1-5874978-C-T

Variant names:

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6BP7BS1BS2

The NM_015102.5(NPHP4):c.2940G>A(p.Thr980Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000663 in 1,612,794 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00082 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00065 ( 2 hom. )

Consequence

NPHP4
NM_015102.5 synonymous

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: -5.92

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:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.83).

BP6

Variant 1-5874978-C-T is Benign according to our data. Variant chr1-5874978-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 497873.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=1}.

BP7

Synonymous conserved (PhyloP=-5.93 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000821 (125/152270) while in subpopulation AFR AF= 0.00147 (61/41558). AF 95% confidence interval is 0.00117. There are 0 homozygotes in gnomad4. There are 61 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NPHP4	NM_015102.5 link	c.2940G>A	p.Thr980Thr	synonymous_variant	Exon 21 of 30	ENST00000378156.9	NP_055917.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
NPHP4	ENST00000378156.9 link	c.2940G>A	p.Thr980Thr	synonymous_variant	Exon 21 of 30	1	NM_015102.5	ENSP00000367398.4	O75161-1
NPHP4	ENST00000378169.7 link	n.*1841G>A		non_coding_transcript_exon_variant	Exon 18 of 27	1		ENSP00000367411.3	D6RA06
NPHP4	ENST00000489180.6 link	n.*751G>A		non_coding_transcript_exon_variant	Exon 24 of 33	2		ENSP00000423747.1	O75161-2
NPHP4	ENST00000378169.7 link	n.*1841G>A		3_prime_UTR_variant	Exon 18 of 27	1		ENSP00000367411.3	D6RA06
NPHP4	ENST00000489180.6 link	n.*751G>A		3_prime_UTR_variant	Exon 24 of 33	2		ENSP00000423747.1	O75161-2

Frequencies

GnomAD3 genomes

AF:

0.000828

AC:

126

AN:

152152

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00150

Gnomad AMI

AF:

0.00219

Gnomad AMR

AF:

0.000262

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.000188

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000779

Gnomad OTH

AF:

0.000957

GnomAD3 exomes

AF:

0.000431

AC:

107

AN:

248006

Hom.:

AF XY:

0.000483

AC XY:

AN XY:

134682

show subpopulations

Gnomad AFR exome

AF:

0.000904

Gnomad AMR exome

AF:

0.000319

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000111

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000674

Gnomad OTH exome

AF:

0.000497

GnomAD4 exome

AF:

0.000646

AC:

944

AN:

1460524

Hom.:

Cov.:

AF XY:

0.000632

AC XY:

459

AN XY:

726568

show subpopulations

Gnomad4 AFR exome

AF:

0.00137

Gnomad4 AMR exome

AF:

0.000358

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.000252

Gnomad4 SAS exome

AF:

0.0000464

Gnomad4 FIN exome

AF:

0.0000191

Gnomad4 NFE exome

AF:

0.000734

Gnomad4 OTH exome

AF:

0.000679

GnomAD4 genome

AF:

0.000821

AC:

125

AN:

152270

Hom.:

Cov.:

AF XY:

0.000819

AC XY:

AN XY:

74462

show subpopulations

Gnomad4 AFR

AF:

0.00147

Gnomad4 AMR

AF:

0.000262

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.000188

Gnomad4 NFE

AF:

0.000779

Gnomad4 OTH

AF:

0.000947

Alfa

AF:

0.000568

Hom.:

Bravo

AF:

0.000778

Asia WGS

AF:

0.000577

AC:

AN:

3478

EpiCase

AF:

0.000382

EpiControl

AF:

0.000889

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:1

Apr 06, 2018

Eurofins Ntd Llc (ga)

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Oct 01, 2023

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

NPHP4: BP4, BP7 -

NPHP4-related disorder

Benign:1

Apr 17, 2019

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Nephronophthisis

Benign:1

Feb 01, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.83

CADD

Benign

0.055

DANN

Benign

0.62

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