dbSNP rs796052702: LIAS:p.Arg98Arg (chr4-39462269-C-A) – ACMG Classification: Likely_benign (-3 pts)

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2BP4_ModerateBP6_ModerateBP7

The NM_006859.4(LIAS):c.292C>A(p.Arg98Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

LIAS
NM_006859.4 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.778

Publications

0 publications found

Variant links:

Genes affected

LIAS (HGNC:16429): (lipoic acid synthetase) The protein encoded by this gene belongs to the biotin and lipoic acid synthetases family. Localized in the mitochondrion, this iron-sulfur enzyme catalyzes the final step in the de novo pathway for the biosynthesis of lipoic acid, a potent antioxidant. The deficient expression of this enzyme has been linked to conditions such as diabetes, atherosclerosis and neonatal-onset epilepsy. Alternative splicing occurs at this locus, and several transcript variants encoding distinct isoforms have been identified. [provided by RefSeq, Aug 2020]

LIAS Gene-Disease associations (from GenCC):

lipoic acid synthetase deficiency
Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), G2P
Leigh syndrome
Inheritance: AR Classification: LIMITED Submitted by: ClinGen

LIAS links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.21).

BP6

Variant 4-39462269-C-A is Benign according to our data. Variant chr4-39462269-C-A is described in ClinVar as Likely_benign. ClinVar VariationId is 2746571.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=0.778 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LIAS	NM_006859.4 link	c.292C>A	p.Arg98Arg	synonymous_variant	Exon 3 of 11	ENST00000640888.2	NP_006850.2	O43766-1A0A024R9W0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LIAS	ENST00000640888.2 link	c.292C>A	p.Arg98Arg	synonymous_variant	Exon 3 of 11	1	NM_006859.4	ENSP00000492260.1		O43766-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Data not reliable, filtered out with message: AC0;AS_VQSR

AF:

0.00

AC:

AN:

1404200

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

698588

African (AFR)

AF:

0.00

AC:

AN:

30278

American (AMR)

AF:

0.00

AC:

AN:

37258

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25048

East Asian (EAS)

AF:

0.00

AC:

AN:

35136

South Asian (SAS)

AF:

0.00

AC:

AN:

78424

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52326

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5518

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1082296

Other (OTH)

AF:

0.00

AC:

AN:

57916

GnomAD4 genome

Cov.:

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Lipoic acid synthetase deficiency

Benign:1

Jul 25, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.21

CADD

Benign

(source)

DANN

Benign

0.75

PhyloP100

0.78

PromoterAI

0.0012

Neutral

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.11

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over