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GeneBe

20-19212850-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_020689.4(SLC24A3):c.8C>T(p.Pro3Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000109 in 1,105,308 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P3T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000014 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

SLC24A3
NM_020689.4 missense

Scores

4
1
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.234
Variant links:
Genes affected
SLC24A3 (HGNC:10977): (solute carrier family 24 member 3) Plasma membrane sodium/calcium exchangers are an important component of intracellular calcium homeostasis and electrical conduction. Potassium-dependent sodium/calcium exchangers such as SLC24A3 are believed to transport 1 intracellular calcium and 1 potassium ion in exchange for 4 extracellular sodium ions (Kraev et al., 2001 [PubMed 11294880]).[supplied by OMIM, Mar 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.14492148).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SLC24A3NM_020689.4 linkuse as main transcriptc.8C>T p.Pro3Leu missense_variant 1/17 ENST00000328041.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SLC24A3ENST00000328041.11 linkuse as main transcriptc.8C>T p.Pro3Leu missense_variant 1/171 NM_020689.4 P1
ENST00000446849.1 linkuse as main transcript downstream_gene_variant 3

Frequencies

GnomAD3 genomes
AF:
0.0000136
AC:
2
AN:
147136
Hom.:
0
Cov.:
31
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:
0.0000302
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.0000104
AC:
10
AN:
958172
Hom.:
0
Cov.:
29
AF XY:
0.0000133
AC XY:
6
AN XY:
450524
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:
0.0000119
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000136
AC:
2
AN:
147136
Hom.:
0
Cov.:
31
AF XY:
0.0000139
AC XY:
1
AN XY:
71688
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:
0.0000302
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsApr 07, 2022The c.8C>T (p.P3L) alteration is located in exon 1 (coding exon 1) of the SLC24A3 gene. This alteration results from a C to T substitution at nucleotide position 8, causing the proline (P) at amino acid position 3 to be replaced by a leucine (L). 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
0.13
BayesDel_addAF
Benign
-0.12
T
BayesDel_noAF
Benign
-0.40
Cadd
Benign
22
Dann
Uncertain
0.99
DEOGEN2
Benign
0.13
T;T
Eigen
Benign
-0.64
Eigen_PC
Benign
-0.54
FATHMM_MKL
Benign
0.44
N
M_CAP
Pathogenic
0.50
D
MetaRNN
Benign
0.14
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
-0.55
N;N
MutationTaster
Benign
1.0
N
PrimateAI
Pathogenic
0.85
D
PROVEAN
Benign
-0.27
N;.
REVEL
Benign
0.091
Sift
Pathogenic
0.0
D;.
Sift4G
Pathogenic
0.0
D;D
Polyphen
0.088
B;B
Vest4
0.17
MutPred
0.25
Loss of relative solvent accessibility (P = 0.0981);Loss of relative solvent accessibility (P = 0.0981);
MVP
0.20
MPC
1.1
ClinPred
0.52
D
GERP RS
4.0
Varity_R
0.24
gMVP
0.17

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: rs1301224311; hg19: chr20-19193494; API