chr15-48121060-G-A

Position:

• chr15-48121060-G-A

Variant summary

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

The NM_205850.3(SLC24A5):​c.16G>A​(p.Gly6Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,522 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: 0.0000021 (0 hom.)
• Consequence: SLC24A5 NM_205850.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.579

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=0.08360648).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SLC24A5	NM_205850.3	c.16G>A	p.Gly6Ser	missense_variant	1/9	ENST00000341459.8
SLC24A5	XM_047432394.1	c.16G>A	p.Gly6Ser	missense_variant	1/8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SLC24A5	ENST00000341459.8	c.16G>A	p.Gly6Ser	missense_variant	1/9	1	NM_205850.3	P1
SLC24A5	ENST00000449382.2	c.16G>A	p.Gly6Ser	missense_variant	1/8	1
SLC24A5	ENST00000482911.2	c.16G>A	p.Gly6Ser	missense_variant	1/2	2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461522 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 727038

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.0000766

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

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

Apr 29, 2022

This variant has not been reported in the literature in individuals affected with SLC24A5-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The serine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces glycine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 6 of the SLC24A5 protein (p.Gly6Ser). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.082
BayesDel_addAF	Benign	-0.049	T
BayesDel_noAF	Benign	-0.31
CADD	Benign	12
DANN	Uncertain	0.99
DEOGEN2	Benign	0.29	T;.;.
Eigen	Benign	-0.76
Eigen_PC	Benign	-0.64
FATHMM_MKL	Benign	0.13	N
LIST_S2	Benign	0.61	T;T;T
M_CAP	Benign	0.028	D
MetaRNN	Benign	0.084	T;T;T
MetaSVM	Benign	-0.92	T
MutationAssessor	Uncertain	2.3	M;.;M
MutationTaster	Benign	1.0	N;N;N
PrimateAI	Benign	0.36	T
PROVEAN	Benign	-0.10	N;N;N
REVEL	Benign	0.088
Sift	Benign	0.15	T;D;T
Sift4G	Benign	0.35	T;T;D
Polyphen		0.0010	B;.;.
Vest4		0.099
MutPred		0.22		Loss of catalytic residue at G6 (P = 0.0257);Loss of catalytic residue at G6 (P = 0.0257);Loss of catalytic residue at G6 (P = 0.0257);
MVP		0.77
MPC		0.066
ClinPred		0.14	T
GERP RS		2.6
Varity_R		0.035
gMVP		0.47

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: rs199613368; hg19: chr15-48413257;