaSVM
Uncertain
0.22
D
MutationAssessor
Benign
1.7
L;L
PhyloP100
1.4
PrimateAI
Benign
0.43
T
PROVEAN
Uncertain
-2.5
D;D
REVEL
Benign
0.28
Sift
Uncertain
0.017
D;D
Sift4G
Uncertain
0.027
D;D
Polyphen
0.34
B;P
Vest4
0.42
MVP
0.81
MPC
0.11
ClinPred
0.072
T
GERP RS
2.5
Varity_R
0.16
gMVP
0.67
Mutation Taster
=4/96
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs74315435; hg19: chr20-25058363; API