Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_032634.4(PIGO):c.423C>T(p.Gly141Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00186 in 1,614,210 control chromosomes in the GnomAD database, including 44 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.010 ( 23 hom., cov: 33)

Exomes 𝑓: 0.0010 ( 21 hom. )

Consequence

PIGO
NM_032634.4 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 1.44

Publications

0 publications found

Variant links:

Genes affected

PIGO (HGNC:23215): (phosphatidylinositol glycan anchor biosynthesis class O) This gene encodes a protein that is involved in glycosylphosphatidylinositol (GPI)-anchor biosynthesis. The GPI-anchor is a glycolipid which contains three mannose molecules in its core backbone. The GPI-anchor is found on many blood cells and serves to anchor proteins to the cell surface. This protein is involved in the transfer of ethanolaminephosphate (EtNP) to the third mannose in GPI. At least three alternatively spliced transcripts encoding two distinct isoforms have been found for this gene. [provided by RefSeq, Jan 2011]

PIGO Gene-Disease associations (from GenCC):

complex neurodevelopmental disorder
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
hyperphosphatasia with intellectual disability syndrome 2
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Illumina, Labcorp Genetics (formerly Invitae), PanelApp Australia
hyperphosphatasia-intellectual disability syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

PIGO links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.52).

BP6

Variant 9-35095143-G-A is Benign according to our data. Variant chr9-35095143-G-A is described in ClinVar as Benign. ClinVar VariationId is 262098.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=1.44 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.0101 (1533/152332) while in subpopulation AFR AF = 0.0352 (1465/41572). AF 95% confidence interval is 0.0337. There are 23 homozygotes in GnomAd4. There are 728 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 23 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_032634.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
PIGO	NM_032634.4	MANE Select	c.423C>T	p.Gly141Gly	synonymous	Exon 2 of 11	NP_116023.2
PIGO	NM_001201484.2		c.423C>T	p.Gly141Gly	synonymous	Exon 3 of 13	NP_001188413.1
PIGO	NM_152850.4		c.423C>T	p.Gly141Gly	synonymous	Exon 2 of 12	NP_690577.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
PIGO	ENST00000378617.4	TSL:1 MANE Select	c.423C>T	p.Gly141Gly	synonymous	Exon 2 of 11	ENSP00000367880.3
PIGO	ENST00000298004.9	TSL:1	c.423C>T	p.Gly141Gly	synonymous	Exon 3 of 13	ENSP00000298004.5
PIGO	ENST00000700261.1		c.423C>T	p.Gly141Gly	synonymous	Exon 2 of 12	ENSP00000514897.1

Frequencies

GnomAD3 genomes

AF:

0.0101

AC:

1531

AN:

152216

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0353

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00288

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000118

Gnomad OTH

AF:

0.00621

GnomAD2 exomes

AF:

0.00271

AC:

682

AN:

251438

AF XY:

0.00216

show subpopulations

Gnomad AFR exome

AF:

0.0378

Gnomad AMR exome

AF:

0.00147

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000616

Gnomad OTH exome

AF:

0.00130

GnomAD4 exome

AF:

0.00101

AC:

1477

AN:

1461878

Hom.:

Cov.:

AF XY:

0.000875

AC XY:

636

AN XY:

727236

show subpopulations

African (AFR)

AF:

0.0371

AC:

1242

AN:

33480

American (AMR)

AF:

0.00161

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000464

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.000693

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000252

AC:

AN:

1112004

Other (OTH)

AF:

0.00210

AC:

127

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.483

Heterozygous variant carriers

195

292

390

487

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

126

168

210

<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:

0.0101

AC:

1533

AN:

152332

Hom.:

Cov.:

AF XY:

0.00977

AC XY:

728

AN XY:

74496

show subpopulations

African (AFR)

AF:

0.0352

AC:

1465

AN:

41572

American (AMR)

AF:

0.00287

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.000414

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000118

AC:

AN:

68034

Other (OTH)

AF:

0.00614

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.501

Heterozygous variant carriers

156

235

313

391

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

100

<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:

0.00401

Hom.:

Bravo

AF:

0.0115

Asia WGS

AF:

0.00144

AC:

AN:

3478

EpiCase

AF:

0.00

EpiControl

AF:

0.000119

ClinVar

ClinVar submissions as Germline

Significance:Benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Hyperphosphatasia with intellectual disability syndrome 2 (2)

not provided (2)

not specified (2)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.52

CADD

Benign

8.0

(source)

DANN

Benign

0.81

PhyloP100

1.4

Mutation Taster

=100/0

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

NM_032634.4:c.423C>T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

ClinVar submissions as Germline

Computational scores

Splicing

Publications

Other links and lift over