Genetic Variant SLC24A1:p.Val608Phe (chr15-65625902-G-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_004727.3(SLC24A1):c.1822G>T(p.Val608Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,676 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V608I) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

SLC24A1
NM_004727.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.0680

Publications

0 publications found

Variant links:

Genes affected

SLC24A1 (HGNC:10975): (solute carrier family 24 member 1) This gene encodes a member of the potassium-dependent sodium/calcium exchanger protein family. The encoded protein plays an important role in sodium/calcium exchange in retinal rod and cone photoreceptors by mediating the extrusion of one calcium ion and one potassium ion in exchange for four sodium ions. Mutations in this gene may play a role in congenital stationary night blindness. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Dec 2011]

SLC24A1 Gene-Disease associations (from GenCC):

congenital stationary night blindness 1D
Inheritance: AR Classification: STRONG, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae)
congenital stationary night blindness
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

SLC24A1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.19704357).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC24A1	NM_004727.3 link	c.1822G>T	p.Val608Phe	missense_variant	Exon 2 of 10	ENST00000261892.11	NP_004718.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLC24A1	ENST00000261892.11 link	c.1822G>T	p.Val608Phe	missense_variant	Exon 2 of 10	1	NM_004727.3	ENSP00000261892.6

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461676

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727116

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53368

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111868

Other (OTH)

AF:

0.00

AC:

AN:

60374

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.093

BayesDel_addAF

Benign

-0.15

BayesDel_noAF

Benign

-0.46

CADD

Benign

0.28

(source)

DANN

Benign

0.84

DEOGEN2

Benign

0.021

T;T;.;.;.;.

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.079

LIST_S2

Benign

0.46

T;T;T;T;.;T

M_CAP

Benign

0.045

MetaRNN

Benign

0.20

T;T;T;T;T;T

MetaSVM

Benign

-0.79

MutationAssessor

Benign

0.90

.;L;L;.;L;L

PhyloP100

-0.068

PrimateAI

Benign

0.23

PROVEAN

Benign

-1.3

N;N;N;N;N;N

REVEL

Benign

0.17

Sift

Benign

0.052

T;T;T;T;T;T

Sift4G

Uncertain

0.059

T;T;T;T;T;T

Polyphen

0.024

B;B;.;.;.;B

Vest4

0.13

MutPred

0.38

Loss of MoRF binding (P = 0.0867);Loss of MoRF binding (P = 0.0867);Loss of MoRF binding (P = 0.0867);Loss of MoRF binding (P = 0.0867);Loss of MoRF binding (P = 0.0867);Loss of MoRF binding (P = 0.0867);

MVP

0.53

MPC

0.30

ClinPred

0.26

GERP RS

-2.7

Varity_R

0.11

gMVP

0.49

Mutation Taster

=90/10

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over