chr12-46229247-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_030674.4(SLC38A1):​c.220G>A​(p.Gly74Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000616 in 1,460,244 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

SLC38A1
NM_030674.4 missense

Scores

1
6
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.16
Variant links:
Genes affected
SLC38A1 (HGNC:13447): (solute carrier family 38 member 1) Amino acid transporters play essential roles in the uptake of nutrients, production of energy, chemical metabolism, detoxification, and neurotransmitter cycling. SLC38A1 is an important transporter of glutamine, an intermediate in the detoxification of ammonia and the production of urea. Glutamine serves as a precursor for the synaptic transmitter, glutamate (Gu et al., 2001 [PubMed 11325958]).[supplied by OMIM, Mar 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2
High AC in GnomAdExome4 at 9 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SLC38A1NM_030674.4 linkuse as main transcriptc.220G>A p.Gly74Ser missense_variant 5/17 ENST00000398637.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SLC38A1ENST00000398637.10 linkuse as main transcriptc.220G>A p.Gly74Ser missense_variant 5/171 NM_030674.4 P1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
0.00000616
AC:
9
AN:
1460244
Hom.:
0
Cov.:
29
AF XY:
0.00000275
AC XY:
2
AN XY:
726420
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:
0.00000810
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
Bravo
AF:
0.0000302

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsApr 19, 2023The c.220G>A (p.G74S) alteration is located in exon 5 (coding exon 3) of the SLC38A1 gene. This alteration results from a G to A substitution at nucleotide position 220, causing the glycine (G) at amino acid position 74 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
0.25
BayesDel_addAF
Benign
-0.12
T
BayesDel_noAF
Benign
-0.41
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.20
T;T;T;T;.;.;.
Eigen
Benign
-0.18
Eigen_PC
Benign
-0.050
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.92
.;.;.;D;.;D;T
M_CAP
Benign
0.017
T
MetaRNN
Uncertain
0.45
T;T;T;T;T;T;T
MetaSVM
Benign
-0.87
T
MutationAssessor
Benign
1.8
L;L;L;L;.;.;.
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Uncertain
0.78
T
PROVEAN
Pathogenic
-5.0
D;D;D;D;D;.;D
REVEL
Benign
0.14
Sift
Benign
0.054
T;T;T;T;D;.;T
Sift4G
Uncertain
0.034
D;D;D;D;D;D;.
Polyphen
0.0
B;B;B;B;B;B;.
Vest4
0.33
MutPred
0.71
Gain of catalytic residue at G74 (P = 0);Gain of catalytic residue at G74 (P = 0);Gain of catalytic residue at G74 (P = 0);Gain of catalytic residue at G74 (P = 0);Gain of catalytic residue at G74 (P = 0);Gain of catalytic residue at G74 (P = 0);Gain of catalytic residue at G74 (P = 0);
MVP
0.068
MPC
0.56
ClinPred
0.93
D
GERP RS
2.2
Varity_R
0.19
gMVP
0.69

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1223070997; hg19: chr12-46623030; API