chr4-88008021-CGAGGAG-C

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_000297.4(PKD2):​c.302_307delAGGAGG​(p.Glu101_Glu102del) variant causes a disruptive inframe deletion change. The variant allele was found at a frequency of 0.0000178 in 1,516,060 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

PKD2
NM_000297.4 disruptive_inframe_deletion

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.02
Variant links:
Genes affected
PKD2 (HGNC:9009): (polycystin 2, transient receptor potential cation channel) This gene encodes a member of the polycystin protein family. The encoded protein is a multi-pass membrane protein that functions as a calcium permeable cation channel, and is involved in calcium transport and calcium signaling in renal epithelial cells. This protein interacts with polycystin 1, and they may be partners in a common signaling cascade involved in tubular morphogenesis. Mutations in this gene are associated with autosomal dominant polycystic kidney disease type 2. [provided by RefSeq, Mar 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2
High AC in GnomAdExome4 at 26 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PKD2NM_000297.4 linkc.302_307delAGGAGG p.Glu101_Glu102del disruptive_inframe_deletion Exon 1 of 15 ENST00000237596.7 NP_000288.1 Q13563-1Q9UEU6
PKD2XM_011532028.3 linkc.302_307delAGGAGG p.Glu101_Glu102del disruptive_inframe_deletion Exon 1 of 14 XP_011530330.1
PKD2NR_156488.2 linkn.401_406delAGGAGG non_coding_transcript_exon_variant Exon 1 of 14

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PKD2ENST00000237596.7 linkc.302_307delAGGAGG p.Glu101_Glu102del disruptive_inframe_deletion Exon 1 of 15 1 NM_000297.4 ENSP00000237596.2 Q13563-1
ENSG00000286618ENST00000662475.1 linkn.112+339_112+344delCTCCTC intron_variant Intron 1 of 2

Frequencies

GnomAD3 genomes
AF:
0.00000664
AC:
1
AN:
150528
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.00
Gnomad OTH
AF:
0.000483
GnomAD4 exome
AF:
0.0000190
AC:
26
AN:
1365532
Hom.:
0
AF XY:
0.0000193
AC XY:
13
AN XY:
673648
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000872
Gnomad4 SAS exome
AF:
0.0000130
Gnomad4 FIN exome
AF:
0.0000297
Gnomad4 NFE exome
AF:
0.0000196
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000664
AC:
1
AN:
150528
Hom.:
0
Cov.:
32
AF XY:
0.0000136
AC XY:
1
AN XY:
73458
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000483
Alfa
AF:
0.000305
Hom.:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Apr 20, 2021
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

In silico analysis supports that this variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; In-frame deletion of 2 amino acids with an unclear effect on protein function -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs750077647; hg19: chr4-88929173; API