rs2839672

Variant summary

Our verdict is Benign. The variant received -15 ACMG points: 1P and 16B. PP3BP4_StrongBP6_Very_StrongBS2

The NM_001134366.2(GAD2):​c.458C>A​(p.Pro153Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00659 in 1,613,700 control chromosomes in the GnomAD database, including 41 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0052 ( 2 hom., cov: 33)
Exomes 𝑓: 0.0067 ( 39 hom. )

Consequence

GAD2
NM_001134366.2 missense

Scores

7
7
4

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 7.57

Publications

8 publications found
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 was made for transcript

Our verdict: Benign. The variant received -15 ACMG points.

PP3
Multiple lines of computational evidence support a deleterious effect 7: AlphaMissense, Cadd, Eigen, FATHMM_MKL, MutationAssessor, phyloP100way_vertebrate, PROVEAN [when BayesDel_addAF, max_spliceai, MetaRNN, MutationTaster was below the threshold]
BP4
Computational evidence support a benign effect (MetaRNN=0.009708941).
BP6
Variant 10-26219214-C-A is Benign according to our data. Variant chr10-26219214-C-A is described in ClinVar as [Likely_benign]. Clinvar id is 782118.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High AC in GnomAd4 at 793 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
GAD2NM_001134366.2 linkc.458C>A p.Pro153Gln missense_variant Exon 4 of 16 ENST00000376261.8 NP_001127838.1 Q05329Q5VZ30
GAD2NM_000818.3 linkc.458C>A p.Pro153Gln missense_variant Exon 4 of 17 NP_000809.1 Q05329Q5VZ30

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
GAD2ENST00000376261.8 linkc.458C>A p.Pro153Gln missense_variant Exon 4 of 16 1 NM_001134366.2 ENSP00000365437.3 Q05329

Frequencies

GnomAD3 genomes
AF:
0.00521
AC:
793
AN:
152150
Hom.:
2
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00111
Gnomad AMI
AF:
0.0175
Gnomad AMR
AF:
0.00203
Gnomad ASJ
AF:
0.00375
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.00352
Gnomad FIN
AF:
0.0108
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.00801
Gnomad OTH
AF:
0.00334
GnomAD2 exomes
AF:
0.00551
AC:
1384
AN:
251140
AF XY:
0.00559
show subpopulations
Gnomad AFR exome
AF:
0.00123
Gnomad AMR exome
AF:
0.00116
Gnomad ASJ exome
AF:
0.00298
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0102
Gnomad NFE exome
AF:
0.00835
Gnomad OTH exome
AF:
0.00441
GnomAD4 exome
AF:
0.00673
AC:
9840
AN:
1461432
Hom.:
39
Cov.:
31
AF XY:
0.00667
AC XY:
4851
AN XY:
727004
show subpopulations
African (AFR)
AF:
0.000926
AC:
31
AN:
33478
American (AMR)
AF:
0.00148
AC:
66
AN:
44660
Ashkenazi Jewish (ASJ)
AF:
0.00352
AC:
92
AN:
26132
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39662
South Asian (SAS)
AF:
0.00326
AC:
281
AN:
86134
European-Finnish (FIN)
AF:
0.00983
AC:
525
AN:
53414
Middle Eastern (MID)
AF:
0.00208
AC:
12
AN:
5768
European-Non Finnish (NFE)
AF:
0.00763
AC:
8478
AN:
1111796
Other (OTH)
AF:
0.00586
AC:
354
AN:
60388
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
486
972
1457
1943
2429
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
302
604
906
1208
1510
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00521
AC:
793
AN:
152268
Hom.:
2
Cov.:
33
AF XY:
0.00510
AC XY:
380
AN XY:
74448
show subpopulations
African (AFR)
AF:
0.00111
AC:
46
AN:
41552
American (AMR)
AF:
0.00203
AC:
31
AN:
15294
Ashkenazi Jewish (ASJ)
AF:
0.00375
AC:
13
AN:
3470
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5194
South Asian (SAS)
AF:
0.00373
AC:
18
AN:
4828
European-Finnish (FIN)
AF:
0.0108
AC:
115
AN:
10600
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.00801
AC:
545
AN:
68008
Other (OTH)
AF:
0.00331
AC:
7
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.494
Heterozygous variant carriers
0
38
76
115
153
191
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00478
Hom.:
9
Bravo
AF:
0.00449
TwinsUK
AF:
0.00566
AC:
21
ALSPAC
AF:
0.0125
AC:
48
ESP6500AA
AF:
0.00182
AC:
8
ESP6500EA
AF:
0.00744
AC:
64
ExAC
AF:
0.00607
AC:
737
Asia WGS
AF:
0.00115
AC:
4
AN:
3478
EpiCase
AF:
0.00720
EpiControl
AF:
0.00741

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Nov 01, 2022
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

GAD2: BS2 -

Dec 31, 2019
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.73
BayesDel_addAF
Benign
-0.16
T
BayesDel_noAF
Uncertain
0.010
CADD
Pathogenic
28
DANN
Uncertain
0.99
DEOGEN2
Pathogenic
0.81
D;D;.
Eigen
Pathogenic
0.89
Eigen_PC
Pathogenic
0.85
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.96
.;D;D
MetaRNN
Benign
0.0097
T;T;T
MetaSVM
Benign
-0.28
T
MutationAssessor
Pathogenic
3.0
M;M;.
PhyloP100
7.6
PrimateAI
Uncertain
0.63
T
PROVEAN
Pathogenic
-4.6
D;D;.
REVEL
Uncertain
0.45
Sift
Uncertain
0.014
D;D;.
Sift4G
Uncertain
0.019
D;D;.
Polyphen
0.99
D;D;.
Vest4
0.80
MVP
0.59
MPC
1.2
ClinPred
0.017
T
GERP RS
5.6
Varity_R
0.78
gMVP
0.89
Mutation Taster
=35/65
disease causing

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

Other links and lift over

dbSNP: rs2839672; hg19: chr10-26508143; API