2-218660859-A-G

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_001079866.2(BCS1L):​c.-49-80A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.997 in 1,023,336 control chromosomes in the GnomAD database, including 509,042 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.99 ( 74618 hom., cov: 32)
Exomes 𝑓: 1.0 ( 434424 hom. )

Consequence

BCS1L
NM_001079866.2 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.389
Variant links:
Genes affected
BCS1L (HGNC:1020): (BCS1 homolog, ubiquinol-cytochrome c reductase complex chaperone) This gene encodes a homolog of the S. cerevisiae bcs1 protein which is involved in the assembly of complex III of the mitochondrial respiratory chain. The encoded protein does not contain a mitochondrial targeting sequence but experimental studies confirm that it is imported into mitochondria. Mutations in this gene are associated with mitochondrial complex III deficiency and the GRACILE syndrome. Several alternatively spliced transcripts encoding two different isoforms have been described. [provided by RefSeq, Jan 2016]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.9).
BP6
Variant 2-218660859-A-G is Benign according to our data. Variant chr2-218660859-A-G is described in ClinVar as [Benign]. Clinvar id is 1179749.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.994 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
BCS1LNM_001079866.2 linkuse as main transcriptc.-49-80A>G intron_variant ENST00000359273.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
BCS1LENST00000359273.8 linkuse as main transcriptc.-49-80A>G intron_variant 1 NM_001079866.2 P1

Frequencies

GnomAD3 genomes
AF:
0.990
AC:
150655
AN:
152220
Hom.:
74575
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.964
Gnomad AMI
AF:
1.00
Gnomad AMR
AF:
0.996
Gnomad ASJ
AF:
1.00
Gnomad EAS
AF:
1.00
Gnomad SAS
AF:
1.00
Gnomad FIN
AF:
1.00
Gnomad MID
AF:
1.00
Gnomad NFE
AF:
1.00
Gnomad OTH
AF:
0.995
GnomAD4 exome
AF:
0.999
AC:
869898
AN:
870998
Hom.:
434424
Cov.:
11
AF XY:
0.999
AC XY:
449136
AN XY:
449616
show subpopulations
Gnomad4 AFR exome
AF:
0.965
Gnomad4 AMR exome
AF:
0.998
Gnomad4 ASJ exome
AF:
1.00
Gnomad4 EAS exome
AF:
1.00
Gnomad4 SAS exome
AF:
1.00
Gnomad4 FIN exome
AF:
1.00
Gnomad4 NFE exome
AF:
1.00
Gnomad4 OTH exome
AF:
0.997
GnomAD4 genome
AF:
0.990
AC:
150757
AN:
152338
Hom.:
74618
Cov.:
32
AF XY:
0.990
AC XY:
73760
AN XY:
74498
show subpopulations
Gnomad4 AFR
AF:
0.964
Gnomad4 AMR
AF:
0.996
Gnomad4 ASJ
AF:
1.00
Gnomad4 EAS
AF:
1.00
Gnomad4 SAS
AF:
1.00
Gnomad4 FIN
AF:
1.00
Gnomad4 NFE
AF:
1.00
Gnomad4 OTH
AF:
0.995
Alfa
AF:
0.993
Hom.:
10022
Bravo
AF:
0.989
Asia WGS
AF:
0.996
AC:
3462
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxJun 23, 2018- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.90
CADD
Benign
1.4
DANN
Benign
0.57
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

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: rs6722185; hg19: chr2-219525582; API