rs142575178

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_ModerateBP6_ModerateBS1BS2

The NM_001009944.3(PKD1):​c.4872C>T​(p.Ile1624Ile) variant causes a synonymous change. The variant allele was found at a frequency of 0.000367 in 1,612,654 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0019 ( 2 hom., cov: 34)
Exomes 𝑓: 0.00021 ( 1 hom. )

Consequence

PKD1
NM_001009944.3 synonymous

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:3

Conservation

PhyloP100: 3.77

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: Benign. The variant received -12 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.46).
BP6
Variant 16-2110295-G-A is Benign according to our data. Variant chr16-2110295-G-A is described in ClinVar as Benign. ClinVar VariationId is 433964.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00189 (288/152356) while in subpopulation AFR AF = 0.00661 (275/41590). AF 95% confidence interval is 0.00597. There are 2 homozygotes in GnomAd4. There are 127 alleles in the male GnomAd4 subpopulation. Median coverage is 34. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 2 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PKD1NM_001009944.3 linkc.4872C>T p.Ile1624Ile synonymous_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.4872C>T p.Ile1624Ile synonymous_variant Exon 15 of 46 1 NM_001009944.3 ENSP00000262304.4 P98161-1

Frequencies

GnomAD3 genomes
AF:
0.00189
AC:
288
AN:
152238
Hom.:
2
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00663
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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:
0.0000441
Gnomad OTH
AF:
0.00334
GnomAD2 exomes
AF:
0.000526
AC:
131
AN:
249190
AF XY:
0.000450
show subpopulations
Gnomad AFR exome
AF:
0.00798
Gnomad AMR exome
AF:
0.0000868
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000208
AC:
304
AN:
1460298
Hom.:
1
Cov.:
36
AF XY:
0.000176
AC XY:
128
AN XY:
726438
show subpopulations
African (AFR)
AF:
0.00822
AC:
275
AN:
33470
American (AMR)
AF:
0.000179
AC:
8
AN:
44712
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86248
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52100
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5760
European-Non Finnish (NFE)
AF:
0.00000180
AC:
2
AN:
1111814
Other (OTH)
AF:
0.000298
AC:
18
AN:
60362
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.494
Heterozygous variant carriers
0
22
43
65
86
108
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.00189
AC:
288
AN:
152356
Hom.:
2
Cov.:
34
AF XY:
0.00170
AC XY:
127
AN XY:
74498
show subpopulations
African (AFR)
AF:
0.00661
AC:
275
AN:
41590
American (AMR)
AF:
0.000196
AC:
3
AN:
15306
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10630
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68026
Other (OTH)
AF:
0.00331
AC:
7
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.498
Heterozygous variant carriers
0
19
37
56
74
93
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
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
Alfa
AF:
0.00124
Hom.:
0
Bravo
AF:
0.00226
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Sep 20, 2019
Athena Diagnostics
Significance: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.Ile1624Ile variant was not identified in the literature nor was it identified in the Clinvitae, ClinVar, GeneInsight COGR, MutDB, PKD1-LOVD and PKD1-LOVD 3.0 databases nor was it identified in the NHLBI GO Exome Sequencing Project. The variant was identified in the ADPKD Mutation Database as likely neutral. The variant was also identified in dbSNP (ID: rs142575178) as “NA”, in the 1000 Genomes Project in 14 of 500 chromosomes (frequency: 0.028), in the Exome Aggregation Consortium database (August 8, 2016) in 77 of 118592 chromosomes (frequency: 0.0006) in the following populations: African in 76 of 9904 chromosomes (frequency: 0.008) and European (Non-Finnish) in 1 of 61652 chromosomes (frequency: 0.00002), but was not seen in East Asian, European (Finnish), Latino and South Asian populations. In addition we cannot be certain that data from control databases is specific to PKD1 and not from one of the six PKD1 pseudogenes. The p.Ile1624Ile 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. In summary, based on the above information, this variant meets our laboratory criteria to be classified as benign. -

PKD1-related disorder Benign:1
Dec 16, 2019
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as 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
BayesDel_noAF
Benign
-0.46
CADD
Benign
5.1
DANN
Benign
0.81
PhyloP100
3.8
Mutation Taster
=100/0
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: rs142575178; hg19: chr16-2160296; API