rs746910149

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBP6

The NM_001009944.3(PKD1):​c.5453C>T​(p.Ala1818Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000561 in 1,602,868 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. A1818A) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000055 ( 0 hom. )

Consequence

PKD1
NM_001009944.3 missense

Scores

1
18

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:3

Conservation

PhyloP100: 1.40

Publications

0 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 -3 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.098484725).
BP6
Variant 16-2109714-G-A is Benign according to our data. Variant chr16-2109714-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 447988.We mark this variant Likely_benign, oryginal submission is: [Conflicting_classifications_of_pathogenicity].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PKD1NM_001009944.3 linkc.5453C>T p.Ala1818Val missense_variant Exon 15 of 46 ENST00000262304.9 NP_001009944.3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PKD1ENST00000262304.9 linkc.5453C>T p.Ala1818Val missense_variant Exon 15 of 46 1 NM_001009944.3 ENSP00000262304.4 P98161-1

Frequencies

GnomAD3 genomes
AF:
0.0000657
AC:
10
AN:
152240
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00115
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000882
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000969
AC:
22
AN:
227002
AF XY:
0.000129
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00167
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000400
Gnomad OTH exome
AF:
0.000179
GnomAD4 exome
AF:
0.0000551
AC:
80
AN:
1450628
Hom.:
0
Cov.:
34
AF XY:
0.0000666
AC XY:
48
AN XY:
720948
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33228
American (AMR)
AF:
0.00
AC:
0
AN:
43396
Ashkenazi Jewish (ASJ)
AF:
0.00108
AC:
28
AN:
25926
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39338
South Asian (SAS)
AF:
0.0000117
AC:
1
AN:
85116
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51372
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4166
European-Non Finnish (NFE)
AF:
0.0000442
AC:
49
AN:
1108278
Other (OTH)
AF:
0.0000334
AC:
2
AN:
59808
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.479
Heterozygous variant carriers
0
6
11
17
22
28
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:
0.0000657
AC:
10
AN:
152240
Hom.:
0
Cov.:
33
AF XY:
0.0000538
AC XY:
4
AN XY:
74372
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41464
American (AMR)
AF:
0.00
AC:
0
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00115
AC:
4
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5202
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000882
AC:
6
AN:
68050
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.515
Heterozygous variant carriers
0
1
2
2
3
4
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:
0.000225
Hom.:
0
Bravo
AF:
0.0000416
ExAC
AF:
0.0000584
AC:
7

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:3
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Polycystic kidney disease, adult type Uncertain:1Benign:1
Jan 01, 2019
Institute of Human Genetics, University of Leipzig Medical Center
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Aug 29, 2019
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The PKD1 c.5453C>T; p.Ala1818Val variant (rs746910149), to our knowledge, is not reported in the medical literature but is reported in ClinVar (Variation ID: 447988). This variant is found in the Ashkenazi Jewish population with an allele frequency of 0.17% (17/9844 alleles) in the Genome Aggregation Database. The alanine at codon 1818 is highly conserved, but computational analyses (SIFT, PolyPhen-2) predict that this variant is tolerated. Due to limited information, the clinical significance of the p.Ala1818Val variant is uncertain at this time. -

Inborn genetic diseases Uncertain:1
May 23, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.5453C>T (p.A1818V) alteration is located in exon 15 (coding exon 15) of the PKD1 gene. This alteration results from a C to T substitution at nucleotide position 5453, causing the alanine (A) at amino acid position 1818 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not specified Benign:1
Oct 06, 2020
Athena Diagnostics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:1
Jan 01, 2020
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.086
BayesDel_addAF
Benign
-0.23
T
BayesDel_noAF
Benign
-0.46
CADD
Benign
6.6
DANN
Benign
0.92
DEOGEN2
Benign
0.26
T;.
Eigen
Benign
-0.89
Eigen_PC
Benign
-0.97
FATHMM_MKL
Benign
0.14
N
LIST_S2
Benign
0.67
T;T
M_CAP
Uncertain
0.22
D
MetaRNN
Benign
0.098
T;T
MetaSVM
Benign
-0.94
T
MutationAssessor
Benign
1.2
L;L
PhyloP100
1.4
PrimateAI
Benign
0.44
T
PROVEAN
Benign
-1.6
N;N
REVEL
Benign
0.080
Sift
Benign
0.21
T;T
Sift4G
Benign
0.16
T;T
Polyphen
0.057
B;B
Vest4
0.15
MutPred
0.64
Gain of sheet (P = 0.0344);Gain of sheet (P = 0.0344);
MVP
0.79
ClinPred
0.021
T
GERP RS
-1.4
Varity_R
0.11
gMVP
0.39
Mutation Taster
=75/25
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: rs746910149; hg19: chr16-2159715; API