Variant 4-507609-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001127178.3(PIGG):c.759+16G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000813 in 1,598,050 control chromosomes in the GnomAD database, including 12 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0040 ( 3 hom., cov: 33)

Exomes 𝑓: 0.00048 ( 9 hom. )

Consequence

PIGG
NM_001127178.3 intron

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.405

Variant links:

Genes affected

PIGG (HGNC:25985): (phosphatidylinositol glycan anchor biosynthesis class G (EMM blood group)) This gene encodes an enzyme involved in glycosylphosphatidylinositol-anchor biosynthesis. The encoded protein, which is localized to the endoplasmic reticulum, is involved in transferring ethanoloamine phosphate to mannose 2 of glycosylphosphatidylinositol species H7 to form species H8. Allelic variants of this gene have been associated with intellectual disability, hypotonia, and early-onset seizures. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2016]

PIGG links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.82).

BP6

Variant 4-507609-G-A is Benign according to our data. Variant chr4-507609-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 445879.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00399 (607/152278) while in subpopulation AFR AF= 0.014 (580/41558). AF 95% confidence interval is 0.013. There are 3 homozygotes in gnomad4. There are 285 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 3 BG,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PIGG	NM_001127178.3 linkuse as main transcript	c.759+16G>A		intron_variant		ENST00000453061.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PIGG	ENST00000453061.7 linkuse as main transcript	c.759+16G>A		intron_variant		1	NM_001127178.3	P4	Q5H8A4-1

Frequencies

GnomAD3 genomes

AF:

0.00399

AC:

607

AN:

152160

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0140

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000720

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00166

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00287

GnomAD3 exomes

AF:

0.00119

AC:

281

AN:

235334

Hom.:

AF XY:

0.00104

AC XY:

132

AN XY:

127422

show subpopulations

Gnomad AFR exome

AF:

0.0144

Gnomad AMR exome

AF:

0.000461

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00138

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000287

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000479

AC:

693

AN:

1445772

Hom.:

Cov.:

AF XY:

0.000462

AC XY:

332

AN XY:

718096

show subpopulations

Gnomad4 AFR exome

AF:

0.0140

Gnomad4 AMR exome

AF:

0.000622

Gnomad4 ASJ exome

AF:

0.0000389

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00138

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000236

Gnomad4 OTH exome

AF:

0.000922

GnomAD4 genome

AF:

0.00399

AC:

607

AN:

152278

Hom.:

Cov.:

AF XY:

0.00383

AC XY:

285

AN XY:

74440

show subpopulations

Gnomad4 AFR

AF:

0.0140

Gnomad4 AMR

AF:

0.000719

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00166

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00284

Alfa

AF:

0.00221

Hom.:

Bravo

AF:

0.00470

Asia WGS

AF:

0.00115

AC:

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Likely benign, criteria provided, single submitter	clinical testing	Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics	May 08, 2017	- -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Jun 08, 2021	- -

Intellectual disability, autosomal recessive 53

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 29, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.82

CADD

Benign

2.0

DANN

Benign

0.42

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

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

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

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over