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GeneBe

9-35089129-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_032634.4(PIGO):​c.3233C>T​(p.Ser1078Phe) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,888 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S1078C) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

PIGO
NM_032634.4 missense

Scores

2
4
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.65
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.41403738).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PIGONM_032634.4 linkuse as main transcriptc.3233C>T p.Ser1078Phe missense_variant 11/11 ENST00000378617.4
PIGONM_001201484.2 linkuse as main transcriptc.1982C>T p.Ser661Phe missense_variant 13/13
PIGONM_152850.4 linkuse as main transcriptc.1982C>T p.Ser661Phe missense_variant 12/12
PIGOXM_005251619.4 linkuse as main transcriptc.3233C>T p.Ser1078Phe missense_variant 11/11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PIGOENST00000378617.4 linkuse as main transcriptc.3233C>T p.Ser1078Phe missense_variant 11/111 NM_032634.4 P1Q8TEQ8-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461888
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
727244
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
33
Bravo
AF:
0.00000378

ClinVar

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

Submissions by phenotype

Hyperphosphatasia with intellectual disability syndrome 2 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingBaylor GeneticsJun 28, 2018This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868]. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
0.010
T
BayesDel_noAF
Benign
-0.22
CADD
Uncertain
25
DANN
Uncertain
1.0
Eigen
Uncertain
0.65
Eigen_PC
Pathogenic
0.67
FATHMM_MKL
Pathogenic
0.99
D
M_CAP
Benign
0.022
T
MetaRNN
Benign
0.41
T;T;T
MetaSVM
Benign
-0.73
T
MutationTaster
Benign
0.99
D;D;N;N
PrimateAI
Benign
0.42
T
PROVEAN
Benign
-1.9
N;N;N
REVEL
Benign
0.23
Sift
Uncertain
0.0090
D;D;D
Sift4G
Uncertain
0.016
D;D;T
Polyphen
0.99
D;D;D
Vest4
0.35
MutPred
0.38
.;.;Loss of MoRF binding (P = 0.0791);
MVP
0.77
MPC
0.64
ClinPred
0.91
D
GERP RS
5.5
Varity_R
0.23
gMVP
0.24

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.

Other links and lift over

dbSNP: rs1179043464; hg19: chr9-35089126; API