rs142663818

Variant summary

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

The NM_153240.5(NPHP3):​c.449C>T​(p.Ala150Val) variant causes a missense change. The variant allele was found at a frequency of 0.00094 in 1,599,856 control chromosomes in the GnomAD database, including 14 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. A150A) has been classified as Benign.

Frequency

Genomes: 𝑓 0.0014 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00090 ( 14 hom. )

Consequence

NPHP3
NM_153240.5 missense

Scores

4
8
6

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:10

Conservation

PhyloP100: 6.74
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]
NPHP3-ACAD11 (HGNC:48351): (NPHP3-ACAD11 readthrough (NMD candidate)) This locus represents naturally occurring read-through transcription between the neighboring NPHP3 (nephronophthisis 3, adolescent) and ACAD11 (acyl-CoA dehydrogenase family, member 11) genes on chromosome 3. The read-through transcript is a candidate for nonsense-mediated mRNA decay (NMD), and is thus unlikely to produce a protein product. [provided by RefSeq, Feb 2011]

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=0.010195643).
BP6
Variant 3-132719775-G-A is Benign according to our data. Variant chr3-132719775-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 241998.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr3-132719775-G-A is described in Lovd as [Likely_benign]. Variant chr3-132719775-G-A is described in Lovd as [Likely_pathogenic].
BS1
Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.00136 (207/151676) while in subpopulation EAS AF= 0.0186 (96/5162). AF 95% confidence interval is 0.0156. There are 0 homozygotes in gnomad4. There are 111 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome4 at 14 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NPHP3NM_153240.5 linkc.449C>T p.Ala150Val missense_variant Exon 2 of 27 ENST00000337331.10 NP_694972.3 Q7Z494-1
NPHP3-ACAD11NR_037804.1 linkn.553C>T non_coding_transcript_exon_variant Exon 2 of 45

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NPHP3ENST00000337331.10 linkc.449C>T p.Ala150Val missense_variant Exon 2 of 27 1 NM_153240.5 ENSP00000338766.5 Q7Z494-1

Frequencies

GnomAD3 genomes
AF:
0.00137
AC:
208
AN:
151566
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00216
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.0186
Gnomad SAS
AF:
0.00166
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000133
Gnomad OTH
AF:
0.00192
GnomAD3 exomes
AF:
0.00170
AC:
423
AN:
249394
Hom.:
4
AF XY:
0.00162
AC XY:
218
AN XY:
134846
show subpopulations
Gnomad AFR exome
AF:
0.00210
Gnomad AMR exome
AF:
0.000147
Gnomad ASJ exome
AF:
0.000895
Gnomad EAS exome
AF:
0.0188
Gnomad SAS exome
AF:
0.000758
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000620
Gnomad OTH exome
AF:
0.000659
GnomAD4 exome
AF:
0.000896
AC:
1297
AN:
1448180
Hom.:
14
Cov.:
28
AF XY:
0.000911
AC XY:
656
AN XY:
720470
show subpopulations
Gnomad4 AFR exome
AF:
0.00252
Gnomad4 AMR exome
AF:
0.000181
Gnomad4 ASJ exome
AF:
0.00120
Gnomad4 EAS exome
AF:
0.0224
Gnomad4 SAS exome
AF:
0.00121
Gnomad4 FIN exome
AF:
0.0000190
Gnomad4 NFE exome
AF:
0.0000825
Gnomad4 OTH exome
AF:
0.00166
GnomAD4 genome
AF:
0.00136
AC:
207
AN:
151676
Hom.:
0
Cov.:
32
AF XY:
0.00150
AC XY:
111
AN XY:
74140
show subpopulations
Gnomad4 AFR
AF:
0.00215
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.0186
Gnomad4 SAS
AF:
0.00145
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000133
Gnomad4 OTH
AF:
0.00190
Alfa
AF:
0.00105
Hom.:
1
Bravo
AF:
0.00177
ESP6500AA
AF:
0.00227
AC:
10
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.00177
AC:
215
Asia WGS
AF:
0.00927
AC:
33
AN:
3468

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:10
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
-
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

-
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

not specified Benign:2
Aug 16, 2017
GeneDx
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

-
Clinical Genetics, Academic Medical Center
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Renal-hepatic-pancreatic dysplasia 1 Benign:1
Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases was too high to be consistent with this variant causing disease. Therefore, this variant is classified as benign. -

Kidney disorder Benign:1
Dec 01, 2017
Genome Diagnostics Laboratory, The Hospital for Sick Children
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

NPHP3-related Meckel-like syndrome Benign:1
Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

Nephronophthisis Benign:1
Jan 24, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Nephronophthisis 3 Benign:1
Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases was too high to be consistent with this variant causing disease. Therefore, this variant is classified as benign. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.33
BayesDel_addAF
Benign
-0.11
T
BayesDel_noAF
Uncertain
0.090
CADD
Pathogenic
27
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.45
T
Eigen
Uncertain
0.66
Eigen_PC
Pathogenic
0.69
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Uncertain
0.95
D
MetaRNN
Benign
0.010
T
MetaSVM
Uncertain
0.60
D
MutationAssessor
Benign
0.81
L
PrimateAI
Pathogenic
0.85
D
PROVEAN
Benign
-0.97
N
REVEL
Uncertain
0.48
Sift
Uncertain
0.0040
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.72
MVP
0.94
MPC
0.51
ClinPred
0.018
T
GERP RS
5.5
Varity_R
0.33
gMVP
0.29

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.

Other links and lift over

dbSNP: rs142663818; hg19: chr3-132438619; API