2-44320349-G-A

Position:

chr2-44320349-G-A

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_Strong

The NM_000341.4(SLC3A1):c.1768G>A(p.Asp590Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000836 in 1,614,078 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00035 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000055 ( 0 hom. )

Consequence

SLC3A1
NM_000341.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.42

Variant links:

Genes affected

SLC3A1 (HGNC:11025): (solute carrier family 3 member 1) This gene encodes a type II membrane glycoprotein which is one of the components of the renal amino acid transporter which transports neutral and basic amino acids in the renal tubule and intestinal tract. Mutations and deletions in this gene are associated with cystinuria. Alternatively spliced transcript variants have been described, but their biological validity has not been determined. [provided by RefSeq, Jul 2008]

SLC3A1 links:

PREPL (HGNC:30228): (prolyl endopeptidase like) The protein encoded by this gene belongs to the prolyl oligopeptidase subfamily of serine peptidases. Mutations in this gene have been associated with hypotonia-cystinuria syndrome, also known as the 2p21 deletion syndrome. Several alternatively spliced transcript variants encoding either the same or different isoforms have been described for this gene.[provided by RefSeq, Jan 2010]

PREPL links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.026929379).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SLC3A1	NM_000341.4 linkuse as main transcript	c.1768G>A	p.Asp590Asn	missense_variant	10/10	ENST00000260649.11	NP_000332.2
PREPL	NM_001171613.2 linkuse as main transcript	c.*1007C>T		3_prime_UTR_variant	14/14	ENST00000409411.6	NP_001165084.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SLC3A1	ENST00000260649.11 linkuse as main transcript	c.1768G>A	p.Asp590Asn	missense_variant	10/10	1	NM_000341.4	ENSP00000260649	P1	Q07837-1
PREPL	ENST00000409411.6 linkuse as main transcript	c.*1007C>T		3_prime_UTR_variant	14/14	1	NM_001171613.2	ENSP00000387095	P4	Q4J6C6-4

Frequencies

GnomAD3 genomes

AF:

0.000342

AC:

AN:

152154

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00113

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000111

AC:

AN:

251160

Hom.:

AF XY:

0.000118

AC XY:

AN XY:

135728

show subpopulations

Gnomad AFR exome

AF:

0.00105

Gnomad AMR exome

AF:

0.0000578

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000381

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000554

AC:

AN:

1461806

Hom.:

Cov.:

AF XY:

0.0000495

AC XY:

AN XY:

727204

show subpopulations

Gnomad4 AFR exome

AF:

0.00155

Gnomad4 AMR exome

AF:

0.0000447

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000378

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000270

Gnomad4 OTH exome

AF:

0.000132

GnomAD4 genome

AF:

0.000355

AC:

AN:

152272

Hom.:

Cov.:

AF XY:

0.000363

AC XY:

AN XY:

74456

show subpopulations

Gnomad4 AFR

AF:

0.00118

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.000208

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000727

Hom.:

Bravo

AF:

0.000514

ESP6500AA

AF:

0.00113

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000148

AC:

Asia WGS

AF:

0.000578

AC:

AN:

3476

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Cystinuria

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Aug 30, 2021

This sequence change replaces aspartic acid with asparagine at codon 590 of the SLC3A1 protein (p.Asp590Asn). The aspartic acid residue is moderately conserved and there is a small physicochemical difference between aspartic acid and asparagine. This variant is present in population databases (rs200436145, ExAC 0.1%). This variant has not been reported in the literature in individuals affected with SLC3A1-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The asparagine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.082

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.22

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.23

T;.;.

Eigen

Benign

-0.65

Eigen_PC

Benign

-0.54

FATHMM_MKL

Uncertain

0.76

LIST_S2

Benign

0.77

T;T;T

M_CAP

Benign

0.079

MetaRNN

Benign

0.027

T;T;T

MetaSVM

Uncertain

0.24

MutationAssessor

Benign

1.9

L;.;.

MutationTaster

Benign

0.51

N;N;N;N;N;N;N

PrimateAI

Benign

0.38

PROVEAN

Benign

-1.2

N;N;N

REVEL

Benign

0.27

Sift

Benign

0.30

T;T;T

Sift4G

Benign

0.47

T;T;T

Polyphen

0.021

B;.;.

Vest4

0.12

MVP

0.71

MPC

0.0066

ClinPred

0.016

GERP RS

4.2

Varity_R

0.063

gMVP

0.51

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

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