rs143362968

Positions:

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_001127178.3(PIGG):​c.1591G>A​(p.Val531Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000075 in 1,614,180 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000068 ( 1 hom. )

Consequence

PIGG
NM_001127178.3 missense

Scores

19

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.119
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.00471884).
BP6
Variant 4-521918-G-A is Benign according to our data. Variant chr4-521918-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 578352.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PIGGNM_001127178.3 linkuse as main transcriptc.1591G>A p.Val531Met missense_variant 8/13 ENST00000453061.7 NP_001120650.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PIGGENST00000453061.7 linkuse as main transcriptc.1591G>A p.Val531Met missense_variant 8/131 NM_001127178.3 ENSP00000415203 P4Q5H8A4-1

Frequencies

GnomAD3 genomes
AF:
0.000138
AC:
21
AN:
152180
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000217
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00173
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000211
AC:
53
AN:
251464
Hom.:
0
AF XY:
0.000228
AC XY:
31
AN XY:
135912
show subpopulations
Gnomad AFR exome
AF:
0.000185
Gnomad AMR exome
AF:
0.0000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00217
Gnomad SAS exome
AF:
0.0000980
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000440
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000677
AC:
99
AN:
1461882
Hom.:
1
Cov.:
32
AF XY:
0.0000674
AC XY:
49
AN XY:
727242
show subpopulations
Gnomad4 AFR exome
AF:
0.000209
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00149
Gnomad4 SAS exome
AF:
0.000104
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000117
Gnomad4 OTH exome
AF:
0.000149
GnomAD4 genome
AF:
0.000144
AC:
22
AN:
152298
Hom.:
0
Cov.:
33
AF XY:
0.000148
AC XY:
11
AN XY:
74468
show subpopulations
Gnomad4 AFR
AF:
0.000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00174
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000135
Hom.:
0
Bravo
AF:
0.000170
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000247
AC:
30
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Intellectual disability, autosomal recessive 53 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 19, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.096
BayesDel_addAF
Benign
-0.63
T
BayesDel_noAF
Benign
-0.68
CADD
Benign
1.1
DANN
Benign
0.87
DEOGEN2
Benign
0.018
.;T;T;.;.
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.4
FATHMM_MKL
Benign
0.12
N
LIST_S2
Benign
0.60
T;T;T;T;T
M_CAP
Benign
0.0042
T
MetaRNN
Benign
0.0047
T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.55
.;N;.;.;.
MutationTaster
Benign
1.0
N;N;N;N;N;N;N;N
PrimateAI
Benign
0.24
T
PROVEAN
Benign
-0.57
N;N;N;N;N
REVEL
Benign
0.012
Sift
Benign
0.24
T;T;T;T;T
Sift4G
Benign
0.10
T;T;T;T;T
Polyphen
0.066
B;B;.;B;B
Vest4
0.093
MVP
0.061
MPC
0.17
ClinPred
0.0041
T
GERP RS
-3.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Varity_R
0.016
gMVP
0.10

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: rs143362968; hg19: chr4-515707; COSMIC: COSV56316604; COSMIC: COSV56316604; API