rs121909301

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PM2PP3_StrongPP5_Moderate

The NM_000436.4(OXCT1):​c.971G>A​(p.Gly324Glu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000249 in 1,609,102 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 Pathogenic (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

OXCT1
NM_000436.4 missense

Scores

17
1

Clinical Significance

Pathogenic criteria provided, single submitter P:2

Conservation

PhyloP100: 7.51

Publications

8 publications found
Variant links:
Genes affected
OXCT1 (HGNC:8527): (3-oxoacid CoA-transferase 1) This gene encodes a member of the 3-oxoacid CoA-transferase gene family. The encoded protein is a homodimeric mitochondrial matrix enzyme that plays a central role in extrahepatic ketone body catabolism by catalyzing the reversible transfer of coenzyme A from succinyl-CoA to acetoacetate. Mutations in this gene are associated with succinyl CoA:3-oxoacid CoA transferase deficiency. [provided by RefSeq, Jul 2008]
OXCT1 Gene-Disease associations (from GenCC):
  • succinyl-CoA:3-ketoacid CoA transferase deficiency
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), G2P, Illumina, Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 8 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.978
PP5
Variant 5-41803148-C-T is Pathogenic according to our data. Variant chr5-41803148-C-T is described in ClinVar as Pathogenic. ClinVar VariationId is 8166.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000436.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
OXCT1
NM_000436.4
MANE Select
c.971G>Ap.Gly324Glu
missense
Exon 10 of 17NP_000427.1P55809-1
OXCT1
NM_001364299.2
c.992G>Ap.Gly331Glu
missense
Exon 11 of 18NP_001351228.1
OXCT1
NM_001364300.2
c.992G>Ap.Gly331Glu
missense
Exon 10 of 17NP_001351229.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
OXCT1
ENST00000196371.10
TSL:1 MANE Select
c.971G>Ap.Gly324Glu
missense
Exon 10 of 17ENSP00000196371.5P55809-1
OXCT1
ENST00000972071.1
c.971G>Ap.Gly324Glu
missense
Exon 10 of 18ENSP00000642130.1
OXCT1
ENST00000919063.1
c.971G>Ap.Gly324Glu
missense
Exon 10 of 18ENSP00000589122.1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
151894
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000797
AC:
2
AN:
250862
AF XY:
0.00000737
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000206
AC:
3
AN:
1457208
Hom.:
0
Cov.:
28
AF XY:
0.00000276
AC XY:
2
AN XY:
725238
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
33320
American (AMR)
AF:
0.00
AC:
0
AN:
44612
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26028
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39588
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86148
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53390
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5748
European-Non Finnish (NFE)
AF:
0.00000271
AC:
3
AN:
1108148
Other (OTH)
AF:
0.00
AC:
0
AN:
60226
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000000000000888178), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.392
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.00000658
AC:
1
AN:
151894
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74170
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
41370
American (AMR)
AF:
0.00
AC:
0
AN:
15224
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10570
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
67954
Other (OTH)
AF:
0.00
AC:
0
AN:
2086
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.375
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000200
Hom.:
0
Bravo
AF:
0.00000378
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.00000824
AC:
1

ClinVar

ClinVar submissions
Significance:Pathogenic
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
1
-
-
not provided (1)
1
-
-
Succinyl-CoA acetoacetate transferase deficiency (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.57
D
BayesDel_noAF
Pathogenic
0.60
CADD
Pathogenic
31
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.97
D
Eigen
Pathogenic
1.1
Eigen_PC
Pathogenic
1.0
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
1.0
D
M_CAP
Pathogenic
0.70
D
MetaRNN
Pathogenic
0.98
D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
4.5
H
PhyloP100
7.5
PrimateAI
Pathogenic
0.88
D
PROVEAN
Pathogenic
-7.7
D
REVEL
Pathogenic
0.95
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0010
D
Polyphen
1.0
D
Vest4
0.98
MVP
0.84
MPC
2.0
ClinPred
1.0
D
GERP RS
6.0
Varity_R
0.96
gMVP
1.0
Mutation Taster
=3/97
disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs121909301; hg19: chr5-41803250; API