3-81490414-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_000158.4(GBE1):​c.2102C>T​(p.Pro701Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000205 in 1,460,442 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. P701P) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

GBE1
NM_000158.4 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.98
Variant links:
Genes affected
GBE1 (HGNC:4180): (1,4-alpha-glucan branching enzyme 1) The protein encoded by this gene is a glycogen branching enzyme that catalyzes the transfer of alpha-1,4-linked glucosyl units from the outer end of a glycogen chain to an alpha-1,6 position on the same or a neighboring glycogen chain. Branching of the chains is essential to increase the solubility of the glycogen molecule and, consequently, in reducing the osmotic pressure within cells. Highest level of this enzyme are found in liver and muscle. Mutations in this gene are associated with glycogen storage disease IV (also known as Andersen's disease). [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.20697159).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GBE1NM_000158.4 linkuse as main transcriptc.2102C>T p.Pro701Leu missense_variant 16/16 ENST00000429644.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GBE1ENST00000429644.7 linkuse as main transcriptc.2102C>T p.Pro701Leu missense_variant 16/161 NM_000158.4 P1
GBE1ENST00000489715.1 linkuse as main transcriptc.1979C>T p.Pro660Leu missense_variant 16/162

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.0000201
AC:
5
AN:
248578
Hom.:
0
AF XY:
0.0000148
AC XY:
2
AN XY:
134890
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000131
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000887
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000205
AC:
30
AN:
1460442
Hom.:
0
Cov.:
29
AF XY:
0.0000138
AC XY:
10
AN XY:
726540
show subpopulations
Gnomad4 AFR exome
AF:
0.000179
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000139
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000540
Gnomad4 OTH exome
AF:
0.0000829
GnomAD4 genome
Cov.:
31
ExAC
AF:
0.00000827
AC:
1
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Polyneuropathy Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingInstitute of Human Genetics, University of GoettingenMar 11, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.092
BayesDel_addAF
Benign
-0.29
T
BayesDel_noAF
Benign
-0.42
CADD
Benign
18
DANN
Uncertain
0.99
DEOGEN2
Benign
0.086
T;T
Eigen
Benign
0.041
Eigen_PC
Benign
0.085
FATHMM_MKL
Uncertain
0.86
D
LIST_S2
Benign
0.66
T;T
M_CAP
Benign
0.018
T
MetaRNN
Benign
0.21
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.8
L;.
MutationTaster
Benign
0.94
D;D
PrimateAI
Uncertain
0.54
T
PROVEAN
Benign
-0.29
N;N
REVEL
Benign
0.13
Sift
Benign
0.044
D;D
Sift4G
Uncertain
0.0090
D;D
Polyphen
0.94
P;.
Vest4
0.24
MutPred
0.38
Loss of disorder (P = 0.0473);.;
MVP
0.52
MPC
0.045
ClinPred
0.31
T
GERP RS
5.0
Varity_R
0.046
gMVP
0.32

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.080
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: rs552335025; hg19: chr3-81539565; API