6-51959882-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM1PM2

The NM_138694.4(PKHD1):ā€‹c.5896C>Gā€‹(p.Leu1966Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000496 in 1,612,896 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. L1966L) has been classified as Benign.

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 32)
Exomes š‘“: 0.0000048 ( 0 hom. )

Consequence

PKHD1
NM_138694.4 missense

Scores

11
8

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.81
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM1
In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 3 uncertain in NM_138694.4
PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PKHD1NM_138694.4 linkuse as main transcriptc.5896C>G p.Leu1966Val missense_variant 36/67 ENST00000371117.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PKHD1ENST00000371117.8 linkuse as main transcriptc.5896C>G p.Leu1966Val missense_variant 36/671 NM_138694.4 P2P08F94-1
PKHD1ENST00000340994.4 linkuse as main transcriptc.5896C>G p.Leu1966Val missense_variant 36/615 A2P08F94-2

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152000
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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
GnomAD4 exome
AF:
0.00000479
AC:
7
AN:
1460896
Hom.:
0
Cov.:
31
AF XY:
0.00000826
AC XY:
6
AN XY:
726788
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
0.00000630
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152000
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74244
show subpopulations
Gnomad4 AFR
AF:
0.00
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
EpiCase
AF:
0.0000546
EpiControl
AF:
0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Uncertain
0.088
D
BayesDel_noAF
Benign
-0.11
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.70
D;.
Eigen
Uncertain
0.34
Eigen_PC
Uncertain
0.23
FATHMM_MKL
Benign
0.63
D
LIST_S2
Benign
0.69
T;T
M_CAP
Uncertain
0.12
D
MetaRNN
Uncertain
0.56
D;D
MetaSVM
Uncertain
0.27
D
MutationAssessor
Uncertain
2.1
M;M
MutationTaster
Benign
0.80
N;N
PrimateAI
Benign
0.41
T
PROVEAN
Benign
-2.0
N;N
REVEL
Uncertain
0.52
Sift
Benign
0.10
T;T
Sift4G
Uncertain
0.0090
D;D
Polyphen
1.0
D;D
Vest4
0.22
MutPred
0.66
Gain of sheet (P = 0.0221);Gain of sheet (P = 0.0221);
MVP
0.95
MPC
0.15
ClinPred
0.74
D
GERP RS
4.6
Varity_R
0.27
gMVP
0.44

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
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: rs1266923; hg19: chr6-51824680; API