rs144619714

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS1

The NM_004204.5(PIGQ):​c.1253C>G​(p.Ser418Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00013 in 1,612,864 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 (★).

Frequency

Genomes: 𝑓 0.00078 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000062 ( 0 hom. )

Consequence

PIGQ
NM_004204.5 missense

Scores

6
13

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 4.98

Publications

0 publications found
Variant links:
Genes affected
PIGQ (HGNC:14135): (phosphatidylinositol glycan anchor biosynthesis class Q) This gene is involved in the first step 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 gene encodes a N-acetylglucosaminyl transferase component that is part of the complex that catalyzes transfer of N-acetylglucosamine (GlcNAc) from UDP-GlcNAc to phosphatidylinositol (PI). Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jun 2012]
PIGQ Gene-Disease associations (from GenCC):
  • developmental and epileptic encephalopathy, 77
    Inheritance: AR Classification: STRONG, MODERATE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P
  • genetic developmental and epileptic encephalopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.017295748).
BP6
Variant 16-579098-C-G is Benign according to our data. Variant chr16-579098-C-G is described in ClinVar as Likely_benign. ClinVar VariationId is 456029.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000781 (119/152322) while in subpopulation AFR AF = 0.00284 (118/41580). AF 95% confidence interval is 0.00242. There are 0 homozygotes in GnomAd4. There are 58 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PIGQNM_004204.5 linkc.1253C>G p.Ser418Cys missense_variant Exon 7 of 11 ENST00000321878.10 NP_004195.2 Q9BRB3-2B2RAU6
PIGQNM_148920.4 linkc.1253C>G p.Ser418Cys missense_variant Exon 7 of 10 NP_683721.1 Q9BRB3-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PIGQENST00000321878.10 linkc.1253C>G p.Ser418Cys missense_variant Exon 7 of 11 1 NM_004204.5 ENSP00000326674.6 Q9BRB3-2

Frequencies

GnomAD3 genomes
AF:
0.000782
AC:
119
AN:
152206
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00285
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000200
AC:
50
AN:
250058
AF XY:
0.000155
show subpopulations
Gnomad AFR exome
AF:
0.00291
Gnomad AMR exome
AF:
0.0000579
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.0000616
AC:
90
AN:
1460542
Hom.:
0
Cov.:
31
AF XY:
0.0000509
AC XY:
37
AN XY:
726596
show subpopulations
African (AFR)
AF:
0.00230
AC:
77
AN:
33464
American (AMR)
AF:
0.0000671
AC:
3
AN:
44712
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26112
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39690
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86254
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52422
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1111760
Other (OTH)
AF:
0.000149
AC:
9
AN:
60360
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.464
Heterozygous variant carriers
0
4
9
13
18
22
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.000781
AC:
119
AN:
152322
Hom.:
0
Cov.:
31
AF XY:
0.000779
AC XY:
58
AN XY:
74470
show subpopulations
African (AFR)
AF:
0.00284
AC:
118
AN:
41580
American (AMR)
AF:
0.0000653
AC:
1
AN:
15312
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5166
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68020
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.522
Heterozygous variant carriers
0
6
11
17
22
28
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:
0.000290
Hom.:
0
Bravo
AF:
0.000948
ESP6500AA
AF:
0.00273
AC:
12
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000305
AC:
37

ClinVar

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

Submissions by phenotype

Epilepsy Benign:1
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.25
T
BayesDel_noAF
Benign
-0.13
CADD
Uncertain
25
DANN
Uncertain
0.99
DEOGEN2
Benign
0.099
.;.;T;T
Eigen
Uncertain
0.45
Eigen_PC
Uncertain
0.40
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Benign
0.81
.;T;T;T
M_CAP
Benign
0.026
D
MetaRNN
Benign
0.017
T;T;T;T
MetaSVM
Benign
-0.63
T
MutationAssessor
Uncertain
2.6
M;M;M;.
PhyloP100
5.0
PrimateAI
Uncertain
0.66
T
PROVEAN
Benign
-1.6
N;N;N;N
REVEL
Benign
0.24
Sift
Benign
0.066
T;T;T;T
Sift4G
Benign
0.079
T;T;D;D
Polyphen
1.0
D;D;D;.
Vest4
0.53
MVP
0.68
MPC
0.18
ClinPred
0.049
T
GERP RS
4.8
PromoterAI
0.032
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.29
gMVP
0.65
Mutation Taster
=47/53
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.12
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: rs144619714; hg19: chr16-629098; API