11-62626368-C-T

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 1P and 6B. PP2BP4_ModerateBS2

The NM_198334.3(GANAB):​c.2591G>A​(p.Arg864Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000105 in 1,612,822 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

GANAB
NM_198334.3 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.864
Variant links:
Genes affected
GANAB (HGNC:4138): (glucosidase II alpha subunit) This gene encodes the alpha subunit of glucosidase II and a member of the glycosyl hydrolase 31 family of proteins. The heterodimeric enzyme glucosidase II plays a role in protein folding and quality control by cleaving glucose residues from immature glycoproteins in the endoplasmic reticulum. Expression of the encoded protein is elevated in lung tumor tissue and in response to UV irradiation. Mutations in this gene cause autosomal-dominant polycystic kidney and liver disease. [provided by RefSeq, Jul 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), GANAB. . Gene score misZ 2.2404 (greater than the threshold 3.09). Trascript score misZ 3.2543 (greater than threshold 3.09). GenCC has associacion of gene with polycystic kidney disease 3 with or without polycystic liver disease, autosomal dominant polycystic kidney disease.
BP4
Computational evidence support a benign effect (MetaRNN=0.07981813).
BS2
High AC in GnomAdExome4 at 13 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GANABNM_198334.3 linkuse as main transcriptc.2591G>A p.Arg864Gln missense_variant 22/24 ENST00000356638.8 NP_938148.1 Q14697-1V9HWJ0

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GANABENST00000356638.8 linkuse as main transcriptc.2591G>A p.Arg864Gln missense_variant 22/241 NM_198334.3 ENSP00000349053.3 Q14697-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152178
Hom.:
0
Cov.:
32
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000318
AC:
8
AN:
251486
Hom.:
0
AF XY:
0.0000441
AC XY:
6
AN XY:
135918
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000527
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000890
AC:
13
AN:
1460644
Hom.:
0
Cov.:
30
AF XY:
0.0000110
AC XY:
8
AN XY:
726742
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000900
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152178
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74340
show subpopulations
Gnomad4 AFR
AF:
0.0000724
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000450
Hom.:
0
Bravo
AF:
0.0000378
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000330
AC:
4
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsSep 01, 2021The c.2657G>A (p.R886Q) alteration is located in exon 23 (coding exon 23) of the GANAB gene. This alteration results from a G to A substitution at nucleotide position 2657, causing the arginine (R) at amino acid position 886 to be replaced by a glutamine (Q). 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
0.077
BayesDel_addAF
Benign
-0.10
T
BayesDel_noAF
Benign
-0.20
CADD
Benign
19
DANN
Uncertain
1.0
DEOGEN2
Benign
0.057
.;.;.;T;.
Eigen
Benign
-0.57
Eigen_PC
Benign
-0.45
FATHMM_MKL
Benign
0.11
N
LIST_S2
Benign
0.85
D;T;.;T;T
M_CAP
Benign
0.038
D
MetaRNN
Benign
0.080
T;T;T;T;T
MetaSVM
Benign
-0.74
T
MutationAssessor
Benign
0.20
.;.;.;N;.
PrimateAI
Benign
0.35
T
PROVEAN
Benign
0.040
N;N;.;N;N
REVEL
Benign
0.24
Sift
Benign
0.16
T;T;.;T;T
Sift4G
Benign
0.36
T;T;.;T;T
Polyphen
0.0
B;.;.;B;B
Vest4
0.18
MVP
0.44
MPC
0.24
ClinPred
0.067
T
GERP RS
2.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.033
gMVP
0.44

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: rs370213372; hg19: chr11-62393840; COSMIC: COSV55488266; COSMIC: COSV55488266; API