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chr11-134253601-A-G

Variant summary

Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PVS1PS1_ModeratePM2PP5_Moderate

The NM_014384.3(ACAD8):ā€‹c.1A>Gā€‹(p.Met1?) variant causes a start lost change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000505 in 1,583,002 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (ā˜…).

Frequency

Genomes: š‘“ 0.000013 ( 0 hom., cov: 32)
Exomes š‘“: 0.0000042 ( 0 hom. )

Consequence

ACAD8
NM_014384.3 start_lost

Scores

5
4
7

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 0.790
Variant links:
Genes affected
ACAD8 (HGNC:87): (acyl-CoA dehydrogenase family member 8) This gene encodes a member of the acyl-CoA dehydrogenase family of enzymes that catalyze the dehydrogenation of acyl-CoA derivatives in the metabolism of fatty acids or branch chained amino acids. The encoded protein is a mitochondrial enzyme that functions in catabolism of the branched-chain amino acid valine. Defects in this gene are the cause of isobutyryl-CoA dehydrogenase deficiency.[provided by RefSeq, Nov 2009]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 14 ACMG points.

PVS1
Start lost variant, no new inframe start found.
PS1
Another start lost variant in NM_014384.3 (ACAD8) was described as [Likely_pathogenic] in ClinVar as 566782
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 11-134253601-A-G is Pathogenic according to our data. Variant chr11-134253601-A-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 2998335.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ACAD8NM_014384.3 linkuse as main transcriptc.1A>G p.Met1? start_lost 1/11 ENST00000281182.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ACAD8ENST00000281182.9 linkuse as main transcriptc.1A>G p.Met1? start_lost 1/111 NM_014384.3 P1Q9UKU7-1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152104
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.00000520
AC:
1
AN:
192448
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
105704
show subpopulations
Gnomad AFR exome
AF:
0.0000961
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:
0.00
GnomAD4 exome
AF:
0.00000419
AC:
6
AN:
1430898
Hom.:
0
Cov.:
31
AF XY:
0.00000564
AC XY:
4
AN XY:
709620
show subpopulations
Gnomad4 AFR exome
AF:
0.0000608
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000262
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000182
Gnomad4 OTH exome
AF:
0.0000169
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152104
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74308
show subpopulations
Gnomad4 AFR
AF:
0.0000483
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
Bravo
AF:
0.0000340
ExAC
AF:
0.00000866
AC:
1

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Deficiency of isobutyryl-CoA dehydrogenase Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testingInvitaeJan 03, 2024This sequence change affects the initiator methionine of the ACAD8 mRNA. The next in-frame methionine is located at codon 39. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. Disruption of the initiator codon has been observed in individual(s) with clinical features of isobutyryl-CoA dehydrogenase deficiency (PMID: 17924841, 24635911, 30626930). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.38
D
BayesDel_noAF
Pathogenic
0.31
CADD
Benign
16
DANN
Benign
0.63
DEOGEN2
Benign
0.30
T;.
Eigen
Benign
-0.91
Eigen_PC
Benign
-0.94
FATHMM_MKL
Benign
0.21
N
LIST_S2
Uncertain
0.90
D;D
M_CAP
Pathogenic
0.99
D
MetaRNN
Uncertain
0.73
D;D
MetaSVM
Uncertain
0.19
D
MutationTaster
Benign
1.0
D;D;N;N
PROVEAN
Benign
-0.56
N;N
REVEL
Uncertain
0.46
Sift
Pathogenic
0.0
D;D
Sift4G
Pathogenic
0.0
D;.
Polyphen
0.0090
B;.
Vest4
0.60
MVP
0.89
ClinPred
0.97
D
GERP RS
2.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.6
Varity_R
0.82
gMVP
0.67

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: rs763520594; hg19: chr11-134123495; API