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GeneBe

16-20627270-T-C

Variant summary

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

The NM_001318890.3(ACSM1):ā€‹c.1346A>Gā€‹(p.Asn449Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000667 in 1,587,462 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.00040 ( 0 hom., cov: 31)
Exomes š‘“: 0.00070 ( 0 hom. )

Consequence

ACSM1
NM_001318890.3 missense

Scores

3
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.99
Variant links:
Genes affected
ACSM1 (HGNC:18049): (acyl-CoA synthetase medium chain family member 1) Enables CoA-ligase activity. Predicted to be involved in acyl-CoA metabolic process and fatty acid biosynthetic process. Located in mitochondrial matrix. [provided by Alliance of Genome Resources, Apr 2022]
ACSM3 (HGNC:10522): (acyl-CoA synthetase medium chain family member 3) Enables butyrate-CoA ligase activity. Predicted to be involved in acyl-CoA metabolic process and fatty acid biosynthetic process. Located in mitochondrion. Implicated in IgA glomerulonephritis. Biomarker of ulcerative colitis. [provided by Alliance of Genome Resources, Apr 2022]

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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=0.22359857).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ACSM1NM_001318890.3 linkuse as main transcriptc.1346A>G p.Asn449Ser missense_variant 11/14 ENST00000520010.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ACSM1ENST00000520010.6 linkuse as main transcriptc.1346A>G p.Asn449Ser missense_variant 11/141 NM_001318890.3 P1Q08AH1-1

Frequencies

GnomAD3 genomes
AF:
0.000401
AC:
61
AN:
152108
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.000145
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000208
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000765
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000379
AC:
88
AN:
232364
Hom.:
0
AF XY:
0.000389
AC XY:
49
AN XY:
125988
show subpopulations
Gnomad AFR exome
AF:
0.000206
Gnomad AMR exome
AF:
0.0000985
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000111
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000709
Gnomad OTH exome
AF:
0.000364
GnomAD4 exome
AF:
0.000695
AC:
998
AN:
1435354
Hom.:
0
Cov.:
32
AF XY:
0.000677
AC XY:
483
AN XY:
713096
show subpopulations
Gnomad4 AFR exome
AF:
0.000156
Gnomad4 AMR exome
AF:
0.0000488
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000867
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000858
Gnomad4 OTH exome
AF:
0.000639
GnomAD4 genome
AF:
0.000401
AC:
61
AN:
152108
Hom.:
0
Cov.:
31
AF XY:
0.000471
AC XY:
35
AN XY:
74304
show subpopulations
Gnomad4 AFR
AF:
0.000145
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000208
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000765
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000691
Hom.:
0
Bravo
AF:
0.000340
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00104
AC:
4
ESP6500AA
AF:
0.000454
AC:
2
ESP6500EA
AF:
0.00116
AC:
10
ExAC
AF:
0.000346
AC:
42

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 02, 2021The c.1346A>G (p.N449S) alteration is located in exon 10 (coding exon 10) of the ACSM1 gene. This alteration results from a A to G substitution at nucleotide position 1346, causing the asparagine (N) at amino acid position 449 to be replaced by a serine (S). 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
0.12
BayesDel_addAF
Benign
-0.45
T
BayesDel_noAF
Benign
-0.52
CADD
Benign
18
DANN
Uncertain
0.98
DEOGEN2
Benign
0.0089
T;T
Eigen
Benign
-0.071
Eigen_PC
Benign
-0.075
FATHMM_MKL
Benign
0.58
D
M_CAP
Benign
0.0096
T
MetaRNN
Benign
0.22
T;T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
0.95
N;N;N
PrimateAI
Uncertain
0.51
T
PROVEAN
Benign
-0.48
N;N
REVEL
Benign
0.18
Sift
Uncertain
0.019
D;D
Sift4G
Benign
0.25
T;T
Polyphen
0.98
D;D
Vest4
0.18
MVP
0.66
MPC
0.38
ClinPred
0.066
T
GERP RS
3.0
Varity_R
0.084
gMVP
0.29

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: rs148084363; hg19: chr16-20638592; COSMIC: COSV99533005; API