Genetic Variant NPHS2:p.Val260Glu (chr1-179554491-A-T) – ACMG Classification: Pathogenic (17 pts)

Variant summary

Our verdict is Pathogenic. The variant received 17 ACMG points: 17P and 0B. PS3PP2PP3_StrongPP5_Very_Strong

The NM_014625.4(NPHS2):c.779T>A(p.Val260Glu) variant causes a missense change. The variant allele was found at a frequency of 0.0000155 in 1,613,960 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 Pathogenic (★★). ClinVar reports functional evidence for this variant: "SCV001213285: Experimental studies have shown that this missense change affects NPHS2 function (PMID:14675423)." and additional evidence is available in ClinVar.

Frequency

Genomes: 𝑓 0.000099 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

NPHS2
NM_014625.4 missense

Scores

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:14

Conservation

PhyloP100: 5.49

Publications

21 publications found

Variant links:

Genes affected

NPHS2 (HGNC:13394): (NPHS2 stomatin family member, podocin) This gene encodes a protein that plays a role in the regulation of glomerular permeability. Mutations in this gene cause steroid-resistant nephrotic syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2014]

NPHS2 links:

AXDND1 (HGNC:26564): (axonemal dynein light chain domain containing 1)

AXDND1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 17 ACMG points.

PS3

PS3 evidence extracted from ClinVar submissions: SCV001213285: Experimental studies have shown that this missense change affects NPHS2 function (PMID: 14675423).; SCV006325377: Functional studies indicate that this sequence change impacts NPHS2 function (PMID: 28658201).; SCV000699385: A functional study demonstrated the variant to impair localization of NPHS2 to the plasma member ant to result accumulation of the variant in ER accumulation.; SCV001451468: Functional analysis of the p.Val260Glu variant protein in HEK293 cells demonstrated the variant results in retention of podocin in the endoplasmic reticulum in contrast to localization of the wild type protein at the plasma membrane demonstrating a trafficking defect (Roselli et al. 2004).; SCV005363246: This variant has been reported to be pathogenic for steroid-resistant nephrotic syndrome (SRNS) due to retention of the encoded protein (podocin) in the endoplasmic reticulum (see for example, Weber et al. 2004. PubMed ID: 15253708; Roselli et al. 2004. PubMed ID: 14675423; Bérody et al. 2019. PubMed ID: 29474669).

PP2

Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 29 curated pathogenic missense variants (we use a threshold of 10). The gene has 4 curated benign missense variants. Gene score misZ: 0.68612 (below the threshold of 3.09). Trascript score misZ: 0.038296 (below the threshold of 3.09). GenCC associations: The gene is linked to familial idiopathic steroid-resistant nephrotic syndrome, nephrotic syndrome, type 2.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.939

PP5

Variant 1-179554491-A-T is Pathogenic according to our data. Variant chr1-179554491-A-T is described in ClinVar as Pathogenic. ClinVar VariationId is 447882.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014625.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
NPHS2	NM_014625.4	MANE Select	c.779T>A	p.Val260Glu	missense	Exon 6 of 8	NP_055440.1	Q9NP85-1
AXDND1	NM_144696.6	MANE Select	c.3032-21A>T		intron	N/A	NP_653297.3
NPHS2	NM_001297575.2		c.575T>A	p.Val192Glu	missense	Exon 5 of 7	NP_001284504.1	Q9NP85-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
NPHS2	ENST00000367615.9	TSL:1 MANE Select	c.779T>A	p.Val260Glu	missense	Exon 6 of 8	ENSP00000356587.4	Q9NP85-1
NPHS2	ENST00000367616.4	TSL:1	c.575T>A	p.Val192Glu	missense	Exon 5 of 7	ENSP00000356588.4	Q9NP85-2
AXDND1	ENST00000367618.8	TSL:1 MANE Select	c.3032-21A>T		intron	N/A	ENSP00000356590.3	Q5T1B0-1

Frequencies

GnomAD3 genomes

AF:

0.0000986

AC:

AN:

152102

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000338

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.0000159

AC:

AN:

251264

AF XY:

0.00000736

show subpopulations

Gnomad AFR exome

AF:

0.000246

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000684

AC:

AN:

1461858

Hom.:

Cov.:

AF XY:

0.00000825

AC XY:

AN XY:

727234

show subpopulations

African (AFR)

AF:

0.000179

AC:

AN:

33476

American (AMR)

AF:

0.0000224

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111992

Other (OTH)

AF:

0.0000331

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.470

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000986

AC:

AN:

152102

Hom.:

Cov.:

AF XY:

0.000108

AC XY:

AN XY:

74310

show subpopulations

African (AFR)

AF:

0.000338

AC:

AN:

41414

American (AMR)

AF:

0.00

AC:

AN:

15280

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10600

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68004

Other (OTH)

AF:

0.000478

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.512

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000869

ExAC

AF:

0.0000165

AC:

ClinVar

ClinVar submissions

Significance:Pathogenic

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Nephrotic syndrome, type 2 (9)

not provided (3)

NPHS2-related disorder (1)

Steroid-resistant nephrotic syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.93

BayesDel_addAF

Pathogenic

0.31

BayesDel_noAF

Pathogenic

0.51

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

DEOGEN2

Pathogenic

0.98

Eigen

Pathogenic

0.83

Eigen_PC

Pathogenic

0.76

FATHMM_MKL

Uncertain

0.94

LIST_S2

Pathogenic

0.99

M_CAP

Pathogenic

0.41

MetaRNN

Pathogenic

0.94

MetaSVM

Pathogenic

1.1

MutationAssessor

Pathogenic

3.6

PhyloP100

5.5

PrimateAI

Uncertain

0.58

PROVEAN

Pathogenic

-5.6

REVEL

Pathogenic

0.95

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.85

MVP

0.92

MPC

1.2

ClinPred

0.99

GERP RS

5.4

Varity_R

0.99

gMVP

0.97

Mutation Taster

=11/89

disease causing (ClinVar)

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

Splicevardb

2.0

SpliceAI score (max)

0.020

Details are displayed if max score is > 0.2

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over