rs878855332

Positions:

• chr9-100253087-TG-T

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1 PM2 PP5_Moderate

The ENST00000262457.7(INVS):​c.1417del​(p.Ala473GlnfsTer37) variant causes a frameshift change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (★). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 32)
• Consequence: INVS ENST00000262457.7 frameshift
• Clinical Significance: Pathogenic criteria provided, single submitter P:1 O:1
• Conservation: PhyloP100: 10.0

Genes affected

INVS (HGNC:17870): (inversin) This gene encodes a protein containing multiple ankyrin domains and two IQ calmodulin-binding domains. The encoded protein may function in renal tubular development and function, and in left-right axis determination. This protein interacts with nephrocystin and infers a connection between primary cilia function and left-right axis determination. A similar protein in mice interacts with calmodulin. Mutations in this gene have been associated with nephronophthisis type 2. Multiple transcript variants encoding distinct isoforms have been identified for this gene. [provided by RefSeq, May 2012]

ACMG classification

Verdict is Pathogenic. Variant got 12 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 9-100253087-TG-T is Pathogenic according to our data. Variant chr9-100253087-TG-T is described in ClinVar as [Pathogenic]. Clinvar id is 242358.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
INVS	NM_014425.5	c.1417del	p.Ala473GlnfsTer37	frameshift_variant	10/17	ENST00000262457.7	NP_055240.2
INVS	NM_001318381.2	c.1129del	p.Ala377GlnfsTer37	frameshift_variant	11/18		NP_001305310.1
INVS	NM_001318382.2	c.439del	p.Ala147GlnfsTer37	frameshift_variant	10/17		NP_001305311.1
INVS	NR_134606.2	n.1615del		non_coding_transcript_exon_variant	10/17

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
INVS	ENST00000262457.7	c.1417del	p.Ala473GlnfsTer37	frameshift_variant	10/17	1	NM_014425.5	ENSP00000262457	A2
INVS	ENST00000262456.6	c.1417del	p.Ala473GlnfsTer37	frameshift_variant	10/18	5		ENSP00000262456	P4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1 Other:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

CeGaT Center for Human Genetics Tuebingen

Feb 01, 2020

- -

Nephronophthisis Other:1

not provided, no classification provided

literature only

GeneReviews

-

- -

Computational scores

Source: dbNSFP v4.3

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

Other links and lift over

dbSNP: rs878855332; hg19: chr9-103015369;