rs782220208

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM2PP3_StrongPP5_Moderate

The NM_003801.4(GPAA1):ā€‹c.527G>Cā€‹(p.Trp176Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000753 in 1,461,722 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 Likely pathogenic (ā˜…).

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 0.0000075 ( 0 hom. )

Consequence

GPAA1
NM_003801.4 missense

Scores

13
4
2

Clinical Significance

Likely pathogenic criteria provided, single submitter P:2

Conservation

PhyloP100: 9.07
Variant links:
Genes affected
GPAA1 (HGNC:4446): (glycosylphosphatidylinositol anchor attachment 1) Posttranslational glycosylphosphatidylinositol (GPI) anchor attachment serves as a general mechanism for linking proteins to the cell surface membrane. The protein encoded by this gene presumably functions in GPI anchoring at the GPI transfer step. The mRNA transcript is ubiquitously expressed in both fetal and adult tissues. The anchor attachment protein 1 contains an N-terminal signal sequence, 1 cAMP- and cGMP-dependent protein kinase phosphorylation site, 1 leucine zipper pattern, 2 potential N-glycosylation sites, and 8 putative transmembrane domains. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.977
PP5
Variant 8-144083951-G-C is Pathogenic according to our data. Variant chr8-144083951-G-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 453251.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr8-144083951-G-C is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GPAA1NM_003801.4 linkuse as main transcriptc.527G>C p.Trp176Ser missense_variant 5/12 ENST00000355091.9 NP_003792.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GPAA1ENST00000355091.9 linkuse as main transcriptc.527G>C p.Trp176Ser missense_variant 5/121 NM_003801.4 ENSP00000347206 P4O43292-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.0000200
AC:
5
AN:
249540
Hom.:
0
AF XY:
0.0000295
AC XY:
4
AN XY:
135402
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000163
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000753
AC:
11
AN:
1461722
Hom.:
0
Cov.:
33
AF XY:
0.0000138
AC XY:
10
AN XY:
727158
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:
0.000128
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Glycosylphosphatidylinositol biosynthesis defect 15 Pathogenic:2
Likely pathogenic, criteria provided, single submittercurationSIB Swiss Institute of BioinformaticsOct 15, 2018This variant is interpreted as Likely Pathogenic, for Glycosylphosphatidylinositol biosynthesis defect 15, autosomal recessive. The following ACMG Tag(s) were applied: PM2 => Absent from controls (or at extremely low frequency if recessive) in Exome Sequencing Project, 1000 Genomes Project, or Exome Aggregation Consortium. PP3 => Multiple lines of computational evidence support a deleterious effect on the gene or gene product. PS3 => Well-established functional studies show a deleterious effect (https://www.ncbi.nlm.nih.gov/pubmed/29100095). PP1 => Cosegregation with disease in multiple affected family members in a gene definitively known to cause the disease (https://www.ncbi.nlm.nih.gov/pubmed/29100095). -
Pathogenic, no assertion criteria providedliterature onlyOMIMDec 18, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.97
BayesDel_addAF
Pathogenic
0.33
D
BayesDel_noAF
Pathogenic
0.49
CADD
Pathogenic
33
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.55
D;T;.
Eigen
Pathogenic
0.94
Eigen_PC
Pathogenic
0.89
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.90
D;D;D
M_CAP
Benign
0.056
D
MetaRNN
Pathogenic
0.98
D;D;D
MetaSVM
Uncertain
0.24
D
MutationAssessor
Pathogenic
3.4
M;.;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.85
D
PROVEAN
Pathogenic
-13
D;D;D
REVEL
Pathogenic
0.75
Sift
Pathogenic
0.0
D;D;D
Sift4G
Pathogenic
0.0
D;D;D
Polyphen
1.0
D;.;D
Vest4
0.91
MutPred
0.89
Gain of methylation at R171 (P = 0.052);.;.;
MVP
0.81
MPC
1.4
ClinPred
0.99
D
GERP RS
5.6
Varity_R
0.88
gMVP
0.93

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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: rs782220208; hg19: chr8-145138854; API