15-42322016-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_198141.3(GANC):c.1289G>A(p.Arg430His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000479 in 1,607,780 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: 𝑓 0.000033 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000049 ( 0 hom. )

Consequence

GANC
NM_198141.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.81

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]

GANC links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.916

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
GANC	NM_198141.3 linkuse as main transcript	c.1289G>A	p.Arg430His	missense_variant	11/24	ENST00000318010.13
GANC	NM_001393928.1 linkuse as main transcript	c.1289G>A	p.Arg430His	missense_variant	12/25
GANC	NM_001393929.1 linkuse as main transcript	c.1289G>A	p.Arg430His	missense_variant	12/25

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GANC	ENST00000318010.13 linkuse as main transcript	c.1289G>A	p.Arg430His	missense_variant	11/24	1	NM_198141.3	P1
GANC	ENST00000567421.1 linkuse as main transcript	n.1262G>A		non_coding_transcript_exon_variant	10/12	5

Frequencies

GnomAD3 genomes

AF:

0.0000328

AC:

AN:

152216

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000503

AC:

AN:

238776

Hom.:

AF XY:

0.0000311

AC XY:

AN XY:

128750

show subpopulations

Gnomad AFR exome

AF:

0.0000659

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000572

Gnomad SAS exome

AF:

0.0000340

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000842

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000495

AC:

AN:

1455446

Hom.:

Cov.:

AF XY:

0.0000512

AC XY:

AN XY:

723316

show subpopulations

Gnomad4 AFR exome

AF:

0.000150

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.0000385

Gnomad4 EAS exome

AF:

0.0000254

Gnomad4 SAS exome

AF:

0.0000704

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000487

Gnomad4 OTH exome

AF:

0.0000664

GnomAD4 genome

AF:

0.0000328

AC:

AN:

152334

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74496

show subpopulations

Gnomad4 AFR

AF:

0.0000721

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:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000823

Hom.:

Bravo

AF:

0.0000453

ExAC

AF:

0.0000330

AC:

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 submitter

clinical testing

Ambry Genetics

Oct 04, 2022

The c.1289G>A (p.R430H) alteration is located in exon 11 (coding exon 11) of the GANC gene. This alteration results from a G to A substitution at nucleotide position 1289, causing the arginine (R) at amino acid position 430 to be replaced by a histidine (H). 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

Uncertain

0.49

BayesDel_addAF

Pathogenic

0.24

BayesDel_noAF

Pathogenic

0.30

Cadd

Pathogenic

Dann

Pathogenic

1.0

DEOGEN2

Pathogenic

0.80

Eigen

Pathogenic

0.91

Eigen_PC

Pathogenic

0.86

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Uncertain

0.97

M_CAP

Pathogenic

0.34

MetaRNN

Pathogenic

0.92

MetaSVM

Pathogenic

0.95

MutationAssessor

Pathogenic

3.4

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.66

PROVEAN

Pathogenic

-4.5

REVEL

Pathogenic

0.84

Sift

Uncertain

0.021

Sift4G

Uncertain

0.026

Polyphen

1.0

Vest4

0.82

MVP

0.86

MPC

0.18

ClinPred

0.92

GERP RS

5.4

Varity_R

0.66

gMVP

0.86

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over