rs57339164

Positions:

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001609.4(ACADSB):c.1014C>G(p.His338Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000242 in 1,611,912 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

ACADSB
NM_001609.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -3.24

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.061670393).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ACADSB	NM_001609.4 linkuse as main transcript	c.1014C>G	p.His338Gln	missense_variant	9/11	ENST00000358776.7	NP_001600.1
ACADSB	NM_001330174.3 linkuse as main transcript	c.708C>G	p.His236Gln	missense_variant	8/10		NP_001317103.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ACADSB	ENST00000358776.7 linkuse as main transcript	c.1014C>G	p.His338Gln	missense_variant	9/11	1	NM_001609.4	ENSP00000357873	P1	P45954-1
ACADSB	ENST00000368869.8 linkuse as main transcript	c.708C>G	p.His236Gln	missense_variant	8/10	2		ENSP00000357862		P45954-2

Frequencies

GnomAD3 genomes

AF:

0.00000659

AC:

AN:

151788

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

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:

0.00000399

AC:

AN:

250854

Hom.:

AF XY:

0.00000738

AC XY:

AN XY:

135572

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:

0.00000881

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000260

AC:

AN:

1460124

Hom.:

Cov.:

AF XY:

0.0000275

AC XY:

AN XY:

726348

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:

0.0000324

Gnomad4 OTH exome

AF:

0.0000332

GnomAD4 genome

AF:

0.00000659

AC:

AN:

151788

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74104

show subpopulations

Gnomad4 AFR

AF:

0.0000242

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

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Deficiency of 2-methylbutyryl-CoA dehydrogenase

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Aug 26, 2020

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The glutamine amino acid residue is found in multiple mammalian species, suggesting that this missense change does not adversely affect protein function. These predictions have not been confirmed by published functional studies and their clinical significance is uncertain. This variant has not been reported in the literature in individuals with ACADSB-related conditions. This sequence change replaces histidine with glutamine at codon 338 of the ACADSB protein (p.His338Gln). The histidine residue is weakly conserved and there is a small physicochemical difference between histidine and glutamine. This variant is present in population databases (rs57339164, ExAC 0.002%). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.081

BayesDel_addAF

Benign

-0.056

BayesDel_noAF

Benign

-0.32

CADD

Benign

0.0020

DANN

Benign

0.61

DEOGEN2

Benign

0.33

.;T

Eigen

Benign

-1.7

Eigen_PC

Benign

-1.7

FATHMM_MKL

Benign

0.040

LIST_S2

Benign

0.80

T;T

M_CAP

Uncertain

0.16

MetaRNN

Benign

0.062

T;T

MetaSVM

Uncertain

-0.20

MutationAssessor

Benign

-1.7

.;N

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.37

PROVEAN

Benign

0.60

N;N

REVEL

Benign

0.25

Sift

Benign

0.70

T;T

Sift4G

Benign

0.52

T;T

Polyphen

0.0010

.;B

Vest4

0.17

MutPred

0.61

.;Gain of relative solvent accessibility (P = 0.2629);

MVP

0.61

MPC

0.056

ClinPred

0.032

GERP RS

-10

Varity_R

0.12

gMVP

0.77

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over