PKD1 p.Ala756Thr

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS1

The NM_001009944.3(PKD1):​c.2266G>A​(p.Ala756Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000179 in 1,461,146 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. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0010 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000083 ( 0 hom. )

Consequence

PKD1
NM_001009944.3 missense

Scores

19

Clinical Significance

Benign criteria provided, single submitter B:2

Conservation

PhyloP100: -2.26

Publications

2 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: Orphanet, ClinGen
  • polycystic kidney disease 1
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
  • 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

new If you want to explore the variant's impact on the transcript NM_001009944.3, check out the Mutation Effect Viewer. This is especially useful for frameshift variants or if you want to visualize the effect of exon loss / intron retention.

ACMG classification

Classification was made for transcript

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

BP4
Computational evidence support a benign effect (MetaRNN=0.0038975477).
BP6
Variant 16-2114757-C-T is Benign according to our data. Variant chr16-2114757-C-T is described in ClinVar as Benign. ClinVar VariationId is 586257.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.001 (153/152254) while in subpopulation AFR AF = 0.00354 (147/41560). AF 95% confidence interval is 0.00307. There are 0 homozygotes in GnomAd4. There are 81 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001009944.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PKD1
NM_001009944.3
MANE Select
c.2266G>Ap.Ala756Thr
missense
Exon 11 of 46NP_001009944.3P98161-1
PKD1
NM_000296.4
c.2266G>Ap.Ala756Thr
missense
Exon 11 of 46NP_000287.4

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PKD1
ENST00000262304.9
TSL:1 MANE Select
c.2266G>Ap.Ala756Thr
missense
Exon 11 of 46ENSP00000262304.4P98161-1
PKD1
ENST00000423118.5
TSL:1
c.2266G>Ap.Ala756Thr
missense
Exon 11 of 46ENSP00000399501.1P98161-3
PKD1
ENST00000488185.2
TSL:5
c.470+2732G>A
intron
N/AENSP00000456672.1H3BSE9

Frequencies

GnomAD3 genomes
AF:
0.000986
AC:
150
AN:
152138
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00347
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000393
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000165
AC:
22
AN:
133160
AF XY:
0.000124
show subpopulations
Gnomad AFR exome
AF:
0.00264
Gnomad AMR exome
AF:
0.000206
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000825
AC:
108
AN:
1308892
Hom.:
0
Cov.:
22
AF XY:
0.0000663
AC XY:
43
AN XY:
648980
show subpopulations
African (AFR)
AF:
0.00307
AC:
92
AN:
29948
American (AMR)
AF:
0.000169
AC:
6
AN:
35538
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24702
East Asian (EAS)
AF:
0.00
AC:
0
AN:
35326
South Asian (SAS)
AF:
0.00
AC:
0
AN:
77578
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
33624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
3956
European-Non Finnish (NFE)
AF:
9.87e-7
AC:
1
AN:
1012990
Other (OTH)
AF:
0.000163
AC:
9
AN:
55230
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.484
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

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.00100
AC:
153
AN:
152254
Hom.:
0
Cov.:
32
AF XY:
0.00109
AC XY:
81
AN XY:
74440
show subpopulations
African (AFR)
AF:
0.00354
AC:
147
AN:
41560
American (AMR)
AF:
0.000392
AC:
6
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5170
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67986
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.499
Heterozygous variant carriers
0
8
16
24
32
40
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
4
8
12
16
20
<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:
0.000569
Hom.:
0
Bravo
AF:
0.00112

ClinVar

ClinVar submissions
Significance:Benign
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
not provided (1)
-
-
1
PKD1-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.075
BayesDel_addAF
Benign
-0.71
T
BayesDel_noAF
Benign
-0.79
CADD
Benign
0.010
DANN
Benign
0.81
DEOGEN2
Benign
0.20
T
Eigen
Benign
-1.6
Eigen_PC
Benign
-1.7
FATHMM_MKL
Benign
0.037
N
LIST_S2
Benign
0.54
T
M_CAP
Benign
0.029
D
MetaRNN
Benign
0.0039
T
MetaSVM
Benign
-0.95
T
MutationAssessor
Benign
0.065
N
PhyloP100
-2.3
PrimateAI
Benign
0.41
T
PROVEAN
Benign
-0.88
N
REVEL
Benign
0.026
Sift
Benign
0.53
T
Sift4G
Benign
0.29
T
Varity_R
0.031
gMVP
0.19
Mutation Taster
=64/36
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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Publications

Other links and lift over

dbSNP: rs763021570;
hg19: chr16-2164758;
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