2-44275729-A-G

Position:

• chr2-44275729-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PP3_Moderate

The NM_000341.4(SLC3A1):​c.194A>G​(p.Tyr65Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000116 in 1,461,862 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars). Synonymous variant affecting the same amino acid position (i.e. Y65Y) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.000012 (0 hom.)
• Consequence: SLC3A1 NM_000341.4 missense
• Clinical Significance: Uncertain significance no assertion criteria provided U:1
• Conservation: PhyloP100: 3.31

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PP3: MetaRNN computational evidence supports a deleterious effect, 0.885

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SLC3A1	NM_000341.4	c.194A>G	p.Tyr65Cys	missense_variant	1/10	ENST00000260649.11
SLC3A1	XM_011533047.4	c.194A>G	p.Tyr65Cys	missense_variant	1/10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SLC3A1	ENST00000260649.11	c.194A>G	p.Tyr65Cys	missense_variant	1/10	1	NM_000341.4	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.0000116 AC: 17 AN: 1461862 Hom.: 0 Cov.: 34 AF XY: 0.00000825 AC XY: 6 AN XY: 727238

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: 0.0000153

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, no assertion criteria provided

research

Gharavi Laboratory, Columbia University

Sep 16, 2018

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.32
BayesDel_addAF	Pathogenic	0.34	D
BayesDel_noAF	Pathogenic	0.25
CADD	Benign	21
DANN	Uncertain	1.0
DEOGEN2	Benign	0.20	T;D;T;.;.;.
Eigen	Uncertain	0.44
Eigen_PC	Uncertain	0.34
FATHMM_MKL	Uncertain	0.87	D
LIST_S2	Uncertain	0.94	D;D;D;D;D;D
M_CAP	Pathogenic	0.47	D
MetaRNN	Pathogenic	0.88	D;D;D;D;D;D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Pathogenic	3.1	.;M;.;M;M;M
MutationTaster	Benign	1.0	D;D;D;D;D
PrimateAI	Uncertain	0.58	T
PROVEAN	Pathogenic	-4.8	.;D;D;D;D;D
REVEL	Pathogenic	0.82
Sift	Uncertain	0.0010	.;D;D;D;D;D
Sift4G	Pathogenic	0.0010	D;D;D;D;D;D
Polyphen		1.0	.;D;D;.;.;.
Vest4		0.80
MutPred		0.47		Gain of catalytic residue at P64 (P = 0.0086);Gain of catalytic residue at P64 (P = 0.0086);Gain of catalytic residue at P64 (P = 0.0086);Gain of catalytic residue at P64 (P = 0.0086);Gain of catalytic residue at P64 (P = 0.0086);Gain of catalytic residue at P64 (P = 0.0086);
MVP		0.98
MPC		0.031
ClinPred		1.0	D
GERP RS		3.0
Varity_R		0.75
gMVP		0.79

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

Other links and lift over

dbSNP: rs1030612485; hg19: chr2-44502868;