16-20781024-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_005622.4(ACSM3):​c.833C>T​(p.Thr278Met) variant causes a missense change. The variant allele was found at a frequency of 0.000013 in 1,461,874 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

ACSM3
NM_005622.4 missense

Scores

7
7
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.36
Variant links:
Genes affected
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]
ERI2 (HGNC:30541): (ERI1 exoribonuclease family member 2) Predicted to enable 3'-5'-exoribonuclease activity. Predicted to be involved in exonucleolytic trimming to generate mature 3'-end of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA). [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ACSM3NM_005622.4 linkuse as main transcriptc.833C>T p.Thr278Met missense_variant 6/14 ENST00000289416.10 NP_005613.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ACSM3ENST00000289416.10 linkuse as main transcriptc.833C>T p.Thr278Met missense_variant 6/141 NM_005622.4 ENSP00000289416 P1Q53FZ2-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000199
AC:
5
AN:
251290
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135812
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.0000980
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000130
AC:
19
AN:
1461874
Hom.:
0
Cov.:
34
AF XY:
0.0000165
AC XY:
12
AN XY:
727238
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000447
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000812
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000809
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.0000113
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 05, 2023The c.833C>T (p.T278M) alteration is located in exon 6 (coding exon 5) of the ACSM3 gene. This alteration results from a C to T substitution at nucleotide position 833, causing the threonine (T) at amino acid position 278 to be replaced by a methionine (M). 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
Uncertain
0.13
D
BayesDel_noAF
Pathogenic
0.15
CADD
Pathogenic
27
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.27
T;.
Eigen
Pathogenic
0.87
Eigen_PC
Pathogenic
0.85
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.96
D;D
M_CAP
Benign
0.077
D
MetaRNN
Uncertain
0.68
D;D
MetaSVM
Benign
-0.49
T
MutationAssessor
Pathogenic
3.5
M;M
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Uncertain
0.70
T
PROVEAN
Pathogenic
-5.5
D;D
REVEL
Uncertain
0.46
Sift
Uncertain
0.014
D;D
Sift4G
Uncertain
0.018
D;D
Polyphen
1.0
D;D
Vest4
0.63
MutPred
0.55
Loss of methylation at K282 (P = 0.0741);Loss of methylation at K282 (P = 0.0741);
MVP
0.65
MPC
0.53
ClinPred
0.91
D
GERP RS
5.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.34
gMVP
0.53

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.090
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: rs755942547; hg19: chr16-20792346; COSMIC: COSV55499745; COSMIC: COSV55499745; API