10-26219284-C-T

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_001134366.2(GAD2):​c.520+8C>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000236 in 1,480,654 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00025 ( 1 hom. )

Consequence

GAD2
NM_001134366.2 splice_region, intron

Scores

2
Splicing: ADA: 0.00002330
2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.0490
Variant links:
Genes affected
GAD2 (HGNC:4093): (glutamate decarboxylase 2) This gene encodes one of several forms of glutamic acid decarboxylase, identified as a major autoantigen in insulin-dependent diabetes. The enzyme encoded is responsible for catalyzing the production of gamma-aminobutyric acid from L-glutamic acid. A pathogenic role for this enzyme has been identified in the human pancreas since it has been identified as an autoantibody and an autoreactive T cell target in insulin-dependent diabetes. This gene may also play a role in the stiff man syndrome. Alternative splicing results in multiple transcript variants that encode the same protein. [provided by RefSeq, Oct 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.75).
BP6
Variant 10-26219284-C-T is Benign according to our data. Variant chr10-26219284-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 718079.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High AC in GnomAd4 at 21 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GAD2NM_001134366.2 linkuse as main transcriptc.520+8C>T splice_region_variant, intron_variant ENST00000376261.8 NP_001127838.1 Q05329Q5VZ30
GAD2NM_000818.3 linkuse as main transcriptc.520+8C>T splice_region_variant, intron_variant NP_000809.1 Q05329Q5VZ30

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GAD2ENST00000376261.8 linkuse as main transcriptc.520+8C>T splice_region_variant, intron_variant 1 NM_001134366.2 ENSP00000365437.3 Q05329

Frequencies

GnomAD3 genomes
AF:
0.000138
AC:
21
AN:
152164
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.000265
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000110
AC:
24
AN:
217836
Hom.:
0
AF XY:
0.000109
AC XY:
13
AN XY:
118730
show subpopulations
Gnomad AFR exome
AF:
0.0000669
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:
0.000222
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000247
AC:
328
AN:
1328490
Hom.:
1
Cov.:
20
AF XY:
0.000221
AC XY:
146
AN XY:
662070
show subpopulations
Gnomad4 AFR exome
AF:
0.0000672
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:
0.000319
Gnomad4 OTH exome
AF:
0.0000541
GnomAD4 genome
AF:
0.000138
AC:
21
AN:
152164
Hom.:
0
Cov.:
33
AF XY:
0.000108
AC XY:
8
AN XY:
74336
show subpopulations
Gnomad4 AFR
AF:
0.0000483
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000265
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000251
Hom.:
0
Bravo
AF:
0.000159

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpMay 09, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.75
CADD
Benign
11
DANN
Benign
0.60

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000023
dbscSNV1_RF
Benign
0.0
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: rs377665668; hg19: chr10-26508213; API