rs371510537

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_138694.4(PKHD1):​c.7912-5T>G variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000809 in 1,606,658 control chromosomes in the GnomAD database, including 9 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00077 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00081 ( 9 hom. )

Consequence

PKHD1
NM_138694.4 splice_region, intron

Scores

2
Splicing: ADA: 0.2180
2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:8B:5

Conservation

PhyloP100: 0.486

Publications

1 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: Benign. The variant received -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.82).
BP6
Variant 6-51847975-A-C is Benign according to our data. Variant chr6-51847975-A-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 96425.
BS1
Variant frequency is greater than expected in population mid. GnomAdExome4 allele frequency = 0.000813 (1183/1454378) while in subpopulation MID AF = 0.0235 (135/5754). AF 95% confidence interval is 0.0202. There are 9 homozygotes in GnomAdExome4. There are 628 alleles in the male GnomAdExome4 subpopulation. Median coverage is 29. This position passed quality control check.
BS2
High Homozygotes in GnomAdExome4 at 9 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.7912-5T>G
splice_region intron
N/ANP_619639.3
PKHD1
NM_170724.3
c.7912-5T>G
splice_region intron
N/ANP_733842.2P08F94-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PKHD1
ENST00000371117.8
TSL:1 MANE Select
c.7912-5T>G
splice_region intron
N/AENSP00000360158.3P08F94-1
PKHD1
ENST00000340994.4
TSL:5
c.7912-5T>G
splice_region intron
N/AENSP00000341097.4P08F94-2

Frequencies

GnomAD3 genomes
AF:
0.000769
AC:
117
AN:
152162
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000169
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00314
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000622
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.0127
Gnomad NFE
AF:
0.000720
Gnomad OTH
AF:
0.00240
GnomAD2 exomes
AF:
0.00104
AC:
262
AN:
250930
AF XY:
0.00119
show subpopulations
Gnomad AFR exome
AF:
0.000246
Gnomad AMR exome
AF:
0.00139
Gnomad ASJ exome
AF:
0.000894
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00105
Gnomad OTH exome
AF:
0.00440
GnomAD4 exome
AF:
0.000813
AC:
1183
AN:
1454378
Hom.:
9
Cov.:
29
AF XY:
0.000867
AC XY:
628
AN XY:
724076
show subpopulations
African (AFR)
AF:
0.000240
AC:
8
AN:
33304
American (AMR)
AF:
0.00166
AC:
74
AN:
44688
Ashkenazi Jewish (ASJ)
AF:
0.00130
AC:
34
AN:
26088
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39652
South Asian (SAS)
AF:
0.00156
AC:
134
AN:
86098
European-Finnish (FIN)
AF:
0.0000375
AC:
2
AN:
53288
Middle Eastern (MID)
AF:
0.0235
AC:
135
AN:
5754
European-Non Finnish (NFE)
AF:
0.000627
AC:
693
AN:
1105360
Other (OTH)
AF:
0.00171
AC:
103
AN:
60146
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.473
Heterozygous variant carriers
0
59
118
178
237
296
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
30
60
90
120
150
<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:
0.000768
AC:
117
AN:
152280
Hom.:
0
Cov.:
32
AF XY:
0.000886
AC XY:
66
AN XY:
74468
show subpopulations
African (AFR)
AF:
0.000168
AC:
7
AN:
41552
American (AMR)
AF:
0.00314
AC:
48
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.000288
AC:
1
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.000622
AC:
3
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.0136
AC:
4
AN:
294
European-Non Finnish (NFE)
AF:
0.000720
AC:
49
AN:
68018
Other (OTH)
AF:
0.00237
AC:
5
AN:
2108
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.504
Heterozygous variant carriers
0
6
13
19
26
32
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:
0.000840
Hom.:
0
Bravo
AF:
0.00117
Asia WGS
AF:
0.000866
AC:
3
AN:
3478
EpiCase
AF:
0.00185
EpiControl
AF:
0.00142

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
3
3
not provided (6)
-
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
BayesDel_noAF
Benign
-0.82
CADD
Benign
9.8
DANN
Benign
0.56
PhyloP100
0.49
Mutation Taster
=70/30
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.22
dbscSNV1_RF
Benign
0.43
SpliceAI score (max)
0.17
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: rs371510537; hg19: chr6-51712773; API