rs368280915

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_176787.5(PIGN):​c.317A>C​(p.Tyr106Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000856 in 1,611,874 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000088 ( 0 hom. )

Consequence

PIGN
NM_176787.5 missense

Scores

11
6
1

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 7.89

Publications

0 publications found
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]
PIGN Gene-Disease associations (from GenCC):
  • multiple congenital anomalies-hypotonia-seizures syndrome 1
    Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, G2P, Labcorp Genetics (formerly Invitae), ClinGen
  • Fryns syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.937

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_176787.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PIGN
NM_176787.5
MANE Select
c.317A>Cp.Tyr106Ser
missense
Exon 5 of 31NP_789744.1O95427
PIGN
NM_001438896.1
c.317A>Cp.Tyr106Ser
missense
Exon 5 of 32NP_001425825.1
PIGN
NM_012327.6
c.317A>Cp.Tyr106Ser
missense
Exon 4 of 30NP_036459.1O95427

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PIGN
ENST00000640252.2
TSL:1 MANE Select
c.317A>Cp.Tyr106Ser
missense
Exon 5 of 31ENSP00000492233.1O95427
PIGN
ENST00000400334.7
TSL:1
c.317A>Cp.Tyr106Ser
missense
Exon 4 of 30ENSP00000383188.2O95427
PIGN
ENST00000638424.1
TSL:5
n.317A>C
non_coding_transcript_exon
Exon 3 of 29ENSP00000491963.1A0A1W2PQZ1

Frequencies

GnomAD3 genomes
AF:
0.0000591
AC:
9
AN:
152210
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000482
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000103
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000326
AC:
8
AN:
245612
AF XY:
0.0000301
show subpopulations
Gnomad AFR exome
AF:
0.000132
Gnomad AMR exome
AF:
0.0000293
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000450
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000884
AC:
129
AN:
1459664
Hom.:
0
Cov.:
30
AF XY:
0.0000923
AC XY:
67
AN XY:
725866
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33458
American (AMR)
AF:
0.0000225
AC:
1
AN:
44508
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26056
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39658
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85680
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53338
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.000107
AC:
119
AN:
1110894
Other (OTH)
AF:
0.000149
AC:
9
AN:
60304
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.481
Heterozygous variant carriers
0
6
12
18
24
30
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.0000591
AC:
9
AN:
152210
Hom.:
0
Cov.:
33
AF XY:
0.0000672
AC XY:
5
AN XY:
74366
show subpopulations
African (AFR)
AF:
0.0000482
AC:
2
AN:
41456
American (AMR)
AF:
0.00
AC:
0
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5200
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4838
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000103
AC:
7
AN:
68024
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.564
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000194
Hom.:
0
Bravo
AF:
0.0000604
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000121
AC:
1
ExAC
AF:
0.0000331
AC:
4

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Multiple congenital anomalies-hypotonia-seizures syndrome 1 (1)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.55
BayesDel_addAF
Pathogenic
0.25
D
BayesDel_noAF
Pathogenic
0.36
CADD
Pathogenic
29
DANN
Uncertain
0.99
DEOGEN2
Benign
0.39
T
Eigen
Pathogenic
0.71
Eigen_PC
Uncertain
0.63
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Pathogenic
0.99
D
M_CAP
Uncertain
0.26
D
MetaRNN
Pathogenic
0.94
D
MetaSVM
Uncertain
0.40
D
MutationAssessor
Pathogenic
3.6
H
PhyloP100
7.9
PrimateAI
Uncertain
0.78
T
PROVEAN
Pathogenic
-8.4
D
REVEL
Pathogenic
0.81
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.93
MVP
0.91
MPC
0.22
ClinPred
1.0
D
GERP RS
4.3
Varity_R
0.94
gMVP
0.95
Mutation Taster
=39/61
disease causing

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

Other links and lift over

dbSNP: rs368280915; hg19: chr18-59824946; API
For research and educational, non-commercial use only. Not for clinical or diagnostic use. GeneBe does not provide medical advice. Data use for AI modeling is prohibited: if used, the cost is $0.001 per byte of downloaded uncompressed data.