1-94842068-G-A

Variant summary

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

The NM_001114106.3(SLC44A3):c.829G>A(p.Glu277Lys) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,338 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: SLC44A3 NM_001114106.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.05

Genes affected

SLC44A3 (HGNC:28689): (solute carrier family 44 member 3) Predicted to enable transmembrane transporter activity. Predicted to be involved in transmembrane transport. Predicted to be located in plasma membrane. Predicted to be active in membrane. [provided by Alliance of Genome Resources, Apr 2022]

SLC44A3-AS1 (HGNC:49057): (SLC44A3 antisense RNA 1)

ACMG classification

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
SLC44A3	NM_001114106.3	c.829G>A	p.Glu277Lys	missense_variant	8/15	ENST00000271227.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SLC44A3	ENST00000271227.11	c.829G>A	p.Glu277Lys	missense_variant	8/15	1	NM_001114106.3	P1
SLC44A3-AS1	ENST00000634339.1	n.178+13176C>T		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461338 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 726948

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: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 08, 2023

The c.829G>A (p.E277K) alteration is located in exon 8 (coding exon 8) of the SLC44A3 gene. This alteration results from a G to A substitution at nucleotide position 829, causing the glutamic acid (E) at amino acid position 277 to be replaced by a lysine (K). 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	0.16
BayesDel_addAF	Uncertain	0.11	D
BayesDel_noAF	Uncertain	-0.080
Cadd	Pathogenic	26
Dann	Pathogenic	1.0
Eigen	Uncertain	0.60
Eigen_PC	Uncertain	0.63
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.93	D;D;D;D;D;D
M_CAP	Benign	0.0080	T
MetaRNN	Uncertain	0.55	D;D;D;D;D;D
MetaSVM	Benign	-1.2	T
MutationTaster	Benign	1.0	D;D;D;D;D;D
PrimateAI	Uncertain	0.61	T
PROVEAN	Benign	-2.0	N;N;N;N;N;N
REVEL	Benign	0.16
Sift	Benign	0.23	T;T;T;T;T;T
Sift4G	Benign	0.34	T;T;T;T;T;T
Polyphen		0.93	P;D;.;.;.;D
Vest4		0.71
MutPred		0.30		.;Gain of ubiquitination at E277 (P = 0.0128);.;.;.;.;
MVP		0.42
MPC		0.63
ClinPred		0.86	D
GERP RS		5.9
Varity_R		0.27
gMVP		0.54

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr1-95307624;