Genetic Variant GCDH:c.-45C>G (chr19-12891260-C-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The ENST00000591470.5(GCDH):c.-45C>G variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000723 in 1,520,688 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000051 ( 0 hom. )

Consequence

GCDH
ENST00000591470.5 5_prime_UTR

Scores

Splicing: ADA: 0.0002977

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -3.00

Publications

0 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: Genomics England PanelApp, G2P, ClinGen, Labcorp Genetics (formerly Invitae), Orphanet, Myriad Women’s Health

GCDH links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.82).

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000591470.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
GCDH	NM_000159.4	MANE Select	c.-34-11C>G	intron	N/A	NP_000150.1	Q92947-1
GCDH	NM_013976.5		c.-34-11C>G	intron	N/A	NP_039663.1	Q92947-2
GCDH	NR_102316.1		n.75-11C>G	intron	N/A

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
GCDH	ENST00000591470.5	TSL:1	c.-45C>G	5_prime_UTR	Exon 1 of 11	ENSP00000466845.1	Q92947-1
GCDH	ENST00000222214.10	TSL:1 MANE Select	c.-34-11C>G	intron	N/A	ENSP00000222214.4	Q92947-1
GCDH	ENST00000590627.5	TSL:1	n.24-11C>G	intron	N/A

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152252

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

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

GnomAD2 exomes

AF:

0.0000184

AC:

AN:

217616

AF XY:

0.00000832

show subpopulations

Gnomad AFR exome

AF:

0.000227

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:

0.0000100

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000512

AC:

AN:

1368436

Hom.:

Cov.:

AF XY:

0.00000730

AC XY:

AN XY:

684664

show subpopulations

African (AFR)

AF:

0.0000626

AC:

AN:

31952

American (AMR)

AF:

0.00

AC:

AN:

43068

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25554

East Asian (EAS)

AF:

0.00

AC:

AN:

39010

South Asian (SAS)

AF:

0.00

AC:

AN:

84132

European-Finnish (FIN)

AF:

0.00

AC:

AN:

39148

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4050

European-Non Finnish (NFE)

AF:

0.00000479

AC:

AN:

1044046

Other (OTH)

AF:

0.00

AC:

AN:

57476

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.468

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

AF:

0.0000263

AC:

AN:

152252

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74384

show subpopulations

African (AFR)

AF:

0.0000965

AC:

AN:

41472

American (AMR)

AF:

0.00

AC:

AN:

15284

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5198

South Asian (SAS)

AF:

0.00

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68044

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.538

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000302

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.82

CADD

Benign

0.28

(source)

DANN

Benign

0.57

PhyloP100

-3.0

PromoterAI

0.032

Neutral

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.00030

dbscSNV1_RF

Benign

0.13

SpliceAI score (max)

0.050

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

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over