16-20669958-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001318890.3(ACSM1):​c.781G>A​(p.Asp261Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000018 in 1,613,670 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

ACSM1
NM_001318890.3 missense

Scores

3
8
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.607
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]

Genome browser will be placed here

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;
BP4
Computational evidence support a benign effect (MetaRNN=0.36438558).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ACSM1NM_001318890.3 linkuse as main transcriptc.781G>A p.Asp261Asn missense_variant 6/14 ENST00000520010.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ACSM1ENST00000520010.6 linkuse as main transcriptc.781G>A p.Asp261Asn missense_variant 6/141 NM_001318890.3 P1Q08AH1-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152056
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00115
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000478
AC:
12
AN:
250994
Hom.:
0
AF XY:
0.0000442
AC XY:
6
AN XY:
135644
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000870
Gnomad ASJ exome
AF:
0.000596
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000881
Gnomad OTH exome
AF:
0.000327
GnomAD4 exome
AF:
0.0000171
AC:
25
AN:
1461614
Hom.:
0
Cov.:
31
AF XY:
0.0000151
AC XY:
11
AN XY:
727100
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000134
Gnomad4 ASJ exome
AF:
0.000536
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000360
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152056
Hom.:
0
Cov.:
32
AF XY:
0.0000404
AC XY:
3
AN XY:
74270
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00115
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000113
Hom.:
0
Bravo
AF:
0.0000340
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000247
AC:
3

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 GeneticsOct 20, 2021The c.781G>A (p.D261N) alteration is located in exon 5 (coding exon 5) of the ACSM1 gene. This alteration results from a G to A substitution at nucleotide position 781, causing the aspartic acid (D) at amino acid position 261 to be replaced by an asparagine (N). 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
0.23
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Benign
-0.31
CADD
Benign
23
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.13
T;T
Eigen
Uncertain
0.53
Eigen_PC
Uncertain
0.38
FATHMM_MKL
Uncertain
0.84
D
LIST_S2
Benign
0.82
.;T
M_CAP
Benign
0.028
D
MetaRNN
Benign
0.36
T;T
MetaSVM
Uncertain
0.0085
D
MutationAssessor
Pathogenic
3.4
M;M
MutationTaster
Benign
0.99
D;D;D
PrimateAI
Uncertain
0.56
T
PROVEAN
Pathogenic
-4.6
D;D
REVEL
Uncertain
0.44
Sift
Uncertain
0.0090
D;D
Sift4G
Uncertain
0.015
D;D
Polyphen
1.0
D;D
Vest4
0.16
MVP
0.71
MPC
0.43
ClinPred
0.84
D
GERP RS
5.0
Varity_R
0.34
gMVP
0.64

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.10
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: rs374312430; hg19: chr16-20681280; COSMIC: COSV54638224; COSMIC: COSV54638224; API