rs148727945

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_001009944.3(PKD1):​c.3183G>A​(p.Glu1061Glu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0027 in 1,588,386 control chromosomes in the GnomAD database, including 13 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0016 ( 1 hom., cov: 33)
Exomes 𝑓: 0.0028 ( 12 hom. )

Consequence

PKD1
NM_001009944.3 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:9

Conservation

PhyloP100: -0.407
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.76).
BP6
Variant 16-2112452-C-T is Benign according to our data. Variant chr16-2112452-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 256945.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr16-2112452-C-T is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=-0.407 with no splicing effect.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.0016 (244/152322) while in subpopulation NFE AF= 0.00268 (182/68012). AF 95% confidence interval is 0.00236. There are 1 homozygotes in gnomad4. There are 109 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High AC in GnomAd4 at 244 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PKD1NM_001009944.3 linkc.3183G>A p.Glu1061Glu synonymous_variant Exon 14 of 46 ENST00000262304.9 NP_001009944.3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PKD1ENST00000262304.9 linkc.3183G>A p.Glu1061Glu synonymous_variant Exon 14 of 46 1 NM_001009944.3 ENSP00000262304.4 P98161-1

Frequencies

GnomAD3 genomes
AF:
0.00160
AC:
244
AN:
152204
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000676
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00111
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000753
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00268
Gnomad OTH
AF:
0.00382
GnomAD3 exomes
AF:
0.00153
AC:
291
AN:
190260
Hom.:
1
AF XY:
0.00152
AC XY:
159
AN XY:
104800
show subpopulations
Gnomad AFR exome
AF:
0.000403
Gnomad AMR exome
AF:
0.00159
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00263
Gnomad OTH exome
AF:
0.00236
GnomAD4 exome
AF:
0.00282
AC:
4048
AN:
1436064
Hom.:
12
Cov.:
32
AF XY:
0.00268
AC XY:
1911
AN XY:
714122
show subpopulations
Gnomad4 AFR exome
AF:
0.000603
Gnomad4 AMR exome
AF:
0.00146
Gnomad4 ASJ exome
AF:
0.0000386
Gnomad4 EAS exome
AF:
0.000101
Gnomad4 SAS exome
AF:
0.0000235
Gnomad4 FIN exome
AF:
0.000430
Gnomad4 NFE exome
AF:
0.00339
Gnomad4 OTH exome
AF:
0.00301
GnomAD4 genome
AF:
0.00160
AC:
244
AN:
152322
Hom.:
1
Cov.:
33
AF XY:
0.00146
AC XY:
109
AN XY:
74484
show subpopulations
Gnomad4 AFR
AF:
0.000674
Gnomad4 AMR
AF:
0.00111
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000753
Gnomad4 NFE
AF:
0.00268
Gnomad4 OTH
AF:
0.00378
Alfa
AF:
0.00226
Hom.:
0
Bravo
AF:
0.00167

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:9
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:5
Oct 22, 2020
GeneDx
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Jan 24, 2019
Athena Diagnostics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
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

- -

Nov 01, 2024
CeGaT Center for Human Genetics Tuebingen
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

PKD1: BP4, BP7, BS2 -

Polycystic kidney disease, adult type Benign:2
Jul 23, 2021
Fulgent Genetics, Fulgent Genetics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Feb 26, 2020
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Benign:1
-
PreventionGenetics, part of Exact Sciences
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Polycystic kidney disease Benign:1
-
Department of Pathology and Laboratory Medicine, Sinai Health System
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

The PKD1 p.Glu1061Glu variant was identified in 1 of 164 proband chromosomes (frequency: 0.006) from individuals or families with clinical features of polycystic renal disease (Garcia-Gonzalez 2007). The variant was also identified in dbSNP (ID: rs148727945) as “NA”, in the ADPKD Mutation Database (classification “likely neutral”), but was not in Clinvitae, ClinVar , GeneInsight COGR, PKD1-LOVD, and PKD1-LOVD 3.0. This variant was identified in the 1000 Genomes Project in 5 of 5000 chromosomes (frequency: 0.001), HAPMAP-EUR in 5 of 1006 chromosomes (frequency: 0.005), NHLBI GO Exome Sequencing Project in 10 of 4570 European American alleles and in 2 of 2590 African American alleles, and in the Exome Aggregation Consortium database (March 14, 2016) in 84 of 43768 alleles, specifically in 68 of 22746 alleles (1 homozygous, frequency: 0.0030) from a population of European (Non-Finnish) individuals, in 14 of 3386 alleles (frequency: 0.0041) from a Latino population, and in 2 of 2432 alleles (frequency: 0.0008) from an African population. The variant was not seen in East Asian, South Asian, or European (Finnish) populations. The p.Glu1061Glu variant is not expected to have clinical significance because it does not result in a change of amino acid and is not located in a known consensus splice site. In addition, in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer, HumanSpliceFinder) do not predict a difference in splicing. This variant was identified in our laboratory in one individual with ADPKD and a co-occurring pathogenic variant in PKD1 (c.160_166dup, p.Leu56ProfsX60), increasing the likelihood this variant does not have clinical significance. In summary, based on the above information, this variant meets our laboratory criteria to be classified as benign. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.76
CADD
Benign
4.9
DANN
Benign
0.74

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: rs148727945; hg19: chr16-2162453; API