16-88725505-C-G

Position:

• chr16-88725505-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2 PP3_Moderate PP5

The NM_001142864.4(PIEZO1):​c.4073G>C​(p.Arg1358Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000726 in 1,377,054 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 7.3e-7 (0 hom.)
• Consequence: PIEZO1 NM_001142864.4 missense
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 1.19

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 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.878
• PP5: Variant 16-88725505-C-G is Pathogenic according to our data. Variant chr16-88725505-C-G is described in ClinVar as [Pathogenic]. Clinvar id is 55808.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PIEZO1	NM_001142864.4	c.4073G>C	p.Arg1358Pro	missense_variant	29/51	ENST00000301015.14	NP_001136336.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PIEZO1	ENST00000301015.14	c.4073G>C	p.Arg1358Pro	missense_variant	29/51	1	NM_001142864.4	ENSP00000301015.9
PIEZO1	ENST00000474606.1	c.164G>C	p.Arg55Pro	missense_variant	3/7	4		ENSP00000428673.1
PIEZO1	ENST00000475586.1	n.446G>C		non_coding_transcript_exon_variant	2/3	4

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 7.26e-7 AC: 1 AN: 1377054 Hom.: 0 Cov.: 32 AF XY: 0.00000148 AC XY: 1 AN XY: 677124

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 9.38e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Dehydrated hereditary stomatocytosis with or without pseudohyperkalemia and/or perinatal edema Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Jan 01, 2013

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.96
BayesDel_addAF	Uncertain	0.16	D
BayesDel_noAF	Uncertain	-0.010
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.56	D
Eigen	Benign	0.030
Eigen_PC	Benign	0.000085
FATHMM_MKL	Uncertain	0.92	D
LIST_S2	Uncertain	0.88	D
M_CAP	Pathogenic	0.91	D
MetaRNN	Pathogenic	0.88	D
MetaSVM	Benign	-0.68	T
MutationAssessor	Uncertain	2.8	M
PrimateAI	Uncertain	0.61	T
PROVEAN	Pathogenic	-4.4	D
REVEL	Uncertain	0.50
Sift	Uncertain	0.0030	D
Sift4G	Uncertain	0.0020	D
Polyphen		1.0	D
Vest4		0.85
MutPred		0.27		Gain of methylation at K1360 (P = 0.0373);
MVP		0.55
ClinPred		0.98	D
GERP RS		3.1
Varity_R		0.85
gMVP		0.76

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

LitVar

Other links and lift over

dbSNP: rs587776990; hg19: chr16-88791913;