rs374486955

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_001009944.3(PKD1):​c.10315C>T​(p.Arg3439Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000721 in 1,609,660 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R3439Q) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000067 ( 0 hom. )

Consequence

PKD1
NM_001009944.3 missense

Scores

2
5
12

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3B:1

Conservation

PhyloP100: 0.469

Publications

3 publications found
Variant links:
Genes affected
PKD1 (HGNC:9008): (polycystin 1, transient receptor potential channel interacting) This gene encodes a member of the polycystin protein family. The encoded glycoprotein contains a large N-terminal extracellular region, multiple transmembrane domains and a cytoplasmic C-tail. It is an integral membrane protein that functions as a regulator of calcium permeable cation channels and intracellular calcium homoeostasis. It is also involved in cell-cell/matrix interactions and may modulate G-protein-coupled signal-transduction pathways. It plays a role in renal tubular development, and mutations in this gene cause autosomal dominant polycystic kidney disease type 1 (ADPKD1). ADPKD1 is characterized by the growth of fluid-filled cysts that replace normal renal tissue and result in end-stage renal failure. Splice variants encoding different isoforms have been noted for this gene. Also, six pseudogenes, closely linked in a known duplicated region on chromosome 16p, have been described. [provided by RefSeq, Oct 2008]
PKD1 Gene-Disease associations (from GenCC):
  • autosomal dominant polycystic kidney disease
    Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
  • polycystic kidney disease 1
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Laboratory for Molecular Medicine, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
  • autosomal recessive polycystic kidney disease
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • Caroli disease
    Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.07063198).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PKD1NM_001009944.3 linkc.10315C>T p.Arg3439Trp missense_variant Exon 33 of 46 ENST00000262304.9 NP_001009944.3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PKD1ENST00000262304.9 linkc.10315C>T p.Arg3439Trp missense_variant Exon 33 of 46 1 NM_001009944.3 ENSP00000262304.4 P98161-1
PKD1ENST00000423118.5 linkc.10312C>T p.Arg3438Trp missense_variant Exon 33 of 46 1 ENSP00000399501.1 P98161-3
PKD1ENST00000487932.5 linkn.*1508C>T non_coding_transcript_exon_variant Exon 20 of 30 5 ENSP00000457132.1 H3BTE0
PKD1ENST00000487932.5 linkn.*1508C>T 3_prime_UTR_variant Exon 20 of 30 5 ENSP00000457132.1 H3BTE0

Frequencies

GnomAD3 genomes
AF:
0.000118
AC:
18
AN:
152224
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000193
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000963
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000188
AC:
46
AN:
244164
AF XY:
0.000240
show subpopulations
Gnomad AFR exome
AF:
0.0000645
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00193
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000541
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000672
AC:
98
AN:
1457436
Hom.:
0
Cov.:
33
AF XY:
0.0000731
AC XY:
53
AN XY:
725214
show subpopulations
African (AFR)
AF:
0.000119
AC:
4
AN:
33478
American (AMR)
AF:
0.00
AC:
0
AN:
44688
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26106
East Asian (EAS)
AF:
0.000504
AC:
20
AN:
39696
South Asian (SAS)
AF:
0.000151
AC:
13
AN:
86226
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49278
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5752
European-Non Finnish (NFE)
AF:
0.0000450
AC:
50
AN:
1111880
Other (OTH)
AF:
0.000182
AC:
11
AN:
60332
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.511
Heterozygous variant carriers
0
7
15
22
30
37
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000118
AC:
18
AN:
152224
Hom.:
0
Cov.:
33
AF XY:
0.000108
AC XY:
8
AN XY:
74374
show subpopulations
African (AFR)
AF:
0.000193
AC:
8
AN:
41466
American (AMR)
AF:
0.00
AC:
0
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.000963
AC:
5
AN:
5194
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4838
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
68020
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000868
Hom.:
0
Bravo
AF:
0.000147
ESP6500AA
AF:
0.000228
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000182
AC:
22
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000119

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3Benign:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:2
Sep 13, 2022
Clinical Genetics Laboratory, Skane University Hospital Lund
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Mar 20, 2020
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Observed heterozygous with R2477H on the opposite allele (in trans) in two Taiwanese siblings with mild polycystic kidney disease; however, parents and siblings who harbor either R3439W or R2477H are asymptomatic and authors suggest R3439W may be a hypomorphic allele (Chang et al., 2013); This variant is associated with the following publications: (PMID: 23985799) -

not specified Uncertain:1
Mar 28, 2016
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Variant identified in a genome or exome case(s) and assessed due to predicted null impact of the variant or pathogenic assertions in the literature or databases. Disclaimer: This variant has not undergone full assessment. The following are preliminary notes: Homozygous null mice develop hydrops fetalis, but this is a heterozygous missense variant and still explains little of the phenotype. ExAC: 0.2% (13/8388) East Asian chromosomes. -

PKD1-related disorder Benign:1
Aug 23, 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). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.081
BayesDel_addAF
Benign
-0.46
T
BayesDel_noAF
Benign
-0.43
CADD
Benign
20
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.74
D;.
Eigen
Benign
-0.29
Eigen_PC
Benign
-0.55
FATHMM_MKL
Benign
0.14
N
LIST_S2
Benign
0.57
T;T
M_CAP
Pathogenic
0.36
D
MetaRNN
Benign
0.071
T;T
MetaSVM
Benign
-0.94
T
MutationAssessor
Uncertain
2.6
M;.
PhyloP100
0.47
PrimateAI
Benign
0.24
T
PROVEAN
Uncertain
-4.4
D;D
REVEL
Benign
0.068
Sift
Uncertain
0.0010
D;D
Sift4G
Pathogenic
0.0010
D;D
Polyphen
1.0
D;D
Vest4
0.34
MVP
0.62
ClinPred
0.18
T
GERP RS
0.0030
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.13
gMVP
0.50
Mutation Taster
=53/47
polymorphism

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

Other links and lift over

dbSNP: rs374486955; hg19: chr16-2147410; COSMIC: COSV51925347; COSMIC: COSV51925347; API