rs750744754

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_006859.4(LIAS):​c.737+9G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000119 in 1,533,670 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 Likely benign (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

LIAS
NM_006859.4 intron

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -2.41
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.82).
BP6
Variant 4-39467655-G-A is Benign according to our data. Variant chr4-39467655-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 472882.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
LIASNM_006859.4 linkuse as main transcriptc.737+9G>A intron_variant ENST00000640888.2 NP_006850.2
LIASNM_001278590.2 linkuse as main transcriptc.608+2313G>A intron_variant NP_001265519.1
LIASNM_001363700.2 linkuse as main transcriptc.428+9G>A intron_variant NP_001350629.1
LIASNM_194451.3 linkuse as main transcriptc.737+9G>A intron_variant NP_919433.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
LIASENST00000640888.2 linkuse as main transcriptc.737+9G>A intron_variant 1 NM_006859.4 ENSP00000492260 P1O43766-1

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152156
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000730
AC:
16
AN:
219072
Hom.:
0
AF XY:
0.0000920
AC XY:
11
AN XY:
119518
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000401
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000123
Gnomad FIN exome
AF:
0.0000479
Gnomad NFE exome
AF:
0.0000956
Gnomad OTH exome
AF:
0.000195
GnomAD4 exome
AF:
0.000127
AC:
176
AN:
1381514
Hom.:
0
Cov.:
30
AF XY:
0.000126
AC XY:
86
AN XY:
684414
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000281
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000807
Gnomad4 FIN exome
AF:
0.0000394
Gnomad4 NFE exome
AF:
0.000153
Gnomad4 OTH exome
AF:
0.0000713
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152156
Hom.:
0
Cov.:
32
AF XY:
0.0000404
AC XY:
3
AN XY:
74334
show subpopulations
Gnomad4 AFR
AF:
0.0000241
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:
0.0000735
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000227

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Lipoic acid synthetase deficiency Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpNov 08, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.82
CADD
Benign
0.0030
DANN
Benign
0.79

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.

Other links and lift over

dbSNP: rs750744754; hg19: chr4-39469275; API