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20-25079464-A-T

Variant summary

Our verdict is Likely benign. Variant got -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
5
12

Clinical Significance

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

Conservation

PhyloP100: 1.54
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -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 id is 5249.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High AC in GnomAdExome4 at 138 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
VSX1NM_014588.6 linkuse as main transcriptc.475T>A p.Leu159Met missense_variant 2/5 ENST00000376709.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
VSX1ENST00000376709.9 linkuse as main transcriptc.475T>A p.Leu159Met missense_variant 2/51 NM_014588.6 P1Q9NZR4-1

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
GnomAD3 exomes
AF:
0.0000481
AC:
12
AN:
249630
Hom.:
0
AF XY:
0.0000593
AC XY:
8
AN XY:
134898
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 SAS 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
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:
0.000123
Gnomad4 OTH exome
AF:
0.0000166
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
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00
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
Uncertain significance, no assertion criteria providedliterature onlyOMIMJan 01, 2011- -
Posterior polymorphous corneal dystrophy Benign:1
Likely benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaApr 27, 2017This 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
Eigen
Benign
-0.71
Eigen_PC
Benign
-0.78
FATHMM_MKL
Benign
0.068
N
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
MutationTaster
Benign
1.0
N;N;N;N;N;N
PrimateAI
Benign
0.35
T
PROVEAN
Benign
0.30
N;N;N;N
REVEL
Uncertain
0.59
Sift
Benign
0.16
T;T;T;T
Sift4G
Benign
0.28
T;T;T;T
Polyphen
0.98
D;P;B;P
Vest4
0.61
MutPred
0.75
Gain of catalytic residue at L159 (P = 0.0066);Gain of catalytic residue at L159 (P = 0.0066);Gain of catalytic residue at L159 (P = 0.0066);Gain of catalytic residue at L159 (P = 0.0066);
MVP
0.72
MPC
0.11
ClinPred
0.11
T
GERP RS
1.6
Varity_R
0.080
gMVP
0.18

Splicing

Name
Calibrated prediction
Score
Prediction
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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs74315434; hg19: chr20-25060100; API