2-44304280-A-ATG

Position:

• chr2-44304280-A-ATG

Variant summary

Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PVS1 PM2 PP5

The NM_000341.4(SLC3A1):​c.1275_1276dup​(p.Glu426ValfsTer20) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Likely pathogenic (no stars). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 32)
• Consequence: SLC3A1 NM_000341.4 frameshift
• Clinical Significance: Likely pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 0.379

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 Pathogenic. Variant got 11 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 2-44304280-A-ATG is Pathogenic according to our data. Variant chr2-44304280-A-ATG is described in ClinVar as [Likely_pathogenic]. Clinvar id is 212741.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SLC3A1	NM_000341.4	c.1275_1276dup	p.Glu426ValfsTer20	frameshift_variant	7/10	ENST00000260649.11
SLC3A1	XM_011533047.4	c.1275_1276dup	p.Glu426ValfsTer20	frameshift_variant	7/10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SLC3A1	ENST00000260649.11	c.1275_1276dup	p.Glu426ValfsTer20	frameshift_variant	7/10	1	NM_000341.4	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Cystinuria Pathogenic:1

Likely pathogenic, no assertion criteria provided

clinical testing

Knight Diagnostic Laboratories, Oregon Health and Sciences University

Apr 10, 2014

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Computational scores

Source: dbNSFP v4.3

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs797044609; hg19: chr2-44531419;