rs763213387

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001009944.3(PKD1):​c.1894A>G​(p.Asn632Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000627 in 1,594,780 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict 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. N632S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000042 ( 0 hom. )

Consequence

PKD1
NM_001009944.3 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 1.82

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 -4 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.06708497).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PKD1NM_001009944.3 linkc.1894A>G p.Asn632Asp missense_variant Exon 10 of 46 ENST00000262304.9 NP_001009944.3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PKD1ENST00000262304.9 linkc.1894A>G p.Asn632Asp missense_variant Exon 10 of 46 1 NM_001009944.3 ENSP00000262304.4 P98161-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152056
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000416
AC:
6
AN:
1442606
Hom.:
0
Cov.:
32
AF XY:
0.00000279
AC XY:
2
AN XY:
717348
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0000615
AC:
2
AN:
32524
American (AMR)
AF:
0.0000457
AC:
2
AN:
43806
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25816
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39456
South Asian (SAS)
AF:
0.00
AC:
0
AN:
84856
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50384
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4114
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1102124
Other (OTH)
AF:
0.0000336
AC:
2
AN:
59526
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.00000105072), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.375
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152174
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74404
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0000722
AC:
3
AN:
41532
American (AMR)
AF:
0.0000654
AC:
1
AN:
15296
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5150
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67966
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.00359700), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.363
Heterozygous variant carriers
0
1
1
2
2
3
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:
0.00
Hom.:
0
Bravo
AF:
0.0000340

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Polycystic kidney disease, adult type Uncertain:1
Apr 20, 2024
Fulgent Genetics, Fulgent Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Uncertain:1
Oct 11, 2017
Athena Diagnostics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.20
T
BayesDel_noAF
Benign
-0.53
CADD
Benign
8.1
DANN
Benign
0.72
DEOGEN2
Benign
0.18
T;.
Eigen
Benign
-0.72
Eigen_PC
Benign
-0.71
FATHMM_MKL
Benign
0.12
N
LIST_S2
Benign
0.48
T;T
M_CAP
Uncertain
0.10
D
MetaRNN
Benign
0.067
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.1
M;M
PhyloP100
1.8
PrimateAI
Benign
0.37
T
PROVEAN
Benign
-0.95
N;N
REVEL
Benign
0.082
Sift
Benign
0.62
T;T
Sift4G
Benign
0.36
T;T
Polyphen
0.0070
B;B
Vest4
0.19
MutPred
0.12
Loss of catalytic residue at N632 (P = 0.1159);Loss of catalytic residue at N632 (P = 0.1159);
MVP
0.57
ClinPred
0.070
T
GERP RS
4.9
Varity_R
0.10
gMVP
0.34
Mutation Taster
=74/26
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: rs763213387; hg19: chr16-2165582; API