rs386833892

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PM2PP3_StrongPP5_Moderate

The NM_004646.4(NPHS1):​c.1760T>G​(p.Leu587Arg) variant causes a missense, splice region change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Pathogenic (★). Synonymous variant affecting the same amino acid position (i.e. L587L) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

NPHS1
NM_004646.4 missense, splice_region

Scores

7
9
2

Clinical Significance

Pathogenic criteria provided, single submitter P:3

Conservation

PhyloP100: 5.31

Publications

8 publications found
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 Gene-Disease associations (from GenCC):
  • congenital nephrotic syndrome, Finnish type
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Myriad Women’s Health, G2P, Labcorp Genetics (formerly Invitae), ClinGen
  • familial idiopathic steroid-resistant nephrotic syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 8 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.991
PP5
Variant 19-35845538-A-C is Pathogenic according to our data. Variant chr19-35845538-A-C is described in ClinVar as Pathogenic. ClinVar VariationId is 56450.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004646.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
NPHS1
NM_004646.4
MANE Select
c.1760T>Gp.Leu587Arg
missense splice_region
Exon 14 of 29NP_004637.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
NPHS1
ENST00000378910.10
TSL:1 MANE Select
c.1760T>Gp.Leu587Arg
missense splice_region
Exon 14 of 29ENSP00000368190.4
NPHS1
ENST00000353632.6
TSL:5
c.1760T>Gp.Leu587Arg
missense splice_region
Exon 14 of 28ENSP00000343634.5
NPHS1
ENST00000585400.1
TSL:1
n.-28T>G
upstream_gene
N/A

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1459282
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
725868
African (AFR)
AF:
0.00
AC:
0
AN:
33436
American (AMR)
AF:
0.00
AC:
0
AN:
44416
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26024
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39638
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85980
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52844
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5728
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111014
Other (OTH)
AF:
0.00
AC:
0
AN:
60202
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:3
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Finnish congenital nephrotic syndrome Pathogenic:2
May 11, 2023
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Variant summary: NPHS1 c.1760T>G (p.Leu587Arg) results in a non-conservative amino acid change located in the CD80-like, immunoglobulin C2-set domain (IPR013162) of the encoded protein sequence. Five of five in-silico tools predict a damaging effect of the variant on protein function. 4/4 computational tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. The variant was absent in 238368 control chromosomes (gnomAD). c.1760T>G has been reported in the literature as a biallelic genotype in multiple individuals affected with Nephrotic Syndrome (e.g. Schoeb_2010, Warejko_2018, Chen_2019). These data indicate that the variant is very likely to be associated with disease. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publications have been ascertained in the context of this evaluation (PMID: 31456999, 20172850, 29127259). One ClinVar submitter has assessed the variant since 2014: the variant was classified as likely pathogenic. Based on the evidence outlined above, the variant was classified as pathogenic.

Juha Muilu Group; Institute for Molecular Medicine Finland (FIMM)
Significance:Likely pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

Nephrotic syndrome Pathogenic:1
Nov 10, 2017
Yale Center for Mendelian Genomics, Yale University
Significance:Likely pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.32
BayesDel_addAF
Pathogenic
0.37
D
BayesDel_noAF
Pathogenic
0.29
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.86
D
Eigen
Uncertain
0.50
Eigen_PC
Uncertain
0.38
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Benign
0.74
T
M_CAP
Pathogenic
0.78
D
MetaRNN
Pathogenic
0.99
D
MetaSVM
Uncertain
0.30
D
MutationAssessor
Uncertain
2.3
M
PhyloP100
5.3
PrimateAI
Uncertain
0.57
T
PROVEAN
Uncertain
-4.2
D
REVEL
Pathogenic
0.81
Sift
Uncertain
0.0010
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.91
MutPred
0.95
Gain of methylation at K582 (P = 0.0283)
MVP
0.97
MPC
2.3
ClinPred
0.99
D
GERP RS
4.0
Varity_R
0.95
gMVP
0.91
Mutation Taster
=29/71
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.080
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs386833892; hg19: chr19-36336440; API