16-2118237-G-T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The ENST00000262304.9(PKD1):​c.755C>A​(p.Pro252Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000523 in 1,529,268 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P252R) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000044 ( 0 hom. )

Consequence

PKD1
ENST00000262304.9 missense

Scores

1
17

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.33

Publications

3 publications found
Variant links:
Genes affected
PKD1 (HGNC:9008): (polycystin 1, transient receptor potential channel interacting) This gene encodes a member of the polycystin protein family. The encoded glycoprotein contains a large N-terminal extracellular region, multiple transmembrane domains and a cytoplasmic C-tail. It is an integral membrane protein that functions as a regulator of calcium permeable cation channels and intracellular calcium homoeostasis. It is also involved in cell-cell/matrix interactions and may modulate G-protein-coupled signal-transduction pathways. It plays a role in renal tubular development, and mutations in this gene cause autosomal dominant polycystic kidney disease type 1 (ADPKD1). ADPKD1 is characterized by the growth of fluid-filled cysts that replace normal renal tissue and result in end-stage renal failure. Splice variants encoding different isoforms have been noted for this gene. Also, six pseudogenes, closely linked in a known duplicated region on chromosome 16p, have been described. [provided by RefSeq, Oct 2008]
PKD1 Gene-Disease associations (from GenCC):
  • autosomal dominant polycystic kidney disease
    Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
  • polycystic kidney disease 1
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Laboratory for Molecular Medicine, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
  • autosomal recessive polycystic kidney disease
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • Caroli disease
    Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.11750448).

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000262304.9. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PKD1
NM_001009944.3
MANE Select
c.755C>Ap.Pro252Gln
missense
Exon 5 of 46NP_001009944.3
PKD1
NM_000296.4
c.755C>Ap.Pro252Gln
missense
Exon 5 of 46NP_000287.4

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PKD1
ENST00000262304.9
TSL:1 MANE Select
c.755C>Ap.Pro252Gln
missense
Exon 5 of 46ENSP00000262304.4
PKD1
ENST00000423118.5
TSL:1
c.755C>Ap.Pro252Gln
missense
Exon 5 of 46ENSP00000399501.1
PKD1
ENST00000488185.2
TSL:5
c.-161C>A
upstream_gene
N/AENSP00000456672.1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152162
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000145
AC:
2
AN:
138402
AF XY:
0.0000133
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:
0.0000365
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000436
AC:
6
AN:
1377106
Hom.:
0
Cov.:
32
AF XY:
0.00000588
AC XY:
4
AN XY:
680552
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31436
American (AMR)
AF:
0.0000279
AC:
1
AN:
35812
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25118
East Asian (EAS)
AF:
0.00
AC:
0
AN:
35806
South Asian (SAS)
AF:
0.00
AC:
0
AN:
79468
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
35376
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4052
European-Non Finnish (NFE)
AF:
0.00000466
AC:
5
AN:
1072500
Other (OTH)
AF:
0.00
AC:
0
AN:
57538
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152162
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74322
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41436
American (AMR)
AF:
0.00
AC:
0
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68008
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.0000383
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.0000102
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.074
BayesDel_addAF
Benign
-0.28
T
BayesDel_noAF
Benign
-0.52
CADD
Benign
0.0040
DANN
Benign
0.40
DEOGEN2
Benign
0.13
T
Eigen
Benign
-1.6
Eigen_PC
Benign
-1.7
FATHMM_MKL
Benign
0.068
N
LIST_S2
Benign
0.33
T
M_CAP
Uncertain
0.25
D
MetaRNN
Benign
0.12
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.1
L
PhyloP100
-1.3
PrimateAI
Benign
0.36
T
PROVEAN
Benign
0.15
N
REVEL
Benign
0.071
Sift
Benign
0.49
T
Sift4G
Benign
0.60
T
Polyphen
0.73
P
Vest4
0.23
MutPred
0.42
Loss of glycosylation at P252 (P = 0.0017)
MVP
0.66
ClinPred
0.046
T
GERP RS
-8.3
PromoterAI
0.0032
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.017
gMVP
0.18
Mutation Taster
=66/34
polymorphism

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: rs771788496; hg19: chr16-2168238; API