rs782768127

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PM5PP3_Moderate

The NM_003801.4(GPAA1):​c.1165G>A​(p.Ala389Thr) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.00000622 in 1,606,702 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A389P) has been classified as Pathogenic.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

GPAA1
NM_003801.4 missense, splice_region

Scores

1
13
5
Splicing: ADA: 0.9996
1

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.93
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 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr8-144085043-G-C is described in Lovd as [Pathogenic].
PP3
MetaRNN computational evidence supports a deleterious effect, 0.902

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GPAA1NM_003801.4 linkuse as main transcriptc.1165G>A p.Ala389Thr missense_variant, splice_region_variant 9/12 ENST00000355091.9 NP_003792.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GPAA1ENST00000355091.9 linkuse as main transcriptc.1165G>A p.Ala389Thr missense_variant, splice_region_variant 9/121 NM_003801.4 ENSP00000347206 P4O43292-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152210
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000413
AC:
1
AN:
242196
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
131486
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:
0.0000339
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000619
AC:
9
AN:
1454492
Hom.:
0
Cov.:
31
AF XY:
0.00000553
AC XY:
4
AN XY:
723410
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000352
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000451
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152210
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74368
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.00000827
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.34
BayesDel_addAF
Uncertain
0.071
D
BayesDel_noAF
Uncertain
-0.030
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.24
T;.
Eigen
Uncertain
0.49
Eigen_PC
Uncertain
0.53
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Benign
0.77
T;T
M_CAP
Benign
0.013
T
MetaRNN
Pathogenic
0.90
D;D
MetaSVM
Benign
-0.64
T
MutationAssessor
Uncertain
2.7
M;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.58
T
PROVEAN
Uncertain
-2.6
D;D
REVEL
Uncertain
0.50
Sift
Uncertain
0.0070
D;D
Sift4G
Uncertain
0.015
D;D
Polyphen
0.84
P;.
Vest4
0.69
MutPred
0.82
Loss of ubiquitination at K388 (P = 0.0834);.;
MVP
0.57
MPC
0.74
ClinPred
0.85
D
GERP RS
5.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.079
gMVP
0.52

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
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: rs782768127; hg19: chr8-145139946; API