chr16-89100709-C-T

Variant summary

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

The NM_001243279.3(ACSF3):​c.28C>T​(p.Arg10Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000219 in 1,601,370 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00015 ( 0 hom., cov: 36)
Exomes 𝑓: 0.00023 ( 0 hom. )

Consequence

ACSF3
NM_001243279.3 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts P:1U:3

Conservation

PhyloP100: 1.05
Variant links:
Genes affected
ACSF3 (HGNC:27288): (acyl-CoA synthetase family member 3) This gene encodes a member of the acyl-CoA synthetase family of enzymes that activate fatty acids by catalyzing the formation of a thioester linkage between fatty acids and coenzyme A. The encoded protein is localized to mitochondria, has high specificity for malonate and methylmalonate and possesses malonyl-CoA synthetase activity. Mutations in this gene are a cause of combined malonic and methylmalonic aciduria. Alternatively spliced transcript variants have been observed for this gene. [provided by RefSeq, Sep 2013]

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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=0.07289368).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ACSF3NM_001243279.3 linkuse as main transcriptc.28C>T p.Arg10Trp missense_variant 3/11 ENST00000614302.5 NP_001230208.1 Q4G176

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ACSF3ENST00000614302.5 linkuse as main transcriptc.28C>T p.Arg10Trp missense_variant 3/115 NM_001243279.3 ENSP00000479130.1 Q4G176

Frequencies

GnomAD3 genomes
AF:
0.000151
AC:
23
AN:
152236
Hom.:
0
Cov.:
36
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000218
AC:
51
AN:
233810
Hom.:
0
AF XY:
0.000248
AC XY:
32
AN XY:
128984
show subpopulations
Gnomad AFR exome
AF:
0.000208
Gnomad AMR exome
AF:
0.000117
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000656
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000382
Gnomad OTH exome
AF:
0.000170
GnomAD4 exome
AF:
0.000226
AC:
328
AN:
1449134
Hom.:
0
Cov.:
78
AF XY:
0.000231
AC XY:
167
AN XY:
721422
show subpopulations
Gnomad4 AFR exome
AF:
0.000120
Gnomad4 AMR exome
AF:
0.000134
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000580
Gnomad4 FIN exome
AF:
0.0000483
Gnomad4 NFE exome
AF:
0.000275
Gnomad4 OTH exome
AF:
0.0000829
GnomAD4 genome
AF:
0.000151
AC:
23
AN:
152236
Hom.:
0
Cov.:
36
AF XY:
0.000134
AC XY:
10
AN XY:
74372
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000315
Hom.:
0
Bravo
AF:
0.000155
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000235
AC:
2
ExAC
AF:
0.000199
AC:
24
EpiCase
AF:
0.000382
EpiControl
AF:
0.000474

ClinVar

Significance: Uncertain significance
Submissions summary: Pathogenic:1Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Combined malonic and methylmalonic acidemia Uncertain:2
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJul 12, 2022This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 10 of the ACSF3 protein (p.Arg10Trp). This variant is present in population databases (rs202182978, gnomAD 0.04%). This variant has not been reported in the literature in individuals affected with ACSF3-related conditions. ClinVar contains an entry for this variant (Variation ID: 203604). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The tryptophan amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Uncertain significance, criteria provided, single submitterclinical testingRevvity Omics, RevvityApr 30, 2020- -
not provided Pathogenic:1
Likely pathogenic, flagged submissionclinical testingCenter for Pediatric Genomic Medicine, Children's Mercy Hospital and ClinicsNov 10, 2014- -
not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingWomen's Health and Genetics/Laboratory Corporation of America, LabCorpMay 05, 2023Variant summary: ACSF3 c.28C>T (p.Arg10Trp) results in a non-conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.00022 in 233810 control chromosomes. This frequency is not significantly higher than estimated for a pathogenic variant in ACSF3 causing Combined Malonic And Methylmalonic Aciduria (0.00022 vs 0.0058), allowing no conclusion about variant significance. c.28C>T has been reported in the literature in one individual affected with Congenital diaphragmatic hernia (Qiao_2021). This report does not provide unequivocal conclusions about association of the variant with Combined Malonic And Methylmalonic Aciduria. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publication have been ascertained in the context of this evaluation (PMID: 34547244). Two clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. Both laboratories classified the variant as uncertain significance. Based on the evidence outlined above, the variant was classified as uncertain significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.093
BayesDel_addAF
Benign
-0.31
T
BayesDel_noAF
Benign
-0.37
CADD
Benign
17
DANN
Benign
0.97
DEOGEN2
Benign
0.080
T;T;T;T;.
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.21
N
LIST_S2
Benign
0.69
.;T;T;.;T
M_CAP
Benign
0.043
D
MetaRNN
Benign
0.073
T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.60
N;N;.;N;.
PrimateAI
Benign
0.33
T
PROVEAN
Benign
-1.2
N;.;N;N;N
REVEL
Benign
0.092
Sift
Benign
0.12
T;.;T;T;D
Sift4G
Benign
0.089
T;T;T;T;T
Polyphen
0.0020
B;B;.;B;.
Vest4
0.23
MVP
0.28
MPC
0.045
ClinPred
0.97
D
GERP RS
0.045
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.040
gMVP
0.59

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs202182978; hg19: chr16-89167117; API