rs368921294

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 2P and 13B. PM2BP4_StrongBP6_Very_StrongBP7

The NM_176787.5(PIGN):ā€‹c.2448T>Cā€‹(p.Tyr816=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000157 in 1,557,748 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 Likely benign (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.00011 ( 0 hom., cov: 32)
Exomes š‘“: 0.00016 ( 0 hom. )

Consequence

PIGN
NM_176787.5 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 1.17
Variant links:
Genes affected
PIGN (HGNC:8967): (phosphatidylinositol glycan anchor biosynthesis class N) This gene encodes a protein that is involved in glycosylphosphatidylinositol (GPI)-anchor biosynthesis. The GPI-anchor is a glycolipid found on many blood cells and serves to anchor proteins to the cell surface. This protein is expressed in the endoplasmic reticulum and transfers phosphoethanolamine (EtNP) to the first mannose of the GPI anchor. Two alternatively spliced variants, which encode an identical isoform, have been reported. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -11 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.53).
BP6
Variant 18-62084585-A-G is Benign according to our data. Variant chr18-62084585-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 472220.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=1.17 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PIGNNM_176787.5 linkuse as main transcriptc.2448T>C p.Tyr816= synonymous_variant 27/31 ENST00000640252.2 NP_789744.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PIGNENST00000640252.2 linkuse as main transcriptc.2448T>C p.Tyr816= synonymous_variant 27/311 NM_176787.5 ENSP00000492233 P1

Frequencies

GnomAD3 genomes
AF:
0.000112
AC:
17
AN:
152210
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000193
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000118
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000985
AC:
17
AN:
172532
Hom.:
0
AF XY:
0.000121
AC XY:
11
AN XY:
90800
show subpopulations
Gnomad AFR exome
AF:
0.000210
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.000229
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000170
Gnomad OTH exome
AF:
0.000213
GnomAD4 exome
AF:
0.000162
AC:
227
AN:
1405538
Hom.:
0
Cov.:
28
AF XY:
0.000167
AC XY:
116
AN XY:
694276
show subpopulations
Gnomad4 AFR exome
AF:
0.0000942
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.000317
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000199
Gnomad4 NFE exome
AF:
0.000191
Gnomad4 OTH exome
AF:
0.000137
GnomAD4 genome
AF:
0.000112
AC:
17
AN:
152210
Hom.:
0
Cov.:
32
AF XY:
0.000188
AC XY:
14
AN XY:
74366
show subpopulations
Gnomad4 AFR
AF:
0.000193
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.000288
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000118
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000180
Hom.:
0
Bravo
AF:
0.000113

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Multiple congenital anomalies-hypotonia-seizures syndrome 1 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 29, 2024- -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenJul 01, 2022PIGN: BP4, BP7 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.53
CADD
Benign
4.9
DANN
Benign
0.41

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: rs368921294; hg19: chr18-59751818; API