1-5863309-C-T

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_015102.5(NPHP4):c.4237G>A(p.Asp1413Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000544 in 1,614,042 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D1413E) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0031 ( 1 hom., cov: 33)

Exomes 𝑓: 0.00028 ( 3 hom. )

Consequence

NPHP4
NM_015102.5 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 7.45

Variant links:

Genes affected

NPHP4 (HGNC:19104): (nephrocystin 4) This gene encodes a protein involved in renal tubular development and function. This protein interacts with nephrocystin, and belongs to a multifunctional complex that is localized to actin- and microtubule-based structures. Mutations in this gene are associated with nephronophthisis type 4, a renal disease, and with Senior-Loken syndrome type 4, a combination of nephronophthisis and retinitis pigmentosa. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2014]

NPHP4 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.009869009).

BP6

Variant 1-5863309-C-T is Benign according to our data. Variant chr1-5863309-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 297784.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00308 (469/152356) while in subpopulation AFR AF= 0.0107 (443/41580). AF 95% confidence interval is 0.00984. There are 1 homozygotes in gnomad4. There are 210 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High Homozygotes in GnomAdExome at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NPHP4	NM_015102.5 linkuse as main transcript	c.4237G>A	p.Asp1413Asn	missense_variant	30/30	ENST00000378156.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NPHP4	ENST00000378156.9 linkuse as main transcript	c.4237G>A	p.Asp1413Asn	missense_variant	30/30	1	NM_015102.5	P2	O75161-1

Frequencies

GnomAD3 genomes

AF:

0.00306

AC:

466

AN:

152238

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0106

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00137

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:

0.0000147

Gnomad OTH

AF:

0.00191

GnomAD3 exomes

AF:

0.000768

AC:

190

AN:

247236

Hom.:

AF XY:

0.000566

AC XY:

AN XY:

134314

show subpopulations

Gnomad AFR exome

AF:

0.0110

Gnomad AMR exome

AF:

0.000261

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000654

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000901

Gnomad OTH exome

AF:

0.00116

GnomAD4 exome

AF:

0.000280

AC:

409

AN:

1461686

Hom.:

Cov.:

AF XY:

0.000243

AC XY:

177

AN XY:

727124

show subpopulations

Gnomad4 AFR exome

AF:

0.0105

Gnomad4 AMR exome

AF:

0.000447

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000540

Gnomad4 OTH exome

AF:

0.000497

GnomAD4 genome

AF:

0.00308

AC:

469

AN:

152356

Hom.:

Cov.:

AF XY:

0.00282

AC XY:

210

AN XY:

74496

show subpopulations

Gnomad4 AFR

AF:

0.0107

Gnomad4 AMR

AF:

0.00137

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00189

Alfa

AF:

0.00137

Hom.:

Bravo

AF:

0.00376

ESP6500AA

AF:

0.0116

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00103

AC:

125

Asia WGS

AF:

0.00173

AC:

AN:

3478

EpiCase

AF:

0.000109

EpiControl

AF:

0.00

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

Likely benign, no assertion criteria provided

clinical testing

Genetic Services Laboratory, University of Chicago

Nov 21, 2022

- -

Senior-Loken syndrome 4

Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Nephronophthisis

Benign:1

Benign, criteria provided, single submitter

clinical testing

Invitae

Jan 25, 2024

- -

not provided

Benign:1

Benign, criteria provided, single submitter

clinical testing

CeGaT Center for Human Genetics Tuebingen

Jan 01, 2024

NPHP4: BS1, BS2 -

Nephronophthisis 4

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.25

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.25

Cadd

Pathogenic

Dann

Pathogenic

1.0

DEOGEN2

Uncertain

0.50

Eigen

Pathogenic

0.81

Eigen_PC

Pathogenic

0.75

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.91

MetaRNN

Benign

0.0099

MetaSVM

Uncertain

0.59

MutationAssessor

Pathogenic

3.0

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.52

PROVEAN

Uncertain

-3.8

REVEL

Pathogenic

0.69

Sift

Uncertain

0.0040

Sift4G

Uncertain

0.015

Polyphen

1.0

Vest4

0.36

MVP

0.98

MPC

0.39

ClinPred

0.046

GERP RS

5.4

Varity_R

0.33

gMVP

0.49

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

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