chr16-20543163-G-A

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1PM2PP3_Moderate

The NM_001105069.2(ACSM2B):​c.1381C>T​(p.Arg461Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000127 in 1,613,784 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 Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R461Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

ACSM2B
NM_001105069.2 missense

Scores

7
5
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.00600
Variant links:
Genes affected
ACSM2B (HGNC:30931): (acyl-CoA synthetase medium chain family member 2B) Enables benzoate-CoA ligase activity. Predicted to be involved in acyl-CoA metabolic process and fatty acid biosynthetic process. Located in mitochondrion. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM1
In a binding_site (size 0) in uniprot entity ACS2B_HUMAN
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.87

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ACSM2BNM_001105069.2 linkuse as main transcriptc.1381C>T p.Arg461Trp missense_variant 11/14 ENST00000329697.10
ACSM2BNM_182617.4 linkuse as main transcriptc.1381C>T p.Arg461Trp missense_variant 12/15
ACSM2BNM_001410902.1 linkuse as main transcriptc.1144C>T p.Arg382Trp missense_variant 10/13
ACSM2BXR_001751899.3 linkuse as main transcript downstream_gene_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ACSM2BENST00000329697.10 linkuse as main transcriptc.1381C>T p.Arg461Trp missense_variant 11/141 NM_001105069.2 P1

Frequencies

GnomAD3 genomes
AF:
0.000178
AC:
27
AN:
152022
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000169
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000206
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000131
AC:
33
AN:
251170
Hom.:
0
AF XY:
0.000133
AC XY:
18
AN XY:
135734
show subpopulations
Gnomad AFR exome
AF:
0.000369
Gnomad AMR exome
AF:
0.000318
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000115
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000122
AC:
178
AN:
1461644
Hom.:
0
Cov.:
31
AF XY:
0.000118
AC XY:
86
AN XY:
727128
show subpopulations
Gnomad4 AFR exome
AF:
0.000299
Gnomad4 AMR exome
AF:
0.000380
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000124
Gnomad4 OTH exome
AF:
0.0000994
GnomAD4 genome
AF:
0.000177
AC:
27
AN:
152140
Hom.:
0
Cov.:
32
AF XY:
0.000161
AC XY:
12
AN XY:
74398
show subpopulations
Gnomad4 AFR
AF:
0.000169
Gnomad4 AMR
AF:
0.000327
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000206
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000237
Hom.:
0
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000173
AC:
21
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000533

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 24, 2022The c.1381C>T (p.R461W) alteration is located in exon 12 (coding exon 10) of the ACSM2B gene. This alteration results from a C to T substitution at nucleotide position 1381, causing the arginine (R) at amino acid position 461 to be replaced by a tryptophan (W). 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
Pathogenic
0.60
BayesDel_addAF
Uncertain
0.019
T
BayesDel_noAF
Uncertain
0.11
CADD
Uncertain
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.30
T;T;.;T;T
Eigen
Benign
-0.12
Eigen_PC
Benign
-0.48
FATHMM_MKL
Benign
0.029
N
LIST_S2
Pathogenic
0.98
.;D;D;.;.
M_CAP
Benign
0.011
T
MetaRNN
Pathogenic
0.87
D;D;D;D;D
MetaSVM
Uncertain
-0.079
T
MutationAssessor
Pathogenic
4.1
H;H;.;H;H
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Benign
0.44
T
PROVEAN
Pathogenic
-7.0
D;.;D;D;D
REVEL
Uncertain
0.54
Sift
Pathogenic
0.0
D;.;D;D;D
Sift4G
Pathogenic
0.0
D;D;D;D;D
Polyphen
1.0
D;D;.;D;D
Vest4
0.73
MVP
0.73
MPC
0.79
ClinPred
0.58
D
GERP RS
-0.68
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.94
gMVP
0.89

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.19
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: rs143500332; hg19: chr16-20554485; COSMIC: COSV61657473; COSMIC: COSV61657473; API