rs776599112
Positions:
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The NM_000642.3(AGL):c.2591G>A(p.Arg864Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000806 in 1,613,692 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000082 ( 0 hom. )
Consequence
AGL
NM_000642.3 missense
NM_000642.3 missense
Scores
1
8
10
Clinical Significance
Conservation
PhyloP100: 8.99
Genes affected
AGL (HGNC:321): (amylo-alpha-1, 6-glucosidase, 4-alpha-glucanotransferase) This gene encodes the glycogen debrancher enzyme which is involved in glycogen degradation. This enzyme has two independent catalytic activities which occur at different sites on the protein: a 4-alpha-glucotransferase activity and a amylo-1,6-glucosidase activity. Mutations in this gene are associated with glycogen storage disease although a wide range of enzymatic and clinical variability occurs which may be due to tissue-specific alternative splicing. Alternatively spliced transcripts encoding different isoforms have been described. [provided by RefSeq, Jul 2008]
Genome browser will be placed here
ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 2 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
AGL | NM_000642.3 | c.2591G>A | p.Arg864Gln | missense_variant | 20/34 | ENST00000361915.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
AGL | ENST00000361915.8 | c.2591G>A | p.Arg864Gln | missense_variant | 20/34 | 1 | NM_000642.3 | P1 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152116Hom.: 0 Cov.: 32
GnomAD3 genomes
AF:
AC:
1
AN:
152116
Hom.:
Cov.:
32
Gnomad AFR
AF:
Gnomad AMI
AF:
Gnomad AMR
AF:
Gnomad ASJ
AF:
Gnomad EAS
AF:
Gnomad SAS
AF:
Gnomad FIN
AF:
Gnomad MID
AF:
Gnomad NFE
AF:
Gnomad OTH
AF:
GnomAD3 exomes AF: 0.0000159 AC: 4AN: 250964Hom.: 0 AF XY: 0.00000737 AC XY: 1AN XY: 135620
GnomAD3 exomes
AF:
AC:
4
AN:
250964
Hom.:
AF XY:
AC XY:
1
AN XY:
135620
Gnomad AFR exome
AF:
Gnomad AMR exome
AF:
Gnomad ASJ exome
AF:
Gnomad EAS exome
AF:
Gnomad SAS exome
AF:
Gnomad FIN exome
AF:
Gnomad NFE exome
AF:
Gnomad OTH exome
AF:
GnomAD4 exome AF: 0.00000821 AC: 12AN: 1461576Hom.: 0 Cov.: 32 AF XY: 0.00000825 AC XY: 6AN XY: 727082
GnomAD4 exome
AF:
AC:
12
AN:
1461576
Hom.:
Cov.:
32
AF XY:
AC XY:
6
AN XY:
727082
Gnomad4 AFR exome
AF:
Gnomad4 AMR exome
AF:
Gnomad4 ASJ exome
AF:
Gnomad4 EAS exome
AF:
Gnomad4 SAS exome
AF:
Gnomad4 FIN exome
AF:
Gnomad4 NFE exome
AF:
Gnomad4 OTH exome
AF:
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152116Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74300
GnomAD4 genome
AF:
AC:
1
AN:
152116
Hom.:
Cov.:
32
AF XY:
AC XY:
1
AN XY:
74300
Gnomad4 AFR
AF:
Gnomad4 AMR
AF:
Gnomad4 ASJ
AF:
Gnomad4 EAS
AF:
Gnomad4 SAS
AF:
Gnomad4 FIN
AF:
Gnomad4 NFE
AF:
Gnomad4 OTH
AF:
Alfa
AF:
Hom.:
Bravo
AF:
ExAC
AF:
AC:
5
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
Glycogen storage disease type III Uncertain:4
Uncertain significance, no assertion criteria provided | clinical testing | Natera, Inc. | Oct 28, 2019 | - - |
Uncertain significance, criteria provided, single submitter | clinical testing | Genome-Nilou Lab | Apr 11, 2023 | - - |
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Mar 19, 2022 | This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 864 of the AGL protein (p.Arg864Gln). This variant is present in population databases (rs776599112, gnomAD 0.02%). This missense change has been observed in individual(s) with glycogen storage disease III (PMID: 24257475). ClinVar contains an entry for this variant (Variation ID: 456475). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. - |
Uncertain significance, criteria provided, single submitter | clinical testing | Fulgent Genetics, Fulgent Genetics | Jul 30, 2021 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Benign
T
BayesDel_noAF
Uncertain
CADD
Uncertain
DANN
Uncertain
DEOGEN2
Benign
T;T;T;T;.
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
D;.;.;.;D
M_CAP
Benign
D
MetaRNN
Uncertain
D;D;D;D;D
MetaSVM
Benign
T
MutationAssessor
Uncertain
M;M;M;M;.
MutationTaster
Benign
D;D;D;D;D;D;D
PrimateAI
Uncertain
T
PROVEAN
Benign
N;N;N;N;N
REVEL
Benign
Sift
Benign
T;T;T;T;T
Sift4G
Benign
T;T;T;T;T
Polyphen
P;P;P;P;P
Vest4
MVP
MPC
0.058
ClinPred
T
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