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GeneBe

9-19619685-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_020344.4(SLC24A2):c.977C>T(p.Pro326Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000731 in 1,613,220 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000073 ( 0 hom. )

Consequence

SLC24A2
NM_020344.4 missense

Scores

6
10
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.96
Variant links:
Genes affected
SLC24A2 (HGNC:10976): (solute carrier family 24 member 2) This gene encodes a member of the calcium/cation antiporter superfamily of transport proteins. The encoded protein belongs to the SLC24 branch of exchangers, which can mediate the extrusion of one Ca2+ ion and one K+ ion in exchange for four Na+ ions. This family member is a retinal cone/brain exchanger that can mediate a light-induced decrease in free Ca2+ concentration. This protein may also play a neuroprotective role during ischemic brain injury. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SLC24A2NM_020344.4 linkuse as main transcriptc.977C>T p.Pro326Leu missense_variant 4/11 ENST00000341998.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SLC24A2ENST00000341998.7 linkuse as main transcriptc.977C>T p.Pro326Leu missense_variant 4/111 NM_020344.4 P3Q9UI40-1
SLC24A2ENST00000286344.4 linkuse as main transcriptc.977C>T p.Pro326Leu missense_variant 4/101 A1Q9UI40-2

Frequencies

GnomAD3 genomes
AF:
0.0000789
AC:
12
AN:
152168
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000385
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000188
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000797
AC:
20
AN:
250830
Hom.:
0
AF XY:
0.000103
AC XY:
14
AN XY:
135548
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000436
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000925
Gnomad NFE exome
AF:
0.0000883
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000726
AC:
106
AN:
1460934
Hom.:
0
Cov.:
31
AF XY:
0.0000867
AC XY:
63
AN XY:
726836
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000706
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.0000749
Gnomad4 NFE exome
AF:
0.0000594
Gnomad4 OTH exome
AF:
0.0000663
GnomAD4 genome
AF:
0.0000788
AC:
12
AN:
152286
Hom.:
0
Cov.:
33
AF XY:
0.0000940
AC XY:
7
AN XY:
74472
show subpopulations
Gnomad4 AFR
AF:
0.0000722
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000386
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000188
Gnomad4 NFE
AF:
0.0000735
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000263
Hom.:
0
Bravo
AF:
0.0000982
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000988
AC:
12
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.000178

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 GeneticsMay 11, 2022The c.977C>T (p.P326L) alteration is located in exon 3 (coding exon 3) of the SLC24A2 gene. This alteration results from a C to T substitution at nucleotide position 977, causing the proline (P) at amino acid position 326 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
Pathogenic
0.66
BayesDel_addAF
Uncertain
0.022
T
BayesDel_noAF
Uncertain
0.12
Cadd
Pathogenic
31
Dann
Uncertain
1.0
DEOGEN2
Uncertain
0.59
D;.
Eigen
Pathogenic
0.80
Eigen_PC
Pathogenic
0.82
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Pathogenic
0.98
D;D
M_CAP
Benign
0.082
D
MetaRNN
Uncertain
0.61
D;D
MetaSVM
Uncertain
0.0047
D
MutationAssessor
Pathogenic
2.9
M;M
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.73
T
PROVEAN
Pathogenic
-4.5
D;D
REVEL
Uncertain
0.56
Sift
Uncertain
0.0080
D;D
Sift4G
Benign
0.18
T;T
Polyphen
0.98
D;D
Vest4
0.88
MVP
0.93
MPC
0.38
ClinPred
0.69
D
GERP RS
5.8
Varity_R
0.25
gMVP
0.69

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: rs199744137; hg19: chr9-19619683; API