15-42326407-A-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_198141.3(GANC):​c.1403A>T​(p.Glu468Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000889 in 1,461,758 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

GANC
NM_198141.3 missense

Scores

8
7
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.08
Variant links:
Genes affected
GANC (HGNC:4139): (glucosidase alpha, neutral C) Glycosyl hydrolase enzymes hydrolyse the glycosidic bond between two or more carbohydrates, or between a carbohydrate and a non-carbohydrate moiety. This gene encodes a member of glycosyl hydrolases family 31. This enzyme hydrolyses terminal, non-reducing 1,4-linked alpha-D-glucose residues and releases alpha-D-glucose. This is a key enzyme in glycogen metabolism and its gene localizes to a chromosomal region (15q15) that is associated with susceptibility to diabetes. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Aug 2014]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.791

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GANCNM_198141.3 linkuse as main transcriptc.1403A>T p.Glu468Val missense_variant 12/24 ENST00000318010.13 NP_937784.2
GANCNM_001393928.1 linkuse as main transcriptc.1403A>T p.Glu468Val missense_variant 13/25 NP_001380857.1
GANCNM_001393929.1 linkuse as main transcriptc.1403A>T p.Glu468Val missense_variant 13/25 NP_001380858.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GANCENST00000318010.13 linkuse as main transcriptc.1403A>T p.Glu468Val missense_variant 12/241 NM_198141.3 ENSP00000326227 P1
GANCENST00000567421.1 linkuse as main transcriptn.1376A>T non_coding_transcript_exon_variant 11/125
GANCENST00000568953.1 linkuse as main transcriptn.107A>T non_coding_transcript_exon_variant 1/33

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251342
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135838
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:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000889
AC:
13
AN:
1461758
Hom.:
0
Cov.:
31
AF XY:
0.0000110
AC XY:
8
AN XY:
727194
show subpopulations
Gnomad4 AFR exome
AF:
0.00
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:
0.0000108
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000624
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsApr 06, 2023The c.1403A>T (p.E468V) alteration is located in exon 12 (coding exon 12) of the GANC gene. This alteration results from a A to T substitution at nucleotide position 1403, causing the glutamic acid (E) at amino acid position 468 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.15
BayesDel_addAF
Pathogenic
0.29
D
BayesDel_noAF
Pathogenic
0.17
CADD
Uncertain
25
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.62
D
Eigen
Uncertain
0.34
Eigen_PC
Uncertain
0.41
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
0.97
D
M_CAP
Uncertain
0.22
D
MetaRNN
Pathogenic
0.79
D
MetaSVM
Uncertain
0.47
D
MutationAssessor
Benign
1.0
L
MutationTaster
Benign
1.0
D
PrimateAI
Benign
0.38
T
PROVEAN
Pathogenic
-6.5
D
REVEL
Pathogenic
0.74
Sift
Pathogenic
0.0
D
Sift4G
Uncertain
0.0020
D
Polyphen
0.77
P
Vest4
0.65
MVP
0.88
MPC
0.15
ClinPred
0.99
D
GERP RS
5.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.61
gMVP
0.59

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.13
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: rs1400470951; hg19: chr15-42618605; API