rs148640214

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The NM_001609.4(ACADSB):​c.1187A>C​(p.Lys396Thr) variant causes a missense change. The variant allele was found at a frequency of 0.000215 in 1,613,974 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. K396E) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00031 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00021 ( 1 hom. )

Consequence

ACADSB
NM_001609.4 missense

Scores

3
10
6

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 6.10

Publications

4 publications found
Variant links:
Genes affected
ACADSB (HGNC:91): (acyl-CoA dehydrogenase short/branched chain) Short/branched chain acyl-CoA dehydrogenase(ACADSB) is 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. Substrate specificity is the primary characteristic used to define members of this gene family. The ACADSB gene product has the greatest activity towards the short branched chain acyl-CoA derivative, (S)-2-methylbutyryl-CoA, but also reacts significantly with other 2-methyl branched chain substrates and with short straight chain acyl-CoAs. The cDNA encodes for a mitochondrial precursor protein which is cleaved upon mitochondrial import and predicted to yield a mature peptide of approximately 43.7-KDa. [provided by RefSeq, Jul 2008]
ACADSB Gene-Disease associations (from GenCC):
  • 2-methylbutyryl-CoA dehydrogenase deficiency
    Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: ClinGen, Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics, PanelApp Australia

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.019441754).
BP6
Variant 10-123053119-A-C is Benign according to our data. Variant chr10-123053119-A-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 299087.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ACADSBNM_001609.4 linkc.1187A>C p.Lys396Thr missense_variant Exon 10 of 11 ENST00000358776.7 NP_001600.1 P45954-1A0A0S2Z3P9
ACADSBNM_001330174.3 linkc.881A>C p.Lys294Thr missense_variant Exon 9 of 10 NP_001317103.1 P45954-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ACADSBENST00000358776.7 linkc.1187A>C p.Lys396Thr missense_variant Exon 10 of 11 1 NM_001609.4 ENSP00000357873.3 P45954-1
ACADSBENST00000368869.8 linkc.881A>C p.Lys294Thr missense_variant Exon 9 of 10 2 ENSP00000357862.4 P45954-2
ACADSBENST00000541070.1 linkn.359A>C non_coding_transcript_exon_variant Exon 1 of 2 2

Frequencies

GnomAD3 genomes
AF:
0.000309
AC:
47
AN:
152196
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.0112
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00143
GnomAD2 exomes
AF:
0.000398
AC:
100
AN:
251418
AF XY:
0.000412
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00873
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000967
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000205
AC:
300
AN:
1461778
Hom.:
1
Cov.:
32
AF XY:
0.000210
AC XY:
153
AN XY:
727204
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33472
American (AMR)
AF:
0.00
AC:
0
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00850
AC:
222
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39684
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53412
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000369
AC:
41
AN:
1111940
Other (OTH)
AF:
0.000613
AC:
37
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.473
Heterozygous variant carriers
0
15
31
46
62
77
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.000309
AC:
47
AN:
152196
Hom.:
0
Cov.:
33
AF XY:
0.000256
AC XY:
19
AN XY:
74356
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41448
American (AMR)
AF:
0.00
AC:
0
AN:
15276
Ashkenazi Jewish (ASJ)
AF:
0.0112
AC:
39
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5200
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
68030
Other (OTH)
AF:
0.00143
AC:
3
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.509
Heterozygous variant carriers
0
3
5
8
10
13
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:
0.000492
Hom.:
2
Bravo
AF:
0.000264
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000465
AC:
4
ExAC
AF:
0.000239
AC:
29
EpiCase
AF:
0.000109
EpiControl
AF:
0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Deficiency of 2-methylbutyryl-CoA dehydrogenase Uncertain:2Benign:1
Aug 29, 2023
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:Uncertain significance
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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Oct 31, 2018
Fulgent Genetics, Fulgent Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Uncertain
0.078
D
BayesDel_noAF
Uncertain
0.080
CADD
Uncertain
23
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.68
.;D
Eigen
Uncertain
0.20
Eigen_PC
Benign
0.22
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Pathogenic
0.99
D;D
M_CAP
Uncertain
0.20
D
MetaRNN
Benign
0.019
T;T
MetaSVM
Uncertain
0.77
D
MutationAssessor
Benign
1.6
.;L
PhyloP100
6.1
PrimateAI
Uncertain
0.58
T
PROVEAN
Pathogenic
-4.9
D;D
REVEL
Pathogenic
0.73
Sift
Benign
0.059
T;T
Sift4G
Uncertain
0.058
T;T
Polyphen
0.47
.;P
Vest4
0.49
MVP
0.94
MPC
0.34
ClinPred
0.24
T
GERP RS
4.1
Varity_R
0.45
gMVP
0.94
Mutation Taster
=47/53
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs148640214; hg19: chr10-124812635; API