chr12-109139686-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

4
15

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]

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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 in gene, where missense usually causes diseases (based on misZ statistic), ACACB. . Gene score misZ 1.5694 (greater than the threshold 3.09). Trascript score misZ 3.0917 (greater than threshold 3.09). GenCC has associacion of gene with isolated cleft palate.
BP4
Computational evidence support a benign effect (MetaRNN=0.08395225).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ACACBNM_001093.4 linkuse as main transcriptc.281C>T p.Pro94Leu missense_variant 2/53 ENST00000338432.12

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ACACBENST00000338432.12 linkuse as main transcriptc.281C>T p.Pro94Leu missense_variant 2/531 NM_001093.4 P1O00763-1
ACACBENST00000377848.7 linkuse as main transcriptc.281C>T p.Pro94Leu missense_variant 1/521 P1O00763-1
ACACBENST00000539864.1 linkuse as main transcriptc.206C>T p.Pro69Leu missense_variant 2/23
ACACBENST00000377854.9 linkuse as main transcriptc.-3722C>T 5_prime_UTR_variant 1/475

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251274
Hom.:
0
AF XY:
0.00
AC XY:
0
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:
5
AN:
1461804
Hom.:
0
Cov.:
30
AF XY:
0.00000275
AC XY:
2
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.:
32
Alfa
AF:
0.000111
Hom.:
0
ExAC
AF:
0.00000824
AC:
1

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 submitterclinical testingAmbry GeneticsJun 10, 2022The 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
T
BayesDel_noAF
Benign
-0.53
CADD
Benign
16
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.43
T;.;T
Eigen
Benign
-0.54
Eigen_PC
Benign
-0.48
FATHMM_MKL
Benign
0.044
N
LIST_S2
Benign
0.68
.;T;T
M_CAP
Benign
0.0058
T
MetaRNN
Benign
0.084
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.5
L;.;L
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.27
T
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
T
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.

Other links and lift over

dbSNP: rs767936750; hg19: chr12-109577491; COSMIC: COSV58134884; COSMIC: COSV58134884; API