chr6-51619506-C-T

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The NM_138694.4(PKHD1):c.11800G>A(p.Val3934Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000876 in 1,613,928 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00056 ( 1 hom., cov: 33)

Exomes 𝑓: 0.00091 ( 0 hom. )

Consequence

PKHD1
NM_138694.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:5

Conservation

PhyloP100: 0.414

Variant links:

Genes affected

PKHD1 (HGNC:9016): (PKHD1 ciliary IPT domain containing fibrocystin/polyductin) The protein encoded by this gene is predicted to have a single transmembrane (TM)-spanning domain and multiple copies of an immunoglobulin-like plexin-transcription-factor domain. Alternative splicing results in two transcript variants encoding different isoforms. Other alternatively spliced transcripts have been described, but the full length sequences have not been determined. Several of these transcripts are predicted to encode truncated products which lack the TM and may be secreted. Mutations in this gene cause autosomal recessive polycystic kidney disease, also known as polycystic kidney and hepatic disease-1. [provided by RefSeq, Jul 2008]

PKHD1 links:

ENSG00000228689 (HGNC:):

ENSG00000228689 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.0139741).

BP6

Variant 6-51619506-C-T is Benign according to our data. Variant chr6-51619506-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 289543.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Benign=1, Uncertain_significance=2}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PKHD1	NM_138694.4 link	c.11800G>A	p.Val3934Ile	missense_variant	Exon 67 of 67	ENST00000371117.8	NP_619639.3	P08F94-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
PKHD1	ENST00000371117.8 link	c.11800G>A	p.Val3934Ile	missense_variant	Exon 67 of 67	1	NM_138694.4	ENSP00000360158.3	P08F94-1
ENSG00000228689	ENST00000454361.1 link	n.81-2849C>T		intron_variant	Intron 1 of 1	3
ENSG00000228689	ENST00000589278.6 link	n.811-2854C>T		intron_variant	Intron 2 of 2	5
ENSG00000228689	ENST00000650088.1 link	n.222-2849C>T		intron_variant	Intron 1 of 1

Frequencies

GnomAD3 genomes

AF:

0.000559

AC:

AN:

152178

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000966

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000188

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00100

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000459

AC:

115

AN:

250640

Hom.:

AF XY:

0.000480

AC XY:

AN XY:

135492

show subpopulations

Gnomad AFR exome

AF:

0.000247

Gnomad AMR exome

AF:

0.000347

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:

0.000849

Gnomad OTH exome

AF:

0.000491

GnomAD4 exome

AF:

0.000909

AC:

1329

AN:

1461632

Hom.:

Cov.:

AF XY:

0.000890

AC XY:

647

AN XY:

727156

show subpopulations

Gnomad4 AFR exome

AF:

0.000269

Gnomad4 AMR exome

AF:

0.000402

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000562

Gnomad4 NFE exome

AF:

0.00112

Gnomad4 OTH exome

AF:

0.000977

GnomAD4 genome

AF:

0.000558

AC:

AN:

152296

Hom.:

Cov.:

AF XY:

0.000497

AC XY:

AN XY:

74468

show subpopulations

Gnomad4 AFR

AF:

0.0000963

Gnomad4 AMR

AF:

0.000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000188

Gnomad4 NFE

AF:

0.00100

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000635

Hom.:

Bravo

AF:

0.000601

TwinsUK

AF:

0.000809

AC:

ALSPAC

AF:

0.00130

AC:

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.00116

AC:

ExAC

AF:

0.000478

AC:

EpiCase

AF:

0.000982

EpiControl

AF:

0.000652

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:5

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Autosomal recessive polycystic kidney disease

Uncertain:1Benign:2

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Aug 05, 2019

Natera, Inc.

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Sep 23, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided

Uncertain:1Benign:2

Jul 02, 2018

Eurofins Ntd Llc (ga)

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Sep 29, 2020

GeneDx

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 29642553) -

Jan 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

PKHD1: BP4 -

PKHD1-related disorder

Benign:1

Oct 11, 2023

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as likely 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

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.42

BayesDel_noAF

Benign

-0.42

CADD

Benign

9.0

DANN

Benign

0.87

DEOGEN2

Benign

0.16

Eigen

Benign

-0.52

Eigen_PC

Benign

-0.51

FATHMM_MKL

Benign

0.28

LIST_S2

Benign

0.59

M_CAP

Benign

0.042

MetaRNN

Benign

0.014

MetaSVM

Benign

-0.57

MutationAssessor

Uncertain

2.2

PrimateAI

Benign

0.36

PROVEAN

Benign

-0.42

REVEL

Benign

0.17

Sift

Benign

0.073

Sift4G

Uncertain

0.049

Polyphen

0.0020

Vest4

0.083

MVP

0.64

MPC

0.057

ClinPred

0.030

GERP RS

2.6

Varity_R

0.038

gMVP

0.11

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