12-109139686-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2PP2BP4_Moderate

The NM_001093.4(ACACB):c.281C>T(p.Pro94Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,804 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

ACACB
NM_001093.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.478

Variant links:

Genes affected

ACACB (HGNC:85): (acetyl-CoA carboxylase beta) Acetyl-CoA carboxylase (ACC) is a complex multifunctional enzyme system. ACC is a biotin-containing enzyme which catalyzes the carboxylation of acetyl-CoA to malonyl-CoA, the rate-limiting step in fatty acid synthesis. ACC-beta is thought to control fatty acid oxidation by means of the ability of malonyl-CoA to inhibit carnitine-palmitoyl-CoA transferase I, the rate-limiting step in fatty acid uptake and oxidation by mitochondria. ACC-beta may be involved in the regulation of fatty acid oxidation, rather than fatty acid biosynthesis. [provided by RefSeq, Oct 2022]

ACACB links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant where missense usually causes diseases, ACACB

BP4

Computational evidence support a benign effect (MetaRNN=0.08395225).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ACACB	NM_001093.4 linkuse as main transcript	c.281C>T	p.Pro94Leu	missense_variant	2/53	ENST00000338432.12

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ACACB	ENST00000338432.12 linkuse as main transcript	c.281C>T	p.Pro94Leu	missense_variant	2/53	1	NM_001093.4	P1	O00763-1
ACACB	ENST00000377848.7 linkuse as main transcript	c.281C>T	p.Pro94Leu	missense_variant	1/52	1		P1	O00763-1
ACACB	ENST00000539864.1 linkuse as main transcript	c.206C>T	p.Pro69Leu	missense_variant	2/2	3
ACACB	ENST00000377854.9 linkuse as main transcript	c.-3722C>T		5_prime_UTR_variant	1/47	5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251274

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135806

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.0000993

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:

0.00000342

AC:

AN:

1461804

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727186

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.0000765

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000348

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.000111

Hom.:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 10, 2022

The c.281C>T (p.P94L) alteration is located in exon 1 (coding exon 1) of the ACACB gene. This alteration results from a C to T substitution at nucleotide position 281, causing the proline (P) at amino acid position 94 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.071

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.53

Cadd

Benign

Dann

Uncertain

0.99

DEOGEN2

Uncertain

0.43

T;.;T

Eigen

Benign

-0.54

Eigen_PC

Benign

-0.48

FATHMM_MKL

Benign

0.044

M_CAP

Benign

0.0058

MetaRNN

Benign

0.084

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.5

L;.;L

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.27

PROVEAN

Benign

-1.4

N;D;N

REVEL

Benign

0.060

Sift

Uncertain

0.0080

D;D;D

Sift4G

Uncertain

0.010

D;D;D

Polyphen

0.041

B;.;B

Vest4

0.077

MutPred

0.30

Gain of catalytic residue at P99 (P = 0.0028);.;Gain of catalytic residue at P99 (P = 0.0028);

MVP

0.16

MPC

0.24

ClinPred

0.34

GERP RS

4.6

Varity_R

0.042

gMVP

0.15

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