chr12-46206161-C-T

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_030674.4(SLC38A1):​c.565G>A​(p.Ala189Thr) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000256 in 1,601,410 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/23 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

SLC38A1
NM_030674.4 missense, splice_region

Scores

2
17
Splicing: ADA: 0.09092
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.07
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 -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.19574046).
BS2
High AC in GnomAdExome4 at 39 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SLC38A1NM_030674.4 linkuse as main transcriptc.565G>A p.Ala189Thr missense_variant, splice_region_variant 9/17 ENST00000398637.10 NP_109599.3 Q9H2H9A0A024R124

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SLC38A1ENST00000398637.10 linkuse as main transcriptc.565G>A p.Ala189Thr missense_variant, splice_region_variant 9/171 NM_030674.4 ENSP00000381634.4 Q9H2H9

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152096
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.0000269
AC:
39
AN:
1449314
Hom.:
0
Cov.:
27
AF XY:
0.0000291
AC XY:
21
AN XY:
721494
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:
0.0000335
Gnomad4 OTH exome
AF:
0.0000334
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152096
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74294
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000151

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 GeneticsJun 21, 2022The c.565G>A (p.A189T) alteration is located in exon 9 (coding exon 7) of the SLC38A1 gene. This alteration results from a G to A substitution at nucleotide position 565, causing the alanine (A) at amino acid position 189 to be replaced by a threonine (T). 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
0.098
BayesDel_addAF
Benign
-0.15
T
BayesDel_noAF
Benign
-0.45
CADD
Benign
19
DANN
Uncertain
0.99
DEOGEN2
Benign
0.059
T;T;T;T;.;.
Eigen
Benign
-0.34
Eigen_PC
Benign
-0.17
FATHMM_MKL
Uncertain
0.77
D
LIST_S2
Benign
0.33
.;.;.;T;.;T
M_CAP
Benign
0.0082
T
MetaRNN
Benign
0.20
T;T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.3
L;L;L;L;.;.
PrimateAI
Benign
0.36
T
PROVEAN
Benign
-0.75
N;N;N;N;N;.
REVEL
Benign
0.099
Sift
Benign
0.37
T;T;T;T;T;.
Sift4G
Benign
0.45
T;T;T;T;T;T
Polyphen
0.0060
B;B;B;B;B;B
Vest4
0.27
MutPred
0.43
Gain of catalytic residue at D193 (P = 0.0026);Gain of catalytic residue at D193 (P = 0.0026);Gain of catalytic residue at D193 (P = 0.0026);Gain of catalytic residue at D193 (P = 0.0026);Gain of catalytic residue at D193 (P = 0.0026);Gain of catalytic residue at D193 (P = 0.0026);
MVP
0.37
MPC
0.63
ClinPred
0.39
T
GERP RS
5.7
Varity_R
0.075
gMVP
0.57

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.091
dbscSNV1_RF
Benign
0.21
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

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

Other links and lift over

dbSNP: rs1444976950; hg19: chr12-46599944; API