rs150838488

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_138694.4(PKHD1):​c.5768A>T​(p.Gln1923Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00146 in 1,613,366 control chromosomes in the GnomAD database, including 10 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. 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. Q1923R) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0014 ( 6 hom., cov: 32)
Exomes 𝑓: 0.0015 ( 4 hom. )

Consequence

PKHD1
NM_138694.4 missense

Scores

1
2
15

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:11B:1

Conservation

PhyloP100: 1.43

Publications

0 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 -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.028435498).
BS2
High Homozygotes in GnomAd4 at 6 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.5768A>Tp.Gln1923Leu
missense
Exon 36 of 67NP_619639.3
PKHD1
NM_170724.3
c.5768A>Tp.Gln1923Leu
missense
Exon 36 of 61NP_733842.2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PKHD1
ENST00000371117.8
TSL:1 MANE Select
c.5768A>Tp.Gln1923Leu
missense
Exon 36 of 67ENSP00000360158.3
PKHD1
ENST00000340994.4
TSL:5
c.5768A>Tp.Gln1923Leu
missense
Exon 36 of 61ENSP00000341097.4

Frequencies

GnomAD3 genomes
AF:
0.00141
AC:
214
AN:
152038
Hom.:
6
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000338
Gnomad AMI
AF:
0.0811
Gnomad AMR
AF:
0.00131
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:
0.00153
Gnomad OTH
AF:
0.000479
GnomAD2 exomes
AF:
0.000722
AC:
181
AN:
250646
AF XY:
0.000753
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000924
Gnomad NFE exome
AF:
0.00143
Gnomad OTH exome
AF:
0.000982
GnomAD4 exome
AF:
0.00146
AC:
2138
AN:
1461210
Hom.:
4
Cov.:
32
AF XY:
0.00137
AC XY:
996
AN XY:
726912
show subpopulations
African (AFR)
AF:
0.000359
AC:
12
AN:
33424
American (AMR)
AF:
0.000269
AC:
12
AN:
44680
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26106
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39690
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86252
European-Finnish (FIN)
AF:
0.000112
AC:
6
AN:
53408
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5756
European-Non Finnish (NFE)
AF:
0.00181
AC:
2012
AN:
1111562
Other (OTH)
AF:
0.00156
AC:
94
AN:
60332
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.483
Heterozygous variant carriers
0
108
216
323
431
539
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
78
156
234
312
390
<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:
0.00141
AC:
214
AN:
152156
Hom.:
6
Cov.:
32
AF XY:
0.00132
AC XY:
98
AN XY:
74382
show subpopulations
African (AFR)
AF:
0.000337
AC:
14
AN:
41534
American (AMR)
AF:
0.00131
AC:
20
AN:
15268
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.000194
AC:
1
AN:
5164
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10608
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00153
AC:
104
AN:
67974
Other (OTH)
AF:
0.000474
AC:
1
AN:
2108
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.501
Heterozygous variant carriers
0
10
20
29
39
49
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:
0.000772
Hom.:
0
Bravo
AF:
0.00178
TwinsUK
AF:
0.00189
AC:
7
ALSPAC
AF:
0.000778
AC:
3
ESP6500AA
AF:
0.000454
AC:
2
ESP6500EA
AF:
0.00174
AC:
15
ExAC
AF:
0.000774
AC:
94
EpiCase
AF:
0.00142
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
-
5
-
not provided (5)
-
2
1
Autosomal recessive polycystic kidney disease (3)
-
2
-
Polycystic kidney disease 4 (2)
-
1
-
not specified (1)
-
1
-
PKHD1-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.093
BayesDel_addAF
Benign
-0.026
T
BayesDel_noAF
Pathogenic
0.18
CADD
Benign
19
DANN
Benign
0.82
DEOGEN2
Benign
0.33
T
Eigen
Benign
-0.45
Eigen_PC
Benign
-0.25
FATHMM_MKL
Benign
0.54
D
LIST_S2
Benign
0.64
T
M_CAP
Benign
0.024
T
MetaRNN
Benign
0.028
T
MetaSVM
Benign
-0.96
T
MutationAssessor
Benign
0.97
L
PhyloP100
1.4
PrimateAI
Benign
0.30
T
PROVEAN
Benign
-2.1
N
REVEL
Uncertain
0.51
Sift
Benign
1.0
T
Sift4G
Uncertain
0.033
D
Polyphen
0.024
B
Vest4
0.59
MVP
0.87
MPC
0.064
ClinPred
0.024
T
GERP RS
4.5
Varity_R
0.14
gMVP
0.75
Mutation Taster
=8/92
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
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: rs150838488; hg19: chr6-51824808; API