chr19-12896934-G-T

Variant summary

Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PM1PM2PM5PP3_Strong

The NM_000159.4(GCDH):​c.877G>T​(p.Ala293Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,874 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 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. A293T) has been classified as Pathogenic.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

GCDH
NM_000159.4 missense

Scores

12
5
2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 9.70
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]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 10 ACMG points.

PM1
In a helix (size 34) in uniprot entity GCDH_HUMAN there are 30 pathogenic changes around while only 0 benign (100%) in NM_000159.4
PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr19-12896934-G-A is described in Lovd as [Pathogenic].
PP3
MetaRNN computational evidence supports a deleterious effect, 0.94

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GCDHNM_000159.4 linkuse as main transcriptc.877G>T p.Ala293Ser missense_variant 9/12 ENST00000222214.10 NP_000150.1
GCDHNM_013976.5 linkuse as main transcriptc.877G>T p.Ala293Ser missense_variant 9/12 NP_039663.1
GCDHNR_102316.1 linkuse as main transcriptn.1040G>T non_coding_transcript_exon_variant 9/12
GCDHNR_102317.1 linkuse as main transcriptn.1258G>T non_coding_transcript_exon_variant 8/11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GCDHENST00000222214.10 linkuse as main transcriptc.877G>T p.Ala293Ser missense_variant 9/121 NM_000159.4 ENSP00000222214 P1Q92947-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000399
AC:
1
AN:
250466
Hom.:
0
AF XY:
0.00000738
AC XY:
1
AN XY:
135568
show subpopulations
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000882
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1460874
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
AN XY:
726794
show subpopulations
Gnomad4 AFR exome
AF:
0.00
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.28
BayesDel_addAF
Pathogenic
0.38
D
BayesDel_noAF
Pathogenic
0.30
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.93
D;D
Eigen
Pathogenic
0.95
Eigen_PC
Pathogenic
0.90
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
0.98
.;D
M_CAP
Uncertain
0.28
D
MetaRNN
Pathogenic
0.94
D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
2.9
M;M
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Uncertain
0.58
T
PROVEAN
Uncertain
-3.0
D;.
REVEL
Pathogenic
0.89
Sift
Uncertain
0.0010
D;.
Sift4G
Pathogenic
0.0
D;D
Polyphen
1.0
D;D
Vest4
0.80
MutPred
0.72
Loss of helix (P = 0.1299);Loss of helix (P = 0.1299);
MVP
1.0
MPC
1.1
ClinPred
0.98
D
GERP RS
5.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.92
gMVP
0.78

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.

Other links and lift over

dbSNP: rs121434371; hg19: chr19-13007748; API