rs1554290169
Positions:
Variant summary
Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate
The NM_138694.4(PKHD1):c.7024G>A(p.Gly2342Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000657 in 152,116 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control
Consequence
PKHD1
NM_138694.4 missense
NM_138694.4 missense
Scores
6
11
2
Clinical Significance
Conservation
PhyloP100: 4.64
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.
PM2
?
Very rare variant in population databases, with high coverage;
PP3
?
MetaRNN computational evidence supports a deleterious effect, 0.928
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
PKHD1 | NM_138694.4 | c.7024G>A | p.Gly2342Ser | missense_variant | 44/67 | ENST00000371117.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
PKHD1 | ENST00000371117.8 | c.7024G>A | p.Gly2342Ser | missense_variant | 44/67 | 1 | NM_138694.4 | P2 | |
PKHD1 | ENST00000340994.4 | c.7024G>A | p.Gly2342Ser | missense_variant | 44/61 | 5 | A2 |
Frequencies
GnomAD3 genomes ? AF: 0.00000657 AC: 1AN: 152116Hom.: 0 Cov.: 32
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GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0AN: 1459568Hom.: 0 Cov.: 29 AF XY: 0.00 AC XY: 0AN XY: 726264
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GnomAD4 genome ? AF: 0.00000657 AC: 1AN: 152116Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74308
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Autosomal recessive polycystic kidney disease Uncertain:2
Uncertain significance, no assertion criteria provided | clinical testing | Natera, Inc. | Jun 08, 2018 | - - |
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Oct 18, 2017 | In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site, but this prediction has not been confirmed by published transcriptional studies. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals with PKHD1-related disease. This variant is not present in population databases (ExAC no frequency). This sequence change replaces glycine with serine at codon 2342 of the PKHD1 protein (p.Gly2342Ser). The glycine residue is highly conserved and there is a small physicochemical difference between glycine and serine. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Pathogenic
DANN
Uncertain
DEOGEN2
Uncertain
D;.
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Uncertain
D
LIST_S2
Uncertain
D;D
M_CAP
Uncertain
D
MetaRNN
Pathogenic
D;D
MetaSVM
Uncertain
D
MutationAssessor
Uncertain
M;M
MutationTaster
Benign
D;D
PrimateAI
Uncertain
T
PROVEAN
Uncertain
D;D
REVEL
Pathogenic
Sift
Pathogenic
D;D
Sift4G
Pathogenic
D;D
Polyphen
D;D
Vest4
MutPred
Loss of sheet (P = 0.0817);Loss of sheet (P = 0.0817);
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at