rs137853585
Positions:
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 6P and 4B. PP3_StrongPP5_ModerateBS2
The NM_000175.5(GPI):c.1615G>A(p.Asp539Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000547 in 1,461,572 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 Pathogenic (★).
Frequency
Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000055 ( 0 hom. )
Consequence
GPI
NM_000175.5 missense
NM_000175.5 missense
Scores
12
6
1
Clinical Significance
Conservation
PhyloP100: 9.87
Genes affected
GPI (HGNC:4458): (glucose-6-phosphate isomerase) This gene encodes a member of the glucose phosphate isomerase protein family. The encoded protein has been identified as a moonlighting protein based on its ability to perform mechanistically distinct functions. In the cytoplasm, the gene product functions as a glycolytic enzyme (glucose-6-phosphate isomerase) that interconverts glucose-6-phosphate and fructose-6-phosphate. Extracellularly, the encoded protein (also referred to as neuroleukin) functions as a neurotrophic factor that promotes survival of skeletal motor neurons and sensory neurons, and as a lymphokine that induces immunoglobulin secretion. The encoded protein is also referred to as autocrine motility factor based on an additional function as a tumor-secreted cytokine and angiogenic factor. Defects in this gene are the cause of nonspherocytic hemolytic anemia and a severe enzyme deficiency can be associated with hydrops fetalis, immediate neonatal death and neurological impairment. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2016]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 2 ACMG points.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.989
PP5
Variant 19-34399974-G-A is Pathogenic according to our data. Variant chr19-34399974-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 13642.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High AC in GnomAdExome4 at 8 AD gene.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD3 genomes
Cov.:
32
GnomAD4 exome AF: 0.00000547 AC: 8AN: 1461572Hom.: 0 Cov.: 32 AF XY: 0.00000688 AC XY: 5AN XY: 727136
GnomAD4 exome
AF:
AC:
8
AN:
1461572
Hom.:
Cov.:
32
AF XY:
AC XY:
5
AN XY:
727136
Gnomad4 AFR exome
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GnomAD4 genome Cov.: 32
GnomAD4 genome
Cov.:
32
ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Hemolytic anemia due to glucophosphate isomerase deficiency Pathogenic:1
Pathogenic, no assertion criteria provided | literature only | OMIM | Sep 15, 1996 | - - |
not provided Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Jan 28, 2022 | Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). ClinVar contains an entry for this variant (Variation ID: 13642). This missense change has been observed in individual(s) with GPI deficiency (PMID: 8822954, 26509025, 30585945). It has also been observed to segregate with disease in related individuals. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 539 of the GPI protein (p.Asp539Asn). Experimental studies have shown that this missense change affects GPI function (PMID: 9616041). For these reasons, this variant has been classified as Pathogenic. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Uncertain
CADD
Uncertain
DANN
Pathogenic
DEOGEN2
Pathogenic
.;.;D;D
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Pathogenic
D
LIST_S2
Pathogenic
D;D;.;D
M_CAP
Pathogenic
D
MetaRNN
Pathogenic
D;D;D;D
MetaSVM
Pathogenic
D
MutationAssessor
Uncertain
.;.;M;M
PrimateAI
Uncertain
T
PROVEAN
Uncertain
.;.;.;D
REVEL
Pathogenic
Sift
Uncertain
.;.;.;D
Sift4G
Uncertain
.;.;.;D
Polyphen
1.0
.;.;D;D
Vest4
0.85
MutPred
0.95
.;.;Gain of MoRF binding (P = 0.0626);Gain of MoRF binding (P = 0.0626);
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at