19-12897705-C-A

Variant names:

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 2P and 16B. PM1BP4_StrongBP6_Very_StrongBS2

The NM_000159.4(GCDH):c.1085C>A(p.Ala362Asp) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000888 in 1,614,112 control chromosomes in the GnomAD database, including 7 homozygotes. In-silico tool predicts a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A362V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0042 ( 4 hom., cov: 31)

Exomes 𝑓: 0.00054 ( 3 hom. )

Consequence

GCDH
NM_000159.4 missense, splice_region

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: 2.28

Publications

4 publications found

Variant links:

Genes affected

GCDH (HGNC:4189): (glutaryl-CoA dehydrogenase) The protein encoded by this gene belongs to the acyl-CoA dehydrogenase family. It catalyzes the oxidative decarboxylation of glutaryl-CoA to crotonyl-CoA and CO(2) in the degradative pathway of L-lysine, L-hydroxylysine, and L-tryptophan metabolism. It uses electron transfer flavoprotein as its electron acceptor. The enzyme exists in the mitochondrial matrix as a homotetramer of 45-kD subunits. Mutations in this gene result in the metabolic disorder glutaric aciduria type 1, which is also known as glutaric acidemia type I. Alternative splicing of this gene results in multiple transcript variants. A related pseudogene has been identified on chromosome 12. [provided by RefSeq, Mar 2013]

GCDH Gene-Disease associations (from GenCC):

glutaryl-CoA dehydrogenase deficiency
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Orphanet, G2P, Myriad Women’s Health

GCDH links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -14 ACMG points.

PM1

In a hotspot region, there are 7 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 7 uncertain in NM_000159.4

BP4

Computational evidence support a benign effect (MetaRNN=0.009075999).

BP6

Variant 19-12897705-C-A is Benign according to our data. Variant chr19-12897705-C-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 459946.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS2

High Homozygotes in GnomAd4 at 4 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein
GCDH	NM_000159.4 link	c.1085C>A	p.Ala362Asp	missense_variant, splice_region_variant	Exon 11 of 12	ENST00000222214.10	NP_000150.1
GCDH	NM_013976.5 link	c.1085C>A	p.Ala362Asp	missense_variant, splice_region_variant	Exon 11 of 12		NP_039663.1
GCDH	NR_102316.1 link	n.1248C>A		splice_region_variant, non_coding_transcript_exon_variant	Exon 11 of 12
GCDH	NR_102317.1 link	n.1466C>A		splice_region_variant, non_coding_transcript_exon_variant	Exon 10 of 11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GCDH	ENST00000222214.10 link	c.1085C>A	p.Ala362Asp	missense_variant, splice_region_variant	Exon 11 of 12	1	NM_000159.4	ENSP00000222214.4		Q92947-1

Frequencies

GnomAD3 genomes

AF:

0.00423

AC:

643

AN:

152134

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0144

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00131

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:

0.00335

GnomAD2 exomes

AF:

0.00119

AC:

298

AN:

251392

AF XY:

0.00104

show subpopulations

Gnomad AFR exome

AF:

0.0129

Gnomad AMR exome

AF:

0.00168

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000237

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000539

AC:

788

AN:

1461860

Hom.:

Cov.:

AF XY:

0.000479

AC XY:

348

AN XY:

727236

show subpopulations

African (AFR)

AF:

0.0149

AC:

499

AN:

33476

American (AMR)

AF:

0.00163

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.0000187

AC:

AN:

53408

Middle Eastern (MID)

AF:

0.00173

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000125

AC:

139

AN:

1111994

Other (OTH)

AF:

0.00106

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.452

Heterozygous variant carriers

143

191

239

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

100

<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:

0.00424

AC:

645

AN:

152252

Hom.:

Cov.:

AF XY:

0.00419

AC XY:

312

AN XY:

74436

show subpopulations

African (AFR)

AF:

0.0144

AC:

600

AN:

41534

American (AMR)

AF:

0.00131

AC:

AN:

15294

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5172

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000265

AC:

AN:

68012

Other (OTH)

AF:

0.00331

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.493

Heterozygous variant carriers

123

154

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

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

Alfa

AF:

0.00160

Hom.:

Bravo

AF:

0.00487

ESP6500AA

AF:

0.0116

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00139

AC:

169

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000164

EpiControl

AF:

0.000356

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:7

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Glutaric aciduria, type 1

Benign:3

Dec 12, 2019

Natera, Inc.

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

not provided

Benign:2

Breakthrough Genomics, Breakthrough Genomics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Jun 11, 2018

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Inborn genetic diseases

Benign:1

Aug 11, 2021

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

GCDH-related disorder

Benign:1

Mar 22, 2019

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.22

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.10

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Pathogenic

0.88

D;D

Eigen

Benign

-0.32

Eigen_PC

Benign

-0.26

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.89

.;D

MetaRNN

Benign

0.0091

T;T

MetaSVM

Uncertain

0.036

MutationAssessor

Benign

1.7

L;L

PhyloP100

2.3

PrimateAI

Uncertain

0.51

PROVEAN

Uncertain

-2.5

N;.

REVEL

Uncertain

0.34

Sift

Benign

0.090

T;.

Sift4G

Benign

0.20

T;T

Polyphen

0.0010

B;B

Vest4

0.37

MVP

0.92

MPC

0.58

ClinPred

0.0083

GERP RS

2.2

PromoterAI

-0.018

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.55

gMVP

0.97

Mutation Taster

=50/50

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over