16-20540726-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001105069.2(ACSM2B):​c.1557C>A​(p.Asp519Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,814 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 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: 0.0000021 ( 0 hom. )

Consequence

ACSM2B
NM_001105069.2 missense

Scores

5
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.417
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 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.19476873).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ACSM2BNM_001105069.2 linkuse as main transcriptc.1557C>A p.Asp519Glu missense_variant 13/14 ENST00000329697.10
ACSM2BNM_182617.4 linkuse as main transcriptc.1557C>A p.Asp519Glu missense_variant 14/15
ACSM2BNM_001410902.1 linkuse as main transcriptc.1320C>A p.Asp440Glu missense_variant 12/13

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ACSM2BENST00000329697.10 linkuse as main transcriptc.1557C>A p.Asp519Glu missense_variant 13/141 NM_001105069.2 P1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251484
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135916
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:
0.00
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461814
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
727208
show subpopulations
Gnomad4 AFR exome
AF:
0.0000597
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

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 GeneticsNov 27, 2023The c.1557C>A (p.D519E) alteration is located in exon 14 (coding exon 12) of the ACSM2B gene. This alteration results from a C to A substitution at nucleotide position 1557, causing the aspartic acid (D) at amino acid position 519 to be replaced by a glutamic acid (E). 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
0.18
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.55
CADD
Benign
19
DANN
Uncertain
1.0
DEOGEN2
Benign
0.071
T;T;.;T;T
Eigen
Benign
-0.40
Eigen_PC
Benign
-0.29
FATHMM_MKL
Uncertain
0.81
D
LIST_S2
Benign
0.51
.;T;T;.;.
M_CAP
Benign
0.0055
T
MetaRNN
Benign
0.19
T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.45
N;N;.;N;N
MutationTaster
Benign
0.80
N;N;N;N
PrimateAI
Uncertain
0.50
T
PROVEAN
Uncertain
-3.4
D;.;D;D;D
REVEL
Benign
0.038
Sift
Uncertain
0.0060
D;.;D;D;D
Sift4G
Benign
0.13
T;T;T;T;T
Polyphen
0.039
B;B;.;B;B
Vest4
0.31
MutPred
0.32
Gain of glycosylation at P520 (P = 0.0849);Gain of glycosylation at P520 (P = 0.0849);.;Gain of glycosylation at P520 (P = 0.0849);Gain of glycosylation at P520 (P = 0.0849);
MVP
0.59
MPC
0.28
ClinPred
0.72
D
GERP RS
3.4
Varity_R
0.27
gMVP
0.21

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: rs1476923493; hg19: chr16-20552048; API