16-2103467-C-T

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 0P and 3B. BP4_ModerateBS2_Supporting

The NM_001009944.3(PKD1):c.8590G>A(p.Glu2864Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000581 in 1,600,604 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000098 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000054 ( 0 hom. )

Consequence

PKD1
NM_001009944.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 1.52

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.1642479).

BS2

High AC in GnomAd4 at 15 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PKD1	NM_001009944.3 link	c.8590G>A	p.Glu2864Lys	missense_variant	Exon 23 of 46	ENST00000262304.9	NP_001009944.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PKD1	ENST00000262304.9 link	c.8590G>A	p.Glu2864Lys	missense_variant	Exon 23 of 46	1	NM_001009944.3	ENSP00000262304.4		P98161-1

Frequencies

GnomAD3 genomes

AF:

0.0000985

AC:

AN:

152222

Hom.:

Cov.:

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:

0.000386

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

GnomAD3 exomes

AF:

0.0000895

AC:

AN:

234554

Hom.:

AF XY:

0.000100

AC XY:

AN XY:

129776

show subpopulations

Gnomad AFR exome

AF:

0.000353

Gnomad AMR exome

AF:

0.0000290

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000558

Gnomad SAS exome

AF:

0.000229

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000648

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000539

AC:

AN:

1448264

Hom.:

Cov.:

AF XY:

0.0000527

AC XY:

AN XY:

720978

show subpopulations

Gnomad4 AFR exome

AF:

0.0000898

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.0000766

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.000163

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000477

Gnomad4 OTH exome

AF:

0.0000665

GnomAD4 genome

AF:

0.0000985

AC:

AN:

152340

Hom.:

Cov.:

AF XY:

0.000134

AC XY:

AN XY:

74482

show subpopulations

Gnomad4 AFR

AF:

0.000192

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000386

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000927

Hom.:

Bravo

AF:

0.0000756

ESP6500AA

AF:

0.000246

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000127

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.000237

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 25, 2016

Department of Pathology and Laboratory Medicine, Sinai Health System

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Polycystic kidney disease, adult type

Uncertain:1

Jan 25, 2022

Fulgent Genetics, Fulgent Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Inborn genetic diseases

Uncertain:1

Dec 28, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.8590G>A (p.E2864K) alteration is located in exon 23 (coding exon 23) of the PKD1 gene. This alteration results from a G to A substitution at nucleotide position 8590, causing the glutamic acid (E) at amino acid position 2864 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

PKD1-related disorder

Uncertain:1

Oct 13, 2023

PreventionGenetics, part of Exact Sciences

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The PKD1 c.8590G>A variant is predicted to result in the amino acid substitution p.Glu2864Lys. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.031% of alleles in individuals of African descent in gnomAD (http://gnomad.broadinstitute.org/variant/16-2153468-C-T), which may be too common to be a primary cause of disease. Although we suspect this variant may be benign, at this time, the clinical significance is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.090

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.42

CADD

Benign

DANN

Benign

0.95

DEOGEN2

Benign

0.17

T;.

Eigen

Benign

-0.55

Eigen_PC

Benign

-0.65

FATHMM_MKL

Benign

0.28

LIST_S2

Uncertain

0.91

D;D

M_CAP

Uncertain

0.28

MetaRNN

Benign

0.16

T;T

MetaSVM

Benign

-0.85

MutationAssessor

Uncertain

2.3

M;M

PrimateAI

Benign

0.41

PROVEAN

Benign

-0.62

N;N

REVEL

Benign

0.15

Sift

Benign

0.78

T;T

Sift4G

Benign

0.54

T;T

Polyphen

0.89

P;D

Vest4

0.27

MVP

0.78

ClinPred

0.023

GERP RS

1.6

Varity_R

0.022

gMVP

0.48

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over