rs146041189

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_000642.3(AGL):​c.1885G>A​(p.Glu629Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000252 in 1,613,954 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E629D) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0015 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

AGL
NM_000642.3 missense

Scores

8
5
6

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:5

Conservation

PhyloP100: 9.53

Publications

1 publications found
Variant links:
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]
AGL Gene-Disease associations (from GenCC):
  • glycogen storage disease III
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Ambry Genetics, Laboratory for Molecular Medicine, Myriad Women’s Health, Orphanet, G2P, PanelApp Australia, Labcorp Genetics (formerly Invitae), Genomics England PanelApp

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ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.04611823).
BP6
Variant 1-99880781-G-A is Benign according to our data. Variant chr1-99880781-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 289630.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00149 (227/152292) while in subpopulation AFR AF = 0.0051 (212/41560). AF 95% confidence interval is 0.00454. There are 0 homozygotes in GnomAd4. There are 110 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
AGLNM_000642.3 linkc.1885G>A p.Glu629Lys missense_variant Exon 14 of 34 ENST00000361915.8 NP_000633.2 P35573-1A0A0S2A4E4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
AGLENST00000361915.8 linkc.1885G>A p.Glu629Lys missense_variant Exon 14 of 34 1 NM_000642.3 ENSP00000355106.3 P35573-1

Frequencies

GnomAD3 genomes
AF:
0.00150
AC:
228
AN:
152174
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00514
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000589
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:
0.00287
GnomAD2 exomes
AF:
0.000370
AC:
93
AN:
251304
AF XY:
0.000221
show subpopulations
Gnomad AFR exome
AF:
0.00529
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000123
AC:
180
AN:
1461662
Hom.:
0
Cov.:
31
AF XY:
0.000106
AC XY:
77
AN XY:
727136
show subpopulations
African (AFR)
AF:
0.00433
AC:
145
AN:
33464
American (AMR)
AF:
0.000157
AC:
7
AN:
44712
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26130
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39662
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86248
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.000520
AC:
3
AN:
5764
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1111880
Other (OTH)
AF:
0.000397
AC:
24
AN:
60382
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.476
Heterozygous variant carriers
0
11
22
34
45
56
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00149
AC:
227
AN:
152292
Hom.:
0
Cov.:
33
AF XY:
0.00148
AC XY:
110
AN XY:
74462
show subpopulations
African (AFR)
AF:
0.00510
AC:
212
AN:
41560
American (AMR)
AF:
0.000588
AC:
9
AN:
15296
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10604
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68028
Other (OTH)
AF:
0.00284
AC:
6
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.505
Heterozygous variant carriers
0
12
24
35
47
59
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000507
Hom.:
0
Bravo
AF:
0.00161
ESP6500AA
AF:
0.00567
AC:
25
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000527
AC:
64
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:3Benign:5
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:3Benign:1
Mar 28, 2023
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The AGL c.1885G>A; p.Glu629Lys variant (rs146041189), to our knowledge, is not reported in the medical literature but is reported in ClinVar (Variation ID: 289630). This variant is observed in the general population with an overall allele frequency of 0.05% (146/282700 alleles) in the Genome Aggregation Database. Computational analyses are uncertain whether this variant is neutral or deleterious (REVEL: 0.646). Due to limited information, the clinical significance of this variant is uncertain at this time. -

Aug 10, 2016
Eurofins Ntd Llc (ga)
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Dec 30, 2019
Mayo Clinic Laboratories, Mayo Clinic
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

May 14, 2020
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Glycogen storage disease type III Benign:3
Jul 15, 2021
Genome-Nilou Lab
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 27, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Sep 16, 2020
Natera, Inc.
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

AGL-related disorder Benign:1
Dec 03, 2019
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.33
BayesDel_addAF
Uncertain
0.11
D
BayesDel_noAF
Pathogenic
0.38
CADD
Uncertain
26
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.36
T;T;T;T;.
Eigen
Pathogenic
0.85
Eigen_PC
Pathogenic
0.85
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.98
D;.;.;.;D
M_CAP
Benign
0.083
D
MetaRNN
Benign
0.046
T;T;T;T;T
MetaSVM
Uncertain
0.37
D
MutationAssessor
Pathogenic
3.0
M;M;M;M;.
PhyloP100
9.5
PrimateAI
Uncertain
0.77
T
PROVEAN
Benign
-1.5
N;N;N;N;N
REVEL
Pathogenic
0.65
Sift
Uncertain
0.019
D;D;D;D;D
Sift4G
Uncertain
0.044
D;D;D;D;T
Polyphen
0.95
P;P;P;P;D
Vest4
0.92
MVP
0.94
MPC
0.24
ClinPred
0.083
T
GERP RS
6.1
Varity_R
0.46
gMVP
0.91
Mutation Taster
=59/41
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.060
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs146041189; hg19: chr1-100346337; API