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GeneBe

14-92323850-T-C

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_153646.4(SLC24A4):c.20T>C(p.Leu7Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00012 in 1,588,906 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00012 ( 1 hom. )

Consequence

SLC24A4
NM_153646.4 missense

Scores

2
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0690
Variant links:
Genes affected
SLC24A4 (HGNC:10978): (solute carrier family 24 member 4) This gene encodes a sodium/potassium/calcium exchange protein. The encoded antiporter transports one calcium and one potassium ion in exchange for four sodium ions and has been implicated in amelogenesis and enamel maturation. Certain variants in this gene have been associated with skin, hair, and eye pigmentation, while other variants have been identified in people with hypomaturation-type amelogenesis imperfecta. [provided by RefSeq, Nov 2023]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.02008).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SLC24A4NM_153646.4 linkuse as main transcriptc.20T>C p.Leu7Pro missense_variant 1/17 ENST00000532405.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SLC24A4ENST00000532405.6 linkuse as main transcriptc.20T>C p.Leu7Pro missense_variant 1/171 NM_153646.4 A1Q8NFF2-1
SLC24A4ENST00000393265.6 linkuse as main transcriptc.-63+1215T>C intron_variant 1 Q8NFF2-2
SLC24A4ENST00000676001.1 linkuse as main transcriptc.20T>C p.Leu7Pro missense_variant 2/18 A1Q8NFF2-1
SLC24A4ENST00000531433.5 linkuse as main transcriptc.20T>C p.Leu7Pro missense_variant 2/182 P4Q8NFF2-3

Frequencies

GnomAD3 genomes
AF:
0.000105
AC:
16
AN:
152092
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00144
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000132
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000159
AC:
34
AN:
213910
Hom.:
0
AF XY:
0.000180
AC XY:
21
AN XY:
116540
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00201
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000716
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000132
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000121
AC:
174
AN:
1436696
Hom.:
1
Cov.:
31
AF XY:
0.000140
AC XY:
100
AN XY:
713786
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00151
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000155
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000976
Gnomad4 OTH exome
AF:
0.000134
GnomAD4 genome
AF:
0.000105
AC:
16
AN:
152210
Hom.:
0
Cov.:
32
AF XY:
0.0000806
AC XY:
6
AN XY:
74432
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00144
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000132
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000304
Hom.:
0
Bravo
AF:
0.0000453
ExAC
AF:
0.0000993
AC:
12
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMar 17, 2023The c.20T>C (p.L7P) alteration is located in exon 1 (coding exon 1) of the SLC24A4 gene. This alteration results from a T to C substitution at nucleotide position 20, causing the leucine (L) at amino acid position 7 to be replaced by a proline (P). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.052
BayesDel_addAF
Benign
-0.32
T
BayesDel_noAF
Benign
-0.49
Cadd
Benign
13
Dann
Benign
0.94
Eigen
Benign
-1.2
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.12
N
LIST_S2
Benign
0.41
T;T
M_CAP
Uncertain
0.088
D
MetaRNN
Benign
0.020
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.0
N;N
MutationTaster
Benign
0.83
D;D;D
PrimateAI
Uncertain
0.59
T
PROVEAN
Benign
0.21
N;N
REVEL
Benign
0.054
Sift
Benign
0.053
T;T
Sift4G
Benign
0.13
T;T
Polyphen
0.0
B;.
Vest4
0.16
MutPred
0.39
Gain of disorder (P = 0.0175);Gain of disorder (P = 0.0175);
MVP
0.49
MPC
0.45
ClinPred
0.039
T
GERP RS
-2.2
Varity_R
0.050
gMVP
0.72

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: rs780908617; hg19: chr14-92790194; API