rs386833857

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3PP5

The NM_001079866.2(BCS1L):​c.431G>A​(p.Arg144Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000558 in 1,614,100 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (no stars).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

BCS1L
NM_001079866.2 missense

Scores

6
10
3

Clinical Significance

Likely pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 9.75
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.817
PP5
Variant 2-218661516-G-A is Pathogenic according to our data. Variant chr2-218661516-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 56413.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr2-218661516-G-A is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
BCS1LNM_001079866.2 linkuse as main transcriptc.431G>A p.Arg144Gln missense_variant 3/8 ENST00000359273.8 NP_001073335.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
BCS1LENST00000359273.8 linkuse as main transcriptc.431G>A p.Arg144Gln missense_variant 3/81 NM_001079866.2 ENSP00000352219 P1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152216
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251464
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135908
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000479
AC:
7
AN:
1461884
Hom.:
0
Cov.:
33
AF XY:
0.00000825
AC XY:
6
AN XY:
727244
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:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000360
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152216
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74368
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000971
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

GRACILE syndrome Pathogenic:1
Likely pathogenic, no assertion criteria providedliterature onlyJuha Muilu Group; Institute for Molecular Medicine Finland (FIMM)-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.16
BayesDel_addAF
Pathogenic
0.40
D
BayesDel_noAF
Pathogenic
0.52
CADD
Pathogenic
32
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.61
D;D;.;D;D;D;D;D;D;D;.
Eigen
Uncertain
0.48
Eigen_PC
Uncertain
0.55
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.95
.;D;D;.;.;.;.;.;.;D;D
M_CAP
Uncertain
0.11
D
MetaRNN
Pathogenic
0.82
D;D;D;D;D;D;D;D;D;D;D
MetaSVM
Pathogenic
0.82
D
MutationAssessor
Uncertain
2.8
.;.;.;M;M;M;M;M;M;M;.
MutationTaster
Benign
1.0
D;D;D;D;D;D;D
PrimateAI
Uncertain
0.55
T
PROVEAN
Uncertain
-2.5
N;N;N;N;N;N;N;N;N;N;.
REVEL
Pathogenic
0.73
Sift
Uncertain
0.0060
D;D;D;D;D;D;D;D;D;D;.
Sift4G
Benign
0.096
T;T;T;T;T;T;T;T;T;T;.
Polyphen
0.71
.;.;.;P;P;P;P;P;P;P;.
Vest4
0.94, 0.93, 0.94, 0.94
MVP
0.98
MPC
1.1
ClinPred
0.88
D
GERP RS
5.3
Varity_R
0.61
gMVP
0.76

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.29
Details are displayed if max score is > 0.2
DS_DG_spliceai
0.29
Position offset: 4

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: rs386833857; hg19: chr2-219526239; COSMIC: COSV55305887; COSMIC: COSV55305887; API