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GeneBe

rs35264155

chr1-5907184-C-T

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_015102.5(NPHP4):c.1542G>A(p.Pro514=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00114 in 1,588,102 control chromosomes in the GnomAD database, including 13 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0062 ( 8 hom., cov: 33)
Exomes 𝑓: 0.00059 ( 5 hom. )

Consequence

NPHP4
NM_015102.5 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: -3.86
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
?
    BP4 - Multiple lines of computational evidence suggest no impact on gene or gene product (conservation, evolutionary, splicing impact, etc.)
Computational evidence support a benign effect (BayesDel_noAF=-0.75).
BP6
?
    BP6 - Reputable source recently reports variant as benign, but the evidence is not available to the laboratory to perform an independent evaluation
Variant 1-5907184-C-T is Benign according to our data. Variant chr1-5907184-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 219984.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-5907184-C-T is described in Lovd as [Benign].
BP7
?
    BP7 - A synonymous (silent) variant for which splicing prediction algorithms predict no impact to the splice consensus sequence nor the creation of a new splice site AND the nucleotide is not highly conserved
Synonymous conserved (PhyloP=-3.86 with no splicing effect.
BS1
?
    BS1 - Allele frequency is greater than expected for disorder
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00624 (951/152316) while in subpopulation AFR AF= 0.022 (916/41566). AF 95% confidence interval is 0.0209. There are 8 homozygotes in gnomad4. There are 465 alleles in male gnomad4 subpopulation. This position pass quality control queck.
BS2
?
    BS2 - Observed in a healthy adult individual for a recessive (homozygous), dominant (heterozygous), or X-linked (hemizygous) disorder, with full penetrance expected at an early age
High Homozygotes in GnomAd at 8 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
NPHP4NM_015102.5 linkuse as main transcriptc.1542G>A p.Pro514= synonymous_variant 13/30 ENST00000378156.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
NPHP4ENST00000378156.9 linkuse as main transcriptc.1542G>A p.Pro514= synonymous_variant 13/301 NM_015102.5 P2O75161-1

Frequencies

GnomAD3 genomes
?
    Genome Aggregation Database, over 76,156 genomes
AF:
0.00623
AC:
948
AN:
152198
Hom.:
8
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0221
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00164
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:
0.0000441
Gnomad OTH
AF:
0.00287
GnomAD3 exomes
AF:
0.00133
AC:
278
AN:
209512
Hom.:
2
AF XY:
0.000908
AC XY:
103
AN XY:
113490
show subpopulations
Gnomad AFR exome
AF:
0.0203
Gnomad AMR exome
AF:
0.000872
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000538
Gnomad OTH exome
AF:
0.000191
GnomAD4 exome
AF:
0.000593
AC:
852
AN:
1435786
Hom.:
5
Cov.:
30
AF XY:
0.000487
AC XY:
347
AN XY:
712062
show subpopulations
Gnomad4 AFR exome
AF:
0.0211
Gnomad4 AMR exome
AF:
0.000965
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000523
Gnomad4 SAS exome
AF:
0.0000245
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000419
Gnomad4 OTH exome
AF:
0.00113
GnomAD4 genome
?
    Genome Aggregation Database, over 76,156 genomes
AF:
0.00624
AC:
951
AN:
152316
Hom.:
8
Cov.:
33
AF XY:
0.00624
AC XY:
465
AN XY:
74480
show subpopulations
Gnomad4 AFR
AF:
0.0220
Gnomad4 AMR
AF:
0.00170
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00284
Alfa
AF:
0.00333
Hom.:
3
Bravo
AF:
0.00671
Asia WGS
AF:
0.00115
AC:
4
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Benign, no assertion criteria providedclinical testingClinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center-- -
Benign, no assertion criteria providedclinical testingClinical Genetics, Academic Medical Center-- -
Senior-Loken syndrome 4 Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 12, 2018This 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. -
Senior-Loken syndrome 4;C1847013:Nephronophthisis 4 Benign:1
Likely benign, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsJul 13, 2021- -
Nephronophthisis Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeJan 31, 2024- -
Nephronophthisis 4 Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 12, 2018This 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.75
Cadd
Benign
0.080
Dann
Benign
0.46
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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.

Other links and lift over

dbSNP: rs35264155; hg19: chr1-5967244; COSMIC: COSV65396017; COSMIC: COSV65396017; API