Genetic Variant GADL1:p.Ser358Tyr (chr3-30801066-G-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_207359.3(GADL1):c.1073C>A(p.Ser358Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.00000342 in 1,461,216 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S358C) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

GADL1
NM_207359.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.73

Publications

1 publications found

Variant links:

Genes affected

GADL1 (HGNC:27949): (glutamate decarboxylase like 1) Predicted to enable aspartate 1-decarboxylase activity; pyridoxal phosphate binding activity; and sulfinoalanine decarboxylase activity. Predicted to be involved in carboxylic acid metabolic process. Predicted to be located in cytosol. [provided by Alliance of Genome Resources, Apr 2022]

GADL1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_207359.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GADL1	NM_207359.3	MANE Select	c.1073C>A	p.Ser358Tyr	missense	Exon 12 of 15	NP_997242.2	Q6ZQY3-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
GADL1	ENST00000282538.10	TSL:5 MANE Select	c.1073C>A	p.Ser358Tyr	missense	Exon 12 of 15	ENSP00000282538.5	Q6ZQY3-1
GADL1	ENST00000454381.3	TSL:1	c.1073C>A	p.Ser358Tyr	missense	Exon 12 of 12	ENSP00000427059.1	Q6ZQY3-3
GADL1	ENST00000944950.1		c.938C>A	p.Ser313Tyr	missense	Exon 10 of 13	ENSP00000615009.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00

AC:

AN:

250994

AF XY:

0.00

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000342

AC:

AN:

1461216

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

726910

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33466

American (AMR)

AF:

0.00

AC:

AN:

44698

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26124

East Asian (EAS)

AF:

0.00

AC:

AN:

39660

South Asian (SAS)

AF:

0.00

AC:

AN:

86204

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53324

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5752

European-Non Finnish (NFE)

AF:

0.00000360

AC:

AN:

1111630

Other (OTH)

AF:

0.0000166

AC:

AN:

60358

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000000451865), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.295

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.39

BayesDel_addAF

Uncertain

0.066

BayesDel_noAF

Benign

-0.14

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.20

Eigen

Benign

0.088

Eigen_PC

Benign

0.036

FATHMM_MKL

Uncertain

0.90

LIST_S2

Uncertain

0.94

M_CAP

Benign

0.034

MetaRNN

Uncertain

0.69

MetaSVM

Benign

-0.36

MutationAssessor

Pathogenic

3.6

PhyloP100

3.7

PrimateAI

Uncertain

0.54

PROVEAN

Uncertain

-3.8

REVEL

Uncertain

0.32

Sift

Uncertain

0.027

Sift4G

Uncertain

0.011

Polyphen

0.97

Vest4

0.73

MutPred

0.69

Loss of disorder (P = 0.0462)

MVP

0.24

MPC

0.054

ClinPred

0.99

GERP RS

4.6

Varity_R

0.56

gMVP

0.65

Mutation Taster

=84/16

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.080

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over