6-51753203-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_138694.4(PKHD1):​c.8948C>T​(p.Ser2983Leu) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,613,356 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

PKHD1
NM_138694.4 missense, splice_region

Scores

5
9
5
Splicing: ADA: 0.9991
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.94
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.831

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PKHD1NM_138694.4 linkuse as main transcriptc.8948C>T p.Ser2983Leu missense_variant, splice_region_variant 57/67 ENST00000371117.8 NP_619639.3 P08F94-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PKHD1ENST00000371117.8 linkuse as main transcriptc.8948C>T p.Ser2983Leu missense_variant, splice_region_variant 57/671 NM_138694.4 ENSP00000360158.3 P08F94-1
PKHD1ENST00000340994.4 linkuse as main transcriptc.8948C>T p.Ser2983Leu missense_variant, splice_region_variant 57/615 ENSP00000341097.4 P08F94-2

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152120
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251092
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135698
show subpopulations
Gnomad AFR exome
AF:
0.0000615
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:
6.84e-7
AC:
1
AN:
1461236
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
726950
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:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152120
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74312
show subpopulations
Gnomad4 AFR
AF:
0.0000483
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Autosomal recessive polycystic kidney disease Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingCounsylMar 22, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.093
BayesDel_addAF
Pathogenic
0.34
D
BayesDel_noAF
Pathogenic
0.25
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.40
T;.
Eigen
Uncertain
0.65
Eigen_PC
Pathogenic
0.67
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.87
D;D
M_CAP
Uncertain
0.13
D
MetaRNN
Pathogenic
0.83
D;D
MetaSVM
Uncertain
0.12
D
MutationAssessor
Pathogenic
3.0
M;M
PrimateAI
Benign
0.38
T
PROVEAN
Uncertain
-2.6
D;D
REVEL
Uncertain
0.61
Sift
Benign
0.11
T;T
Sift4G
Uncertain
0.0050
D;D
Polyphen
1.0
D;D
Vest4
0.83
MVP
0.99
MPC
0.34
ClinPred
0.98
D
GERP RS
6.0
Varity_R
0.24
gMVP
0.96

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.91
SpliceAI score (max)
0.39
Details are displayed if max score is > 0.2
DS_DL_spliceai
0.39
Position offset: -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: rs141169758; hg19: chr6-51618001; API