5-36608562-C-G

Variant summary

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

The NM_004172.5(SLC1A3):c.139C>G(p.Arg47Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,748 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: SLC1A3 NM_004172.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.90

Genes affected

SLC1A3 (HGNC:10941): (solute carrier family 1 member 3) This gene encodes a member of a member of a high affinity glutamate transporter family. This gene functions in the termination of excitatory neurotransmission in central nervous system. Mutations are associated with episodic ataxia, Type 6. Alternative splicing results in multiple transcript variants.[provided by RefSeq, Feb 2014]

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
SLC1A3	NM_004172.5	c.139C>G	p.Arg47Gly	missense_variant	2/10	ENST00000265113.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SLC1A3	ENST00000265113.9	c.139C>G	p.Arg47Gly	missense_variant	2/10	1	NM_004172.5	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461748 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727184

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

SLC1A3-related disorder Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Nov 15, 2022

The SLC1A3 c.139C>G variant is predicted to result in the amino acid substitution p.Arg47Gly. To our knowledge, this variant has not been reported in the literature or in a large population database (http://gnomad.broadinstitute.org), indicating this variant is rare. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.25
BayesDel_addAF	Pathogenic	0.23	D
BayesDel_noAF	Uncertain	0.090
Cadd	Benign	23
Dann	Uncertain	1.0
DEOGEN2	Benign	0.086	T;.;D;T;T;T;.
Eigen	Benign	-0.065
Eigen_PC	Benign	0.14
FATHMM_MKL	Uncertain	0.78	D
LIST_S2	Uncertain	0.96	D;D;D;D;.;D;D
M_CAP	Benign	0.019	T
MetaRNN	Uncertain	0.54	D;D;D;D;D;D;D
MetaSVM	Benign	-1.0	T
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Uncertain	0.70	T
Sift4G	Benign	0.14	T;D;T;T;T;T;D
Polyphen		0.023	.;.;B;.;.;.;.
Vest4		0.81
MutPred		0.66		Loss of solvent accessibility (P = 0.0193);Loss of solvent accessibility (P = 0.0193);Loss of solvent accessibility (P = 0.0193);Loss of solvent accessibility (P = 0.0193);Loss of solvent accessibility (P = 0.0193);Loss of solvent accessibility (P = 0.0193);Loss of solvent accessibility (P = 0.0193);
MVP		0.58
MPC		1.3
ClinPred		0.99	D
GERP RS		5.5
Varity_R		0.40
gMVP		0.66

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: chr5-36608664;