rs116617171

Positions:

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_004646.4(NPHS1):c.65C>T(p.Ala22Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000554 in 1,612,420 control chromosomes in the GnomAD database, including 9 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00040 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00057 ( 9 hom. )

Consequence

NPHS1
NM_004646.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:4

Conservation

PhyloP100: 1.51

Variant links:

Genes affected

NPHS1 (HGNC:7908): (NPHS1 adhesion molecule, nephrin) This gene encodes a member of the immunoglobulin family of cell adhesion molecules that functions in the glomerular filtration barrier in the kidney. The gene is primarily expressed in renal tissues, and the protein is a type-1 transmembrane protein found at the slit diaphragm of glomerular podocytes. The slit diaphragm is thought to function as an ultrafilter to exclude albumin and other plasma macromolecules in the formation of urine. Mutations in this gene result in Finnish-type congenital nephrosis 1, characterized by severe proteinuria and loss of the slit diaphragm and foot processes.[provided by RefSeq, Oct 2009]

NPHS1 links:

KIRREL2 (HGNC:18816): (kirre like nephrin family adhesion molecule 2) This gene encodes a type I transmembrane protein and member of the immunoglobulin superfamily of cell adhesion molecules. The encoded protein localizes to adherens junctions in pancreatic beta cells and regulates insulin secretion. Autoantibodies against the encoded protein have been detected in serum from patients with type 1 diabetes. This gene may also play a role in glomerular development and decreased expression of this gene has been observed in human glomerular diseases. This gene and the related opposite-strand gene nephrin (GeneID: 527362) are regulated by a bidirectional promoter. [provided by RefSeq, Jul 2016]

KIRREL2 links:

NPHS1 (HGNC:):

NPHS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0076437593).

BP6

Variant 19-35851666-G-A is Benign according to our data. Variant chr19-35851666-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 225424.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1, Benign=2}. Variant chr19-35851666-G-A is described in Lovd as [Likely_benign].

BS1

Variant frequency is greater than expected in population eas. gnomad4_exome allele frequency = 0.000571 (833/1460096) while in subpopulation EAS AF= 0.0194 (767/39636). AF 95% confidence interval is 0.0182. There are 9 homozygotes in gnomad4_exome. There are 388 alleles in male gnomad4_exome subpopulation. Median coverage is 35. This position pass quality control queck.

BS2

High Homozygotes in GnomAdExome4 at 9 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
NPHS1	NM_004646.4 linkuse as main transcript	c.65C>T	p.Ala22Val	missense_variant	2/29	ENST00000378910.10	NP_004637.1	O60500-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
NPHS1	ENST00000378910.10 linkuse as main transcript	c.65C>T	p.Ala22Val	missense_variant	2/29	1	NM_004646.4	ENSP00000368190.4	O60500-1
NPHS1	ENST00000353632.6 linkuse as main transcript	c.65C>T	p.Ala22Val	missense_variant	2/28	5		ENSP00000343634.5	O60500-2
NPHS1	ENST00000591817.1 linkuse as main transcript	n.566C>T		non_coding_transcript_exon_variant	4/4	5

Frequencies

GnomAD3 genomes

AF:

0.000401

AC:

AN:

152206

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.000288

Gnomad EAS

AF:

0.0108

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

GnomAD3 exomes

AF:

0.00103

AC:

249

AN:

242312

Hom.:

AF XY:

0.000896

AC XY:

118

AN XY:

131666

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000588

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0129

Gnomad SAS exome

AF:

0.0000665

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000741

Gnomad OTH exome

AF:

0.000503

GnomAD4 exome

AF:

0.000571

AC:

833

AN:

1460096

Hom.:

Cov.:

AF XY:

0.000534

AC XY:

388

AN XY:

726242

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000450

Gnomad4 ASJ exome

AF:

0.000230

Gnomad4 EAS exome

AF:

0.0194

Gnomad4 SAS exome

AF:

0.0000931

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000288

Gnomad4 OTH exome

AF:

0.000299

GnomAD4 genome

AF:

0.000400

AC:

AN:

152324

Hom.:

Cov.:

AF XY:

0.000456

AC XY:

AN XY:

74492

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.0000653

Gnomad4 ASJ

AF:

0.000288

Gnomad4 EAS

AF:

0.0108

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000560

Hom.:

Bravo

AF:

0.000427

ExAC

AF:

0.00112

AC:

136

Asia WGS

AF:

0.00520

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:4

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Finnish congenital nephrotic syndrome

Uncertain:1Benign:2

Uncertain significance, criteria provided, single submitter	reference population	Soonchunhyang University Bucheon Hospital, Soonchunhyang University Medical Center	Mar 18, 2016	- -
Benign, no assertion criteria provided	clinical testing	Natera, Inc.	Sep 16, 2020	- -
Likely benign, criteria provided, single submitter	clinical testing	Counsyl	Dec 15, 2017	- -

not specified

Benign:1

Benign, criteria provided, single submitter

clinical testing

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Jun 14, 2022

Variant summary: NPHS1 c.65C>T (p.Ala22Val) results in a non-conservative amino acid change in the encoded protein sequence. Three of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.001 in 242312 control chromosomes (gnomAD), predominantly at a frequency of 0.013 within the East Asian subpopulation in the gnomAD database, including 1 homozygote. The observed variant frequency within East Asian control individuals in the gnomAD database is approximately 4 fold of the estimated maximal expected allele frequency for a pathogenic variant in NPHS1 causing Nephrotic Syndrome, Type 1 (0.0034), strongly suggesting that the variant is a benign polymorphism found primarily in populations of East Asian origin. Four ClinVar submitters have assessed the variant since 2014: one classified the variant as of uncertain significance, one as likely benign, and two as benign. Based on the evidence outlined above, the variant was classified as benign. -

not provided

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 31, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.43

BayesDel_noAF

Benign

-0.37

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.26

T;.

Eigen

Benign

-0.29

Eigen_PC

Benign

-0.12

FATHMM_MKL

Uncertain

0.76

LIST_S2

Benign

0.76

T;T

MetaRNN

Benign

0.0076

T;T

MetaSVM

Benign

-0.95

MutationAssessor

Benign

0.63

N;N

PrimateAI

Benign

0.30

PROVEAN

Benign

-1.3

N;N

REVEL

Benign

0.12

Sift

Uncertain

0.0090

D;D

Sift4G

Benign

0.28

T;T

Polyphen

0.0080

B;.

Vest4

0.36

MVP

0.77

MPC

0.17

ClinPred

0.040

GERP RS

4.1

Varity_R

0.088

gMVP

0.51

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

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