17-80112081-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PM5

The NM_000152.5(GAA):​c.1735G>C​(p.Glu579Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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. E579K) has been classified as Pathogenic.

Frequency

Genomes: not found (cov: 33)

Consequence

GAA
NM_000152.5 missense

Scores

4
9
6

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.45
Variant links:
Genes affected
GAA (HGNC:4065): (alpha glucosidase) This gene encodes lysosomal alpha-glucosidase, which is essential for the degradation of glycogen to glucose in lysosomes. The encoded preproprotein is proteolytically processed to generate multiple intermediate forms and the mature form of the enzyme. Defects in this gene are the cause of glycogen storage disease II, also known as Pompe's disease, which is an autosomal recessive disorder with a broad clinical spectrum. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2016]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr17-80112081-G-A is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GAANM_000152.5 linkuse as main transcriptc.1735G>C p.Glu579Gln missense_variant 12/20 ENST00000302262.8 NP_000143.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GAAENST00000302262.8 linkuse as main transcriptc.1735G>C p.Glu579Gln missense_variant 12/201 NM_000152.5 ENSP00000305692 P1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
Cov.:
31
GnomAD4 genome
Cov.:
33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.25
BayesDel_addAF
Pathogenic
0.31
D
BayesDel_noAF
Pathogenic
0.20
CADD
Uncertain
23
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.75
D;D
Eigen
Uncertain
0.25
Eigen_PC
Uncertain
0.26
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.93
.;D
M_CAP
Pathogenic
0.31
D
MetaRNN
Uncertain
0.62
D;D
MetaSVM
Uncertain
0.47
D
MutationAssessor
Benign
1.5
L;L
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.51
T
PROVEAN
Benign
-1.9
N;N
REVEL
Pathogenic
0.70
Sift
Benign
0.21
T;T
Sift4G
Benign
0.14
T;T
Polyphen
0.61
P;P
Vest4
0.34
MutPred
0.66
Gain of MoRF binding (P = 0.0374);Gain of MoRF binding (P = 0.0374);
MVP
1.0
MPC
0.37
ClinPred
0.91
D
GERP RS
4.7
Varity_R
0.59
gMVP
0.88

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs991082382; hg19: chr17-78085880; API