1-99877597-A-G

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000642.3(AGL):​c.1424-44A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.371 in 1,577,868 control chromosomes in the GnomAD database, including 113,843 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.30 ( 8133 hom., cov: 32)
Exomes 𝑓: 0.38 ( 105710 hom. )

Consequence

AGL
NM_000642.3 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -0.558
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.68).
BP6
Variant 1-99877597-A-G is Benign according to our data. Variant chr1-99877597-A-G is described in ClinVar as [Benign]. Clinvar id is 256722.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.444 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
AGLNM_000642.3 linkuse as main transcriptc.1424-44A>G intron_variant ENST00000361915.8 NP_000633.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
AGLENST00000361915.8 linkuse as main transcriptc.1424-44A>G intron_variant 1 NM_000642.3 ENSP00000355106 P1P35573-1

Frequencies

GnomAD3 genomes
AF:
0.297
AC:
45120
AN:
151976
Hom.:
8120
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0932
Gnomad AMI
AF:
0.335
Gnomad AMR
AF:
0.324
Gnomad ASJ
AF:
0.299
Gnomad EAS
AF:
0.460
Gnomad SAS
AF:
0.310
Gnomad FIN
AF:
0.346
Gnomad MID
AF:
0.241
Gnomad NFE
AF:
0.393
Gnomad OTH
AF:
0.317
GnomAD3 exomes
AF:
0.351
AC:
86835
AN:
247060
Hom.:
16083
AF XY:
0.352
AC XY:
47131
AN XY:
133948
show subpopulations
Gnomad AFR exome
AF:
0.0899
Gnomad AMR exome
AF:
0.360
Gnomad ASJ exome
AF:
0.301
Gnomad EAS exome
AF:
0.445
Gnomad SAS exome
AF:
0.304
Gnomad FIN exome
AF:
0.345
Gnomad NFE exome
AF:
0.388
Gnomad OTH exome
AF:
0.363
GnomAD4 exome
AF:
0.379
AC:
540994
AN:
1425774
Hom.:
105710
Cov.:
25
AF XY:
0.377
AC XY:
268273
AN XY:
711422
show subpopulations
Gnomad4 AFR exome
AF:
0.0817
Gnomad4 AMR exome
AF:
0.355
Gnomad4 ASJ exome
AF:
0.311
Gnomad4 EAS exome
AF:
0.461
Gnomad4 SAS exome
AF:
0.305
Gnomad4 FIN exome
AF:
0.353
Gnomad4 NFE exome
AF:
0.397
Gnomad4 OTH exome
AF:
0.359
GnomAD4 genome
AF:
0.297
AC:
45152
AN:
152094
Hom.:
8133
Cov.:
32
AF XY:
0.296
AC XY:
21987
AN XY:
74330
show subpopulations
Gnomad4 AFR
AF:
0.0932
Gnomad4 AMR
AF:
0.324
Gnomad4 ASJ
AF:
0.299
Gnomad4 EAS
AF:
0.459
Gnomad4 SAS
AF:
0.311
Gnomad4 FIN
AF:
0.346
Gnomad4 NFE
AF:
0.393
Gnomad4 OTH
AF:
0.325
Alfa
AF:
0.342
Hom.:
1812
Bravo
AF:
0.290
Asia WGS
AF:
0.366
AC:
1274
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxJun 23, 2018- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Glycogen storage disease type III Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 14, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.68
CADD
Benign
9.1
DANN
Benign
0.85

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: rs2291638; hg19: chr1-100343153; COSMIC: COSV54049682; COSMIC: COSV54049682; API