Genetic Variant GADL1:p.Trp329Cys (chr3-30833916-C-G) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

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

The NM_207359.3(GADL1):c.987G>C(p.Trp329Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000304 in 1,612,264 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 0.00011 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

GADL1
NM_207359.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.46

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:

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, 0.935

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GADL1	NM_207359.3 link	c.987G>C	p.Trp329Cys	missense_variant	Exon 11 of 15	ENST00000282538.10	NP_997242.2	Q6ZQY3-1
GADL1	XM_017006297.2 link	c.930G>C	p.Trp310Cys	missense_variant	Exon 11 of 15		XP_016861786.1
GADL1	XM_047448071.1 link	c.987G>C	p.Trp329Cys	missense_variant	Exon 11 of 14		XP_047304027.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GADL1	ENST00000282538.10 link	c.987G>C	p.Trp329Cys	missense_variant	Exon 11 of 15	5	NM_207359.3	ENSP00000282538.5		Q6ZQY3-1
GADL1	ENST00000454381.3 link	c.987G>C	p.Trp329Cys	missense_variant	Exon 11 of 12	1		ENSP00000427059.1		Q6ZQY3-3

Frequencies

GnomAD3 genomes

AF:

0.0000987

AC:

AN:

151976

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000362

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000320

AC:

AN:

250328

Hom.:

AF XY:

0.0000443

AC XY:

AN XY:

135296

show subpopulations

Gnomad AFR exome

AF:

0.000431

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:

0.00

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.0000226

AC:

AN:

1460170

Hom.:

Cov.:

AF XY:

0.0000262

AC XY:

AN XY:

726468

show subpopulations

Gnomad4 AFR exome

AF:

0.000719

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:

0.00

Gnomad4 OTH exome

AF:

0.0000995

GnomAD4 genome

AF:

0.000105

AC:

AN:

152094

Hom.:

Cov.:

AF XY:

0.000148

AC XY:

AN XY:

74338

show subpopulations

Gnomad4 AFR

AF:

0.000385

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:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000434

Hom.:

Bravo

AF:

0.000125

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000412

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 22, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.987G>C (p.W329C) alteration is located in exon 11 (coding exon 11) of the GADL1 gene. This alteration results from a G to C substitution at nucleotide position 987, causing the tryptophan (W) at amino acid position 329 to be replaced by a cysteine (C). 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

Pathogenic

0.95

BayesDel_addAF

Benign

-0.089

BayesDel_noAF

Uncertain

-0.040

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Benign

0.16

T;.

Eigen

Pathogenic

0.87

Eigen_PC

Pathogenic

0.80

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

1.0

D;D

M_CAP

Uncertain

0.15

MetaRNN

Pathogenic

0.94

D;D

MetaSVM

Uncertain

-0.22

MutationAssessor

Pathogenic

3.5

H;H

PrimateAI

Uncertain

0.74

PROVEAN

Pathogenic

-13

D;D

REVEL

Uncertain

0.58

Sift

Pathogenic

0.0

D;D

Sift4G

Pathogenic

0.0

D;D

Polyphen

1.0

D;.

Vest4

0.94

MutPred

0.83

Loss of MoRF binding (P = 0.0264);Loss of MoRF binding (P = 0.0264);

MVP

0.36

MPC

0.056

ClinPred

1.0

GERP RS

5.0

Varity_R

0.87

gMVP

0.81

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