Genetic Variant SLC38A7:p.Ala403Ser (chr16-58671069-C-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_018231.3(SLC38A7):c.1207G>T(p.Ala403Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000871 in 1,607,792 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A403T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000069 ( 0 hom. )

Consequence

SLC38A7
NM_018231.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.77

Variant links:

Genes affected

SLC38A7 (HGNC:25582): (solute carrier family 38 member 7) Predicted to enable L-amino acid transmembrane transporter activity. Predicted to be involved in amino acid transmembrane transport and sodium ion transport. Predicted to be located in axon and neuronal cell body. [provided by Alliance of Genome Resources, Apr 2022]

SLC38A7 links:

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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 rank	MANE	Protein	UniProt
SLC38A7	NM_018231.3 link	c.1207G>T	p.Ala403Ser	missense_variant	Exon 10 of 12	ENST00000219320.9	NP_060701.1	Q9NVC3-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLC38A7	ENST00000219320.9 link	c.1207G>T	p.Ala403Ser	missense_variant	Exon 10 of 12	1	NM_018231.3	ENSP00000219320.3		Q9NVC3-1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152106

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000212

AC:

AN:

236084

Hom.:

AF XY:

0.0000156

AC XY:

AN XY:

128222

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000473

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000687

AC:

AN:

1455686

Hom.:

Cov.:

AF XY:

0.00000553

AC XY:

AN XY:

723858

show subpopulations

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:

0.00000901

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152106

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74290

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000151

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 13, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1207G>T (p.A403S) alteration is located in exon 10 (coding exon 8) of the SLC38A7 gene. This alteration results from a G to T substitution at nucleotide position 1207, causing the alanine (A) at amino acid position 403 to be replaced by a serine (S). 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

0.30

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.36

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.065

T;T;T

Eigen

Uncertain

0.33

Eigen_PC

Uncertain

0.45

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.84

.;T;T

M_CAP

Benign

0.028

MetaRNN

Uncertain

0.61

D;D;D

MetaSVM

Benign

-0.86

MutationAssessor

Benign

1.8

L;L;.

PrimateAI

Uncertain

0.66

PROVEAN

Benign

-2.0

N;N;N

REVEL

Benign

0.24

Sift

Benign

0.21

T;T;T

Sift4G

Benign

0.11

T;T;T

Polyphen

0.41

B;B;.

Vest4

0.67

MutPred

0.72

Loss of sheet (P = 0.0457);Loss of sheet (P = 0.0457);.;

MVP

0.48

MPC

0.57

ClinPred

0.67

GERP RS

5.7

Varity_R

0.25

gMVP

0.73

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over