rs75076115

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The NM_000642.3(AGL):​c.4450G>A​(p.Val1484Ile) variant causes a missense change. The variant allele was found at a frequency of 0.0000415 in 1,613,260 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict 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. V1484G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

AGL
NM_000642.3 missense

Scores

2
17

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 5.49
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.019005895).
BP6
Variant 1-99916700-G-A is Benign according to our data. Variant chr1-99916700-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 582646.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
AGLNM_000642.3 linkuse as main transcriptc.4450G>A p.Val1484Ile missense_variant 33/34 ENST00000361915.8 NP_000633.2 P35573-1A0A0S2A4E4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
AGLENST00000361915.8 linkuse as main transcriptc.4450G>A p.Val1484Ile missense_variant 33/341 NM_000642.3 ENSP00000355106.3 P35573-1

Frequencies

GnomAD3 genomes
AF:
0.000256
AC:
39
AN:
152072
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000942
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:
0.0000678
AC:
17
AN:
250840
Hom.:
0
AF XY:
0.0000590
AC XY:
8
AN XY:
135582
show subpopulations
Gnomad AFR exome
AF:
0.00105
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000192
AC:
28
AN:
1461070
Hom.:
0
Cov.:
31
AF XY:
0.0000110
AC XY:
8
AN XY:
726852
show subpopulations
Gnomad4 AFR exome
AF:
0.000777
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.00e-7
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.000256
AC:
39
AN:
152190
Hom.:
0
Cov.:
32
AF XY:
0.000242
AC XY:
18
AN XY:
74384
show subpopulations
Gnomad4 AFR
AF:
0.000939
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
Alfa
AF:
0.0000540
Hom.:
0
Bravo
AF:
0.000272
ESP6500AA
AF:
0.00113
AC:
5
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000115
AC:
14
Asia WGS
AF:
0.000578
AC:
3
AN:
3476

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Glycogen storage disease type III Uncertain:2Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 24, 2024- -
Uncertain significance, no assertion criteria providedclinical testingNatera, Inc.Oct 28, 2019- -
Uncertain significance, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsDec 22, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.071
BayesDel_addAF
Benign
-0.40
T
BayesDel_noAF
Benign
-0.40
CADD
Benign
17
DANN
Benign
0.31
DEOGEN2
Benign
0.025
T;T;T;T;.
Eigen
Benign
-0.46
Eigen_PC
Benign
-0.23
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.87
D;.;.;.;D
M_CAP
Benign
0.0076
T
MetaRNN
Benign
0.019
T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.0
L;L;L;L;.
PrimateAI
Benign
0.45
T
PROVEAN
Benign
0.11
N;N;N;N;N
REVEL
Benign
0.10
Sift
Benign
1.0
T;T;T;T;T
Sift4G
Benign
1.0
T;T;T;T;T
Polyphen
0.0
B;B;B;B;B
Vest4
0.11
MVP
0.57
MPC
0.036
ClinPred
0.024
T
GERP RS
2.9
Varity_R
0.015
gMVP
0.57

Splicing

Name
Calibrated prediction
Score
Prediction
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: rs75076115; hg19: chr1-100382256; API