16-20555450-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM1PM2PP3

The NM_001105069.2(ACSM2B):​c.415C>A​(p.Gln139Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000684 in 1,461,266 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 (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.000068 ( 0 hom. )

Consequence

ACSM2B
NM_001105069.2 missense

Scores

2
8
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.83
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 Uncertain_significance. Variant got 5 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, 0.775

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ACSM2BNM_001105069.2 linkuse as main transcriptc.415C>A p.Gln139Lys missense_variant 4/14 ENST00000329697.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ACSM2BENST00000329697.10 linkuse as main transcriptc.415C>A p.Gln139Lys missense_variant 4/141 NM_001105069.2 P1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000200
AC:
5
AN:
250440
Hom.:
0
AF XY:
0.0000222
AC XY:
3
AN XY:
135386
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:
0.0000354
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.0000684
AC:
100
AN:
1461266
Hom.:
0
Cov.:
32
AF XY:
0.0000702
AC XY:
51
AN XY:
726864
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:
0.0000873
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000868
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.0000165
AC:
2

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 GeneticsAug 24, 2022The c.415C>A (p.Q139K) alteration is located in exon 5 (coding exon 3) of the ACSM2B gene. This alteration results from a C to A substitution at nucleotide position 415, causing the glutamine (Q) at amino acid position 139 to be replaced by a lysine (K). 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
0.21
BayesDel_addAF
Benign
-0.10
T
BayesDel_noAF
Benign
-0.28
CADD
Benign
23
DANN
Uncertain
0.99
DEOGEN2
Benign
0.065
T;T;.;T;T;T
Eigen
Uncertain
0.39
Eigen_PC
Uncertain
0.28
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Uncertain
0.88
.;D;D;.;.;T
M_CAP
Benign
0.0067
T
MetaRNN
Pathogenic
0.77
D;D;D;D;D;D
MetaSVM
Benign
-0.68
T
MutationAssessor
Pathogenic
3.1
M;M;.;M;M;.
MutationTaster
Benign
0.98
D;D;D;D;N
PrimateAI
Benign
0.42
T
PROVEAN
Uncertain
-3.7
D;D;D;D;D;D
REVEL
Benign
0.26
Sift
Uncertain
0.0020
D;D;D;D;D;D
Sift4G
Uncertain
0.019
D;D;D;D;D;.
Polyphen
0.99
D;D;.;D;D;.
Vest4
0.45
MutPred
0.69
Gain of MoRF binding (P = 0.0473);Gain of MoRF binding (P = 0.0473);.;Gain of MoRF binding (P = 0.0473);Gain of MoRF binding (P = 0.0473);.;
MVP
0.66
MPC
2.3
ClinPred
0.94
D
GERP RS
3.0
Varity_R
0.65
gMVP
0.48

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs771105536; hg19: chr16-20566772; API