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GeneBe

rs189345248

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_138694.4(PKHD1):c.657C>T(p.Gly219=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000941 in 1,594,332 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. G219G) has been classified as Pathogenic.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 29)
Exomes 𝑓: 0.0000097 ( 0 hom. )

Consequence

PKHD1
NM_138694.4 synonymous

Scores

2

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 2.12
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 2 ACMG points.

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.657C>T p.Gly219= synonymous_variant 9/67 ENST00000371117.8
LOC124901327XR_007059606.1 linkuse as main transcriptn.14G>A non_coding_transcript_exon_variant 1/3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PKHD1ENST00000371117.8 linkuse as main transcriptc.657C>T p.Gly219= synonymous_variant 9/671 NM_138694.4 P2P08F94-1
PKHD1ENST00000340994.4 linkuse as main transcriptc.657C>T p.Gly219= synonymous_variant 9/615 A2P08F94-2

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
151936
Hom.:
0
Cov.:
29
show subpopulations
Gnomad AFR
AF:
0.0000242
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:
0.0000319
AC:
8
AN:
250874
Hom.:
0
AF XY:
0.0000295
AC XY:
4
AN XY:
135562
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000883
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000971
AC:
14
AN:
1442396
Hom.:
0
Cov.:
28
AF XY:
0.0000125
AC XY:
9
AN XY:
718934
show subpopulations
Gnomad4 AFR exome
AF:
0.0000605
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000253
Gnomad4 SAS exome
AF:
0.0000233
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000366
Gnomad4 OTH exome
AF:
0.0000335
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
151936
Hom.:
0
Cov.:
29
AF XY:
0.00
AC XY:
0
AN XY:
74206
show subpopulations
Gnomad4 AFR
AF:
0.0000242
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
Alfa
AF:
0.0000425
Hom.:
0

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Autosomal recessive polycystic kidney disease Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingCounsylDec 07, 2017- -
Polycystic kidney disease 4 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsJan 04, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.54
Cadd
Benign
13
Dann
Benign
0.37

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.31
Details are displayed if max score is > 0.2
DS_DL_spliceai
0.31
Position offset: -10

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: rs189345248; hg19: chr6-51935814; COSMIC: COSV61887646; API