1-99902826-T-C

Variant summary

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

The NM_000642.3(AGL):​c.3700+32T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0455 in 1,507,456 control chromosomes in the GnomAD database, including 1,769 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.052 ( 257 hom., cov: 32)
Exomes 𝑓: 0.045 ( 1512 hom. )

Consequence

AGL
NM_000642.3 intron

Scores

2

Clinical Significance

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

Conservation

PhyloP100: 0.243
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 Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 1-99902826-T-C is Benign according to our data. Variant chr1-99902826-T-C is described in ClinVar as [Benign]. Clinvar id is 256742.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0774 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
AGLNM_000642.3 linkuse as main transcriptc.3700+32T>C 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.3700+32T>C intron_variant 1 NM_000642.3 ENSP00000355106 P1P35573-1

Frequencies

GnomAD3 genomes
AF:
0.0522
AC:
7943
AN:
152152
Hom.:
257
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0797
Gnomad AMI
AF:
0.0482
Gnomad AMR
AF:
0.0301
Gnomad ASJ
AF:
0.00923
Gnomad EAS
AF:
0.0158
Gnomad SAS
AF:
0.0457
Gnomad FIN
AF:
0.0560
Gnomad MID
AF:
0.0127
Gnomad NFE
AF:
0.0457
Gnomad OTH
AF:
0.0445
GnomAD3 exomes
AF:
0.0388
AC:
9382
AN:
241516
Hom.:
239
AF XY:
0.0389
AC XY:
5085
AN XY:
130828
show subpopulations
Gnomad AFR exome
AF:
0.0823
Gnomad AMR exome
AF:
0.0155
Gnomad ASJ exome
AF:
0.0103
Gnomad EAS exome
AF:
0.00496
Gnomad SAS exome
AF:
0.0446
Gnomad FIN exome
AF:
0.0536
Gnomad NFE exome
AF:
0.0436
Gnomad OTH exome
AF:
0.0365
GnomAD4 exome
AF:
0.0448
AC:
60647
AN:
1355186
Hom.:
1512
Cov.:
19
AF XY:
0.0445
AC XY:
30205
AN XY:
679508
show subpopulations
Gnomad4 AFR exome
AF:
0.0840
Gnomad4 AMR exome
AF:
0.0168
Gnomad4 ASJ exome
AF:
0.0117
Gnomad4 EAS exome
AF:
0.0313
Gnomad4 SAS exome
AF:
0.0441
Gnomad4 FIN exome
AF:
0.0535
Gnomad4 NFE exome
AF:
0.0460
Gnomad4 OTH exome
AF:
0.0407
GnomAD4 genome
AF:
0.0522
AC:
7941
AN:
152270
Hom.:
257
Cov.:
32
AF XY:
0.0514
AC XY:
3828
AN XY:
74448
show subpopulations
Gnomad4 AFR
AF:
0.0796
Gnomad4 AMR
AF:
0.0300
Gnomad4 ASJ
AF:
0.00923
Gnomad4 EAS
AF:
0.0158
Gnomad4 SAS
AF:
0.0452
Gnomad4 FIN
AF:
0.0560
Gnomad4 NFE
AF:
0.0457
Gnomad4 OTH
AF:
0.0430
Alfa
AF:
0.0465
Hom.:
42
Bravo
AF:
0.0486
Asia WGS
AF:
0.0280
AC:
97
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 15, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.83
CADD
Benign
2.2
DANN
Benign
0.22

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs834575; hg19: chr1-100368382; API