16-2089786-T-C

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001009944.3(PKD1):​c.12853A>G​(p.Thr4285Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000501 in 1,597,588 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. T4285T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 34)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

PKD1
NM_001009944.3 missense

Scores

1
17

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: -5.12

Publications

1 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 -4 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.048431635).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PKD1NM_001009944.3 linkc.12853A>G p.Thr4285Ala missense_variant Exon 46 of 46 ENST00000262304.9 NP_001009944.3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PKD1ENST00000262304.9 linkc.12853A>G p.Thr4285Ala missense_variant Exon 46 of 46 1 NM_001009944.3 ENSP00000262304.4
PKD1ENST00000423118.5 linkc.12850A>G p.Thr4284Ala missense_variant Exon 46 of 46 1 ENSP00000399501.1
PKD1ENST00000472577.1 linkn.881A>G non_coding_transcript_exon_variant Exon 3 of 3 2

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152198
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
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:
0.000478
GnomAD4 exome
AF:
0.00000138
AC:
2
AN:
1445390
Hom.:
0
Cov.:
31
AF XY:
0.00000139
AC XY:
1
AN XY:
717502
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33330
American (AMR)
AF:
0.00
AC:
0
AN:
41962
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25700
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39156
South Asian (SAS)
AF:
0.00
AC:
0
AN:
84048
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50806
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5364
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1105310
Other (OTH)
AF:
0.0000335
AC:
2
AN:
59714
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

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:
0.0000394
AC:
6
AN:
152198
Hom.:
0
Cov.:
34
AF XY:
0.0000269
AC XY:
2
AN XY:
74364
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41452
American (AMR)
AF:
0.000327
AC:
5
AN:
15280
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10632
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68022
Other (OTH)
AF:
0.000478
AC:
1
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.508
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

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:
0.00
Hom.:
0
Bravo
AF:
0.0000831

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Uncertain:1
Nov 08, 2016
Athena Diagnostics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Polycystic kidney disease, adult type Uncertain:1
Apr 16, 2024
Fulgent Genetics, Fulgent Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Inborn genetic diseases Uncertain:1
Mar 01, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.12850A>G (p.T4284A) alteration is located in exon 46 (coding exon 46) of the PKD1 gene. This alteration results from a A to G substitution at nucleotide position 12850, causing the threonine (T) at amino acid position 4284 to be replaced by an alanine (A). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear.

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.057
BayesDel_addAF
Benign
-0.32
T
BayesDel_noAF
Benign
-0.70
CADD
Benign
0.0020
DANN
Benign
0.54
DEOGEN2
Benign
0.15
T;.
Eigen
Benign
-1.4
Eigen_PC
Benign
-1.5
FATHMM_MKL
Benign
0.023
N
LIST_S2
Benign
0.47
T;T
M_CAP
Benign
0.020
T
MetaRNN
Benign
0.048
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.2
M;.
PhyloP100
-5.1
PrimateAI
Benign
0.32
T
PROVEAN
Benign
-0.33
N;N
REVEL
Benign
0.017
Sift
Benign
0.50
T;T
Sift4G
Benign
0.66
T;T
Vest4
0.066
ClinPred
0.087
T
GERP RS
-7.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.019
gMVP
0.11
Mutation Taster
=85/15
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: rs1341672915; hg19: chr16-2139787; API