rs116174472

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_ModerateBP6BP7BS1BS2

The NM_153240.5(NPHP3):​c.2769C>T​(p.Phe923=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000833 in 1,614,050 control chromosomes in the GnomAD database, including 3 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 0.00063 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00085 ( 3 hom. )

Consequence

NPHP3
NM_153240.5 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:6

Conservation

PhyloP100: 1.78
Variant links:
Genes affected
NPHP3 (HGNC:7907): (nephrocystin 3) This gene encodes a protein containing a coiled-coil (CC) domain, a tubulin-tyrosine ligase (TTL) domain, and a tetratrico peptide repeat (TPR) domain. The encoded protein interacts with nephrocystin, it is required for normal ciliary development, and it functions in renal tubular development. Mutations in this gene are associated with nephronophthisis type 3, and also with renal-hepatic-pancreatic dysplasia, and Meckel syndrome type 7. Naturally occurring read-through transcripts exist between this gene and the downstream ACAD11 (acyl-CoA dehydrogenase family, member 11) gene. [provided by RefSeq, Feb 2011]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.45).
BP6
Variant 3-132689188-G-A is Benign according to our data. Variant chr3-132689188-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 289555.We mark this variant Likely_benign, oryginal submissions are: {Benign=1, Likely_benign=3, Uncertain_significance=3}. Variant chr3-132689188-G-A is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=1.78 with no splicing effect.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000631 (96/152230) while in subpopulation NFE AF= 0.00109 (74/68024). AF 95% confidence interval is 0.000888. There are 0 homozygotes in gnomad4. There are 43 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome4 at 3 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
NPHP3NM_153240.5 linkuse as main transcriptc.2769C>T p.Phe923= synonymous_variant 20/27 ENST00000337331.10
NPHP3-ACAD11NR_037804.1 linkuse as main transcriptn.2775C>T non_coding_transcript_exon_variant 19/45

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
NPHP3ENST00000337331.10 linkuse as main transcriptc.2769C>T p.Phe923= synonymous_variant 20/271 NM_153240.5 P1Q7Z494-1

Frequencies

GnomAD3 genomes
AF:
0.000631
AC:
96
AN:
152112
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000983
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00109
Gnomad OTH
AF:
0.00143
GnomAD3 exomes
AF:
0.000815
AC:
205
AN:
251406
Hom.:
0
AF XY:
0.000736
AC XY:
100
AN XY:
135872
show subpopulations
Gnomad AFR exome
AF:
0.000185
Gnomad AMR exome
AF:
0.00185
Gnomad ASJ exome
AF:
0.0000992
Gnomad EAS exome
AF:
0.000217
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00107
Gnomad OTH exome
AF:
0.00147
GnomAD4 exome
AF:
0.000854
AC:
1248
AN:
1461820
Hom.:
3
Cov.:
32
AF XY:
0.000843
AC XY:
613
AN XY:
727214
show subpopulations
Gnomad4 AFR exome
AF:
0.000149
Gnomad4 AMR exome
AF:
0.00186
Gnomad4 ASJ exome
AF:
0.000230
Gnomad4 EAS exome
AF:
0.000101
Gnomad4 SAS exome
AF:
0.0000696
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.000985
Gnomad4 OTH exome
AF:
0.000679
GnomAD4 genome
AF:
0.000631
AC:
96
AN:
152230
Hom.:
0
Cov.:
32
AF XY:
0.000578
AC XY:
43
AN XY:
74442
show subpopulations
Gnomad4 AFR
AF:
0.0000722
Gnomad4 AMR
AF:
0.000981
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00109
Gnomad4 OTH
AF:
0.00142
Alfa
AF:
0.000622
Hom.:
0
Bravo
AF:
0.000710
EpiCase
AF:
0.00169
EpiControl
AF:
0.00142

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:3Benign:6
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Benign:3
Likely benign, no assertion criteria providedclinical testingClinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center-- -
Likely benign, criteria provided, single submitterclinical testingGeneDxAug 04, 2020- -
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenJun 01, 2022NPHP3: BP4, BP7 -
not specified Benign:2
Likely benign, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Jul 15, 2016- -
Benign, no assertion criteria providedclinical testingGenome Diagnostics Laboratory, University Medical Center Utrecht-- -
Renal-hepatic-pancreatic dysplasia 1 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -
NPHP3-related Meckel-like syndrome Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -
Nephronophthisis 3 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -
Nephronophthisis Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeJan 29, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.45
CADD
Benign
9.9
DANN
Benign
0.64

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs116174472; hg19: chr3-132408032; COSMIC: COSV58634434; COSMIC: COSV58634434; API