rs200511261

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM1PP5

The NM_138694.4(PKHD1):​c.9530T>C​(p.Ile3177Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000917 in 1,613,662 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I3177V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000096 ( 0 hom. )

Consequence

PKHD1
NM_138694.4 missense

Scores

9
9

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:9U:4

Conservation

PhyloP100: 6.10

Publications

6 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: Laboratory for Molecular Medicine, G2P, Labcorp Genetics (formerly Invitae), 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: Uncertain_significance. The variant received 3 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, 8 uncertain in NM_138694.4
PP5
Variant 6-51748086-A-G is Pathogenic according to our data. Variant chr6-51748086-A-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 377018.

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.9530T>Cp.Ile3177Thr
missense
Exon 58 of 67NP_619639.3
PKHD1
NM_170724.3
c.9530T>Cp.Ile3177Thr
missense
Exon 58 of 61NP_733842.2P08F94-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PKHD1
ENST00000371117.8
TSL:1 MANE Select
c.9530T>Cp.Ile3177Thr
missense
Exon 58 of 67ENSP00000360158.3P08F94-1
PKHD1
ENST00000340994.4
TSL:5
c.9530T>Cp.Ile3177Thr
missense
Exon 58 of 61ENSP00000341097.4P08F94-2

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152216
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000882
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000518
AC:
13
AN:
250878
AF XY:
0.0000369
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000115
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000965
AC:
141
AN:
1461446
Hom.:
0
Cov.:
33
AF XY:
0.0000825
AC XY:
60
AN XY:
727056
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33472
American (AMR)
AF:
0.00
AC:
0
AN:
44700
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26130
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86246
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53416
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.000125
AC:
139
AN:
1111634
Other (OTH)
AF:
0.0000331
AC:
2
AN:
60386
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
9
18
26
35
44
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.0000460
AC:
7
AN:
152216
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74378
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41462
American (AMR)
AF:
0.00
AC:
0
AN:
15276
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5200
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10630
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000882
AC:
6
AN:
68036
Other (OTH)
AF:
0.00
AC:
0
AN:
2088
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.411
Heterozygous variant carriers
0
1
2
2
3
4
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:
0.0000833
Hom.:
0
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000519
AC:
2
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000412
AC:
5
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000119

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
4
1
-
not provided (5)
2
1
-
Autosomal recessive polycystic kidney disease (3)
3
-
-
Polycystic kidney disease 4 (3)
-
1
-
Biliary tract abnormality (1)
-
1
-
PKHD1-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.073
BayesDel_addAF
Uncertain
0.016
T
BayesDel_noAF
Uncertain
0.010
CADD
Benign
22
DANN
Uncertain
0.98
DEOGEN2
Benign
0.41
T
Eigen
Benign
0.075
Eigen_PC
Benign
0.19
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.81
T
M_CAP
Uncertain
0.093
D
MetaRNN
Uncertain
0.53
D
MetaSVM
Benign
-0.55
T
MutationAssessor
Benign
1.8
L
PhyloP100
6.1
PrimateAI
Benign
0.33
T
PROVEAN
Benign
-2.2
N
REVEL
Uncertain
0.56
Sift
Uncertain
0.012
D
Sift4G
Uncertain
0.0040
D
Polyphen
0.28
B
Vest4
0.52
MVP
0.93
MPC
0.22
ClinPred
0.29
T
GERP RS
5.9
Varity_R
0.21
gMVP
0.51
Mutation Taster
=7/93
disease causing (ClinVar)

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: rs200511261; hg19: chr6-51612884; API