dbSNP rs869025599: PIEZO1:c.3796+1G>C (chr16-88726546-C-G) – ACMG Classification: Pathogenic (10 pts)

Variant summary

Our verdict is Pathogenic. The variant received 10 ACMG points: 10P and 0B. PVS1PM2

The NM_001142864.4(PIEZO1):c.3796+1G>C variant causes a splice donor, intron change. The variant allele was found at a frequency of 0.000000716 in 1,396,916 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 7.2e-7 ( 0 hom. )

Consequence

PIEZO1
NM_001142864.4 splice_donor, intron

Scores

Splicing: ADA: 1.000

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.13

Publications

2 publications found

Variant links:

Genes affected

PIEZO1 (HGNC:28993): (piezo type mechanosensitive ion channel component 1 (Er blood group)) The protein encoded by this gene is a mechanically-activated ion channel that links mechanical forces to biological signals. The encoded protein contains 36 transmembrane domains and functions as a homotetramer. Defects in this gene have been associated with dehydrated hereditary stomatocytosis. [provided by RefSeq, Jul 2015]

PIEZO1 Gene-Disease associations (from GenCC):

PIEZO1-related generalized lymphatic dysplasia with non-immune hydrops fetalis
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
dehydrated hereditary stomatocytosis with or without pseudohyperkalemia and/or perinatal edema
Inheritance: AD Classification: STRONG Submitted by: Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae), ClinGen
lymphatic malformation 6
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine
dehydrated hereditary stomatocytosis
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

PIEZO1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 10 ACMG points.

PVS1

Splicing +-2 bp (donor or acceptor) variant, LoF is a know mechanism of disease, No cryptic splice site detected. Exon removal results in frameshift change.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PIEZO1	NM_001142864.4 link	c.3796+1G>C		splice_donor_variant, intron_variant	Intron 26 of 50	ENST00000301015.14	NP_001136336.2	Q92508

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PIEZO1	ENST00000301015.14 link	c.3796+1G>C		splice_donor_variant, intron_variant	Intron 26 of 50	1	NM_001142864.4	ENSP00000301015.9		Q92508
PIEZO1	ENST00000474606.1 link	c.-204G>C		upstream_gene_variant		4		ENSP00000428673.1		H0YB49

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00

AC:

AN:

153606

AF XY:

0.00

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

7.16e-7

AC:

AN:

1396916

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

688824

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31562

American (AMR)

AF:

0.00

AC:

AN:

35678

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25168

East Asian (EAS)

AF:

0.00

AC:

AN:

35690

South Asian (SAS)

AF:

0.0000126

AC:

AN:

79222

European-Finnish (FIN)

AF:

0.00

AC:

AN:

47982

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5638

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1078064

Other (OTH)

AF:

0.00

AC:

AN:

57912

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.63

BayesDel_noAF

Pathogenic

0.34

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

Eigen

Pathogenic

1.1

Eigen_PC

Pathogenic

0.90

FATHMM_MKL

Pathogenic

0.99

PhyloP100

7.1

GERP RS

4.5

PromoterAI

-0.15

Neutral

(source)

Mutation Taster

=0/100

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Pathogenic

1.0

dbscSNV1_RF

Pathogenic

0.93

SpliceAI score (max)

1.0

Details are displayed if max score is > 0.2

DS_DG_spliceai

0.70

Position offset: 29

DS_DL_spliceai

1.0

Position offset: 1

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

Publications

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rs869025599

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over