15-48121159-G-T

Position:

• chr15-48121159-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_205850.3(SLC24A5):​c.115G>T​(p.Ala39Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,459,874 control chromosomes in the GnomAD database, with no homozygous occurrence. 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: not found (cov: 32)
  • Exomes 𝑓: 0.0000027 (0 hom.)
• Consequence: SLC24A5 NM_205850.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.07

Genes affected

SLC24A5 (HGNC:20611): (solute carrier family 24 member 5) This gene is a member of the potassium-dependent sodium/calcium exchanger family and encodes an intracellular membrane protein with 2 large hydrophilic loops and 2 sets of multiple transmembrane-spanning segments. Sequence variation in this gene has been associated with differences in skin pigmentation. [provided by RefSeq, Jul 2008]

ACMG classification

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=0.16296053).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SLC24A5	NM_205850.3	c.115G>T	p.Ala39Ser	missense_variant	1/9	ENST00000341459.8	NP_995322.1
SLC24A5	XM_047432394.1	c.115G>T	p.Ala39Ser	missense_variant	1/8		XP_047288350.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SLC24A5	ENST00000341459.8	c.115G>T	p.Ala39Ser	missense_variant	1/9	1	NM_205850.3	ENSP00000341550.3
SLC24A5	ENST00000449382.2	c.115G>T	p.Ala39Ser	missense_variant	1/8	1		ENSP00000389966.2
SLC24A5	ENST00000482911.2	c.115G>T	p.Ala39Ser	missense_variant	1/2	2		ENSP00000453395.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000274 AC: 4 AN: 1459874 Hom.: 0 Cov.: 30 AF XY: 0.00000413 AC XY: 3 AN XY: 726218

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: 0.00000270

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Mar 09, 2022

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. This variant has not been reported in the literature in individuals affected with SLC24A5-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces alanine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 39 of the SLC24A5 protein (p.Ala39Ser). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.091
BayesDel_addAF	Benign	-0.056	T
BayesDel_noAF	Benign	-0.32
CADD	Benign	18
DANN	Uncertain	0.99
DEOGEN2	Benign	0.24	T;.;.
Eigen	Benign	-0.21
Eigen_PC	Benign	0.033
FATHMM_MKL	Uncertain	0.92	D
LIST_S2	Benign	0.56	T;T;T
M_CAP	Benign	0.0092	T
MetaRNN	Benign	0.16	T;T;T
MetaSVM	Benign	-0.99	T
MutationAssessor	Uncertain	2.0	M;.;M
PrimateAI	Benign	0.37	T
PROVEAN	Benign	0.030	N;N;N
REVEL	Benign	0.23
Sift	Benign	0.61	T;T;T
Sift4G	Benign	0.77	T;T;T
Polyphen		0.36	B;.;.
Vest4		0.35
MutPred		0.18		Gain of disorder (P = 0.0218);Gain of disorder (P = 0.0218);Gain of disorder (P = 0.0218);
MVP		0.70
MPC		0.062
ClinPred		0.58	D
GERP RS		5.4
Varity_R		0.11
gMVP		0.45

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

Other links and lift over

dbSNP: rs1235896523; hg19: chr15-48413356;