2-74135676-A-C

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_212552.3(BOLA3):​c.259-18T>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000699 in 1,559,950 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0033 ( 2 hom., cov: 32)
Exomes 𝑓: 0.00041 ( 0 hom. )

Consequence

BOLA3
NM_212552.3 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 0.223
Variant links:
Genes affected
BOLA3 (HGNC:24415): (bolA family member 3) This gene encodes a protein that plays an essential role in the production of iron-sulfur (Fe-S) clusters for the normal maturation of lipoate-containing 2-oxoacid dehydrogenases, and for the assembly of the mitochondrial respiratory chain complexes. Mutation in this gene has been associated with multiple mitochondrial dysfunctions syndrome-2. Two alternatively spliced transcript variants encoding different isoforms with distinct subcellular localization have been reported for this gene (PMID:21944046). [provided by RefSeq, Dec 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.77).
BP6
Variant 2-74135676-A-C is Benign according to our data. Variant chr2-74135676-A-C is described in ClinVar as [Benign]. Clinvar id is 136530.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
BOLA3NM_212552.3 linkuse as main transcriptc.259-18T>G intron_variant ENST00000327428.10 NP_997717.2
BOLA3NM_001035505.2 linkuse as main transcriptc.170-18T>G intron_variant NP_001030582.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
BOLA3ENST00000327428.10 linkuse as main transcriptc.259-18T>G intron_variant 1 NM_212552.3 ENSP00000331369 P1Q53S33-1
ENST00000652224.1 linkuse as main transcript downstream_gene_variant

Frequencies

GnomAD3 genomes
AF:
0.00335
AC:
510
AN:
152190
Hom.:
2
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0115
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00170
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:
0.0000588
Gnomad OTH
AF:
0.00239
GnomAD3 exomes
AF:
0.000903
AC:
227
AN:
251270
Hom.:
0
AF XY:
0.000714
AC XY:
97
AN XY:
135830
show subpopulations
Gnomad AFR exome
AF:
0.0117
Gnomad AMR exome
AF:
0.000694
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000880
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.000412
AC:
580
AN:
1407642
Hom.:
0
Cov.:
24
AF XY:
0.000369
AC XY:
260
AN XY:
703660
show subpopulations
Gnomad4 AFR exome
AF:
0.0139
Gnomad4 AMR exome
AF:
0.000896
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000235
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000282
Gnomad4 OTH exome
AF:
0.000923
GnomAD4 genome
AF:
0.00335
AC:
510
AN:
152308
Hom.:
2
Cov.:
32
AF XY:
0.00332
AC XY:
247
AN XY:
74476
show subpopulations
Gnomad4 AFR
AF:
0.0114
Gnomad4 AMR
AF:
0.00170
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00236
Alfa
AF:
0.00150
Hom.:
0
Bravo
AF:
0.00386
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 22, 2024- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxMar 19, 2014This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.77
CADD
Benign
5.4
DANN
Benign
0.74

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
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: rs142868057; hg19: chr2-74362803; API