20-25078806-C-T

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_199425.3(VSX1):​c.650G>A​(p.Arg217His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.2 in 1,613,780 control chromosomes in the GnomAD database, including 36,196 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/14 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.17 ( 2832 hom., cov: 32)
Exomes 𝑓: 0.20 ( 33364 hom. )

Consequence

VSX1
NM_199425.3 missense

Scores

13

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.159
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=7.990231E-5).
BP6
Variant 20-25078806-C-T is Benign according to our data. Variant chr20-25078806-C-T is described in ClinVar as [Benign]. Clinvar id is 1684215.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr20-25078806-C-T is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.502 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
VSX1NM_014588.6 linkuse as main transcriptc.627+23G>A intron_variant ENST00000376709.9 NP_055403.2 Q9NZR4-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
VSX1ENST00000376709.9 linkuse as main transcriptc.627+23G>A intron_variant 1 NM_014588.6 ENSP00000365899.3 Q9NZR4-1

Frequencies

GnomAD3 genomes
AF:
0.165
AC:
25082
AN:
151790
Hom.:
2834
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0396
Gnomad AMI
AF:
0.211
Gnomad AMR
AF:
0.220
Gnomad ASJ
AF:
0.172
Gnomad EAS
AF:
0.518
Gnomad SAS
AF:
0.176
Gnomad FIN
AF:
0.201
Gnomad MID
AF:
0.212
Gnomad NFE
AF:
0.194
Gnomad OTH
AF:
0.189
GnomAD3 exomes
AF:
0.211
AC:
52980
AN:
251472
Hom.:
6765
AF XY:
0.210
AC XY:
28544
AN XY:
135918
show subpopulations
Gnomad AFR exome
AF:
0.0350
Gnomad AMR exome
AF:
0.223
Gnomad ASJ exome
AF:
0.180
Gnomad EAS exome
AF:
0.510
Gnomad SAS exome
AF:
0.176
Gnomad FIN exome
AF:
0.198
Gnomad NFE exome
AF:
0.199
Gnomad OTH exome
AF:
0.206
GnomAD4 exome
AF:
0.204
AC:
297675
AN:
1461874
Hom.:
33364
Cov.:
71
AF XY:
0.203
AC XY:
147591
AN XY:
727240
show subpopulations
Gnomad4 AFR exome
AF:
0.0318
Gnomad4 AMR exome
AF:
0.224
Gnomad4 ASJ exome
AF:
0.180
Gnomad4 EAS exome
AF:
0.544
Gnomad4 SAS exome
AF:
0.173
Gnomad4 FIN exome
AF:
0.192
Gnomad4 NFE exome
AF:
0.200
Gnomad4 OTH exome
AF:
0.195
GnomAD4 genome
AF:
0.165
AC:
25081
AN:
151906
Hom.:
2832
Cov.:
32
AF XY:
0.170
AC XY:
12646
AN XY:
74234
show subpopulations
Gnomad4 AFR
AF:
0.0395
Gnomad4 AMR
AF:
0.220
Gnomad4 ASJ
AF:
0.172
Gnomad4 EAS
AF:
0.518
Gnomad4 SAS
AF:
0.176
Gnomad4 FIN
AF:
0.201
Gnomad4 NFE
AF:
0.194
Gnomad4 OTH
AF:
0.191
Alfa
AF:
0.197
Hom.:
8179
Bravo
AF:
0.164
TwinsUK
AF:
0.207
AC:
767
ALSPAC
AF:
0.191
AC:
736
ESP6500AA
AF:
0.0433
AC:
191
ESP6500EA
AF:
0.198
AC:
1700
ExAC
AF:
0.206
AC:
25047
Asia WGS
AF:
0.300
AC:
1043
AN:
3478
EpiCase
AF:
0.194
EpiControl
AF:
0.193

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Keratoconus 1 Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabDec 05, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.55
T
BayesDel_noAF
Benign
-0.41
CADD
Benign
3.5
DANN
Benign
0.86
Eigen
Benign
-1.5
Eigen_PC
Benign
-1.6
FATHMM_MKL
Benign
0.0094
N
LIST_S2
Benign
0.31
T
MetaRNN
Benign
0.000080
T
MetaSVM
Benign
-0.96
T
PROVEAN
Benign
2.6
N
REVEL
Benign
0.18
Sift
Benign
0.049
D
Polyphen
0.0080
B
Vest4
0.012
ClinPred
0.0018
T
GERP RS
-4.9

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

LitVar

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

Other links and lift over

dbSNP: rs6138482; hg19: chr20-25059442; COSMIC: COSV65021866; COSMIC: COSV65021866; API