Genetic Variant PKD1L1:p.Asp2797Glu (chr7-47792762-G-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_138295.5(PKD1L1):c.8391C>A(p.Asp2797Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000136 in 1,613,784 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000075 ( 0 hom. )

Consequence

PKD1L1
NM_138295.5 missense

Scores

Clinical Significance

Uncertain significance no assertion criteria provided U:1

Conservation

PhyloP100: 0.0260

Variant links:

Genes affected

PKD1L1 (HGNC:18053): (polycystin 1 like 1, transient receptor potential channel interacting) This gene encodes a member of the polycystin protein family containing 11 transmembrane domains, a receptor for egg jelly (REJ) domain, and a polycystin-1, lipoxygenase, alpha-toxin (PLAT) domain. The encoded protein may play a role in the male reproductive system. Alternative splice variants have been described but their biological nature has not been determined. [provided by RefSeq, Jul 2008]

PKD1L1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.06627542).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PKD1L1	NM_138295.5 link	c.8391C>A	p.Asp2797Glu	missense_variant	Exon 56 of 57	ENST00000289672.7	NP_612152.1
PKD1L1	XM_017011798.3 link	c.8568C>A	p.Asp2856Glu	missense_variant	Exon 57 of 59		XP_016867287.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PKD1L1	ENST00000289672.7 link	c.8391C>A	p.Asp2797Glu	missense_variant	Exon 56 of 57	1	NM_138295.5	ENSP00000289672.2		Q8TDX9-1

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152116

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000199

AC:

AN:

250788

Hom.:

AF XY:

0.0000295

AC XY:

AN XY:

135542

show subpopulations

Gnomad AFR exome

AF:

0.000308

Gnomad AMR exome

AF:

0.00

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000753

AC:

AN:

1461552

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727056

show subpopulations

Gnomad4 AFR exome

AF:

0.0000896

Gnomad4 AMR exome

AF:

0.0000448

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.0000828

GnomAD4 genome

AF:

0.0000723

AC:

AN:

152232

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74442

show subpopulations

Gnomad4 AFR

AF:

0.000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000982

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

PKD1L1-related disorder

Uncertain:1

Sep 25, 2024

PreventionGenetics, part of Exact Sciences

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

The PKD1L1 c.8391C>A variant is predicted to result in the amino acid substitution p.Asp2797Glu. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.032% of alleles in individuals of African descent in gnomAD. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.52

BayesDel_addAF

Benign

-0.49

BayesDel_noAF

Benign

-0.63

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.28

Eigen

Benign

-0.24

Eigen_PC

Benign

-0.22

FATHMM_MKL

Benign

0.61

LIST_S2

Benign

0.47

M_CAP

Benign

0.0080

MetaRNN

Benign

0.066

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.97

PrimateAI

Benign

0.34

PROVEAN

Uncertain

-2.9

REVEL

Benign

0.084

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

0.97

Vest4

0.33

MutPred

0.37

Gain of ubiquitination at K2802 (P = 0.102);

MVP

0.51

MPC

0.33

ClinPred

0.63

GERP RS

1.1

Varity_R

0.29

gMVP

0.34

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