Genetic Variant ACSL3:p.His254Leu (chr2-222919158-A-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

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

The NM_004457.5(ACSL3):c.761A>T(p.His254Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000186 in 1,614,160 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: 𝑓 0.0000066 ( 0 hom., cov: 29)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

ACSL3
NM_004457.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.74

Variant links:

Genes affected

ACSL3 (HGNC:3570): (acyl-CoA synthetase long chain family member 3) The protein encoded by this gene is an isozyme of the long-chain fatty-acid-coenzyme A ligase family. Although differing in substrate specificity, subcellular localization, and tissue distribution, all isozymes of this family convert free long-chain fatty acids into fatty acyl-CoA esters, and thereby play a key role in lipid biosynthesis and fatty acid degradation. This isozyme is highly expressed in brain, and preferentially utilizes myristate, arachidonate, and eicosapentaenoate as substrates. The amino acid sequence of this isozyme is 92% identical to that of rat homolog. Two transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Jul 2008]

ACSL3 links:

ACSL3-AS1 (HGNC:40227): (ACSL3 antisense RNA 1)

ACSL3-AS1 links:

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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=0.28586143).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ACSL3	NM_004457.5 link	c.761A>T	p.His254Leu	missense_variant	Exon 7 of 17	ENST00000357430.8	NP_004448.2	O95573A0A024R487

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ACSL3	ENST00000357430.8 link	c.761A>T	p.His254Leu	missense_variant	Exon 7 of 17	1	NM_004457.5	ENSP00000350012.3		O95573

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152200

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461842

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727228

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

8.99e-7

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152318

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74486

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 01, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.761A>T (p.H254L) alteration is located in exon 7 (coding exon 4) of the ACSL3 gene. This alteration results from a A to T substitution at nucleotide position 761, causing the histidine (H) at amino acid position 254 to be replaced by a leucine (L). 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

0.25

BayesDel_addAF

Uncertain

0.078

BayesDel_noAF

Benign

-0.13

CADD

Benign

DANN

Benign

0.91

DEOGEN2

Benign

0.055

T;T;T

Eigen

Benign

-0.20

Eigen_PC

Benign

0.013

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.84

.;T;T

M_CAP

Benign

0.023

MetaRNN

Benign

0.29

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.80

N;N;.

PrimateAI

Uncertain

0.67

PROVEAN

Benign

-1.2

N;N;N

REVEL

Benign

0.15

Sift

Benign

0.69

T;T;T

Sift4G

Benign

0.66

T;T;T

Polyphen

0.045

B;B;.

Vest4

0.65

MutPred

0.40

Loss of catalytic residue at M256 (P = 0.0588);Loss of catalytic residue at M256 (P = 0.0588);.;

MVP

0.51

MPC

0.55

ClinPred

0.84

GERP RS

5.7

Varity_R

0.47

gMVP

0.87

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over