rs138388301

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_StrongBP6BP7BS2

The NM_138694.4(PKHD1):​c.3783C>T​(p.Gly1261Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00103 in 1,614,034 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. G1261G) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00097 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0010 ( 3 hom. )

Consequence

PKHD1
NM_138694.4 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:8

Conservation

PhyloP100: -2.86

Publications

2 publications found
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 Gene-Disease associations (from GenCC):
  • autosomal recessive polycystic kidney disease
    Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Myriad Women’s Health, Orphanet
  • polycystic kidney disease 4
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P, Laboratory for Molecular Medicine, Genomics England PanelApp
  • Caroli disease
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.86).
BP6
Variant 6-52026027-G-A is Benign according to our data. Variant chr6-52026027-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 262400.
BP7
Synonymous conserved (PhyloP=-2.86 with no splicing effect.
BS2
High Homozygotes in GnomAdExome4 at 3 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_138694.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PKHD1
NM_138694.4
MANE Select
c.3783C>Tp.Gly1261Gly
synonymous
Exon 32 of 67NP_619639.3
PKHD1
NM_170724.3
c.3783C>Tp.Gly1261Gly
synonymous
Exon 32 of 61NP_733842.2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PKHD1
ENST00000371117.8
TSL:1 MANE Select
c.3783C>Tp.Gly1261Gly
synonymous
Exon 32 of 67ENSP00000360158.3
PKHD1
ENST00000340994.4
TSL:5
c.3783C>Tp.Gly1261Gly
synonymous
Exon 32 of 61ENSP00000341097.4

Frequencies

GnomAD3 genomes
AF:
0.000973
AC:
148
AN:
152114
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000266
Gnomad AMI
AF:
0.0571
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00123
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000583
AC:
146
AN:
250602
AF XY:
0.000627
show subpopulations
Gnomad AFR exome
AF:
0.000248
Gnomad AMR exome
AF:
0.0000579
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000545
Gnomad FIN exome
AF:
0.000139
Gnomad NFE exome
AF:
0.00118
Gnomad OTH exome
AF:
0.000491
GnomAD4 exome
AF:
0.00104
AC:
1514
AN:
1461802
Hom.:
3
Cov.:
37
AF XY:
0.00106
AC XY:
770
AN XY:
727202
show subpopulations
African (AFR)
AF:
0.0000597
AC:
2
AN:
33478
American (AMR)
AF:
0.0000894
AC:
4
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.0000383
AC:
1
AN:
26136
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86256
European-Finnish (FIN)
AF:
0.000225
AC:
12
AN:
53354
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00131
AC:
1461
AN:
1111994
Other (OTH)
AF:
0.000546
AC:
33
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.497
Heterozygous variant carriers
0
93
186
280
373
466
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
52
104
156
208
260
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000972
AC:
148
AN:
152232
Hom.:
0
Cov.:
32
AF XY:
0.00107
AC XY:
80
AN XY:
74442
show subpopulations
African (AFR)
AF:
0.000265
AC:
11
AN:
41532
American (AMR)
AF:
0.00
AC:
0
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5182
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4816
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00124
AC:
84
AN:
68014
Other (OTH)
AF:
0.00
AC:
0
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.507
Heterozygous variant carriers
0
11
22
32
43
54
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00108
Hom.:
0
Bravo
AF:
0.00115
EpiCase
AF:
0.000981
EpiControl
AF:
0.000948

ClinVar

ClinVar submissions as Germline
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
4
not provided (5)
-
1
2
Autosomal recessive polycystic kidney disease (3)
-
-
2
not specified (2)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.86
CADD
Benign
0.12
DANN
Benign
0.47
PhyloP100
-2.9
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs138388301; hg19: chr6-51890825; COSMIC: COSV100582297; API