Variant chr11-112202056-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_031938.7(BCO2):c.1060G>A(p.Val354Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000435 in 1,609,886 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000032 ( 0 hom. )

Consequence

BCO2
NM_031938.7 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.0530

Variant links:

Genes affected

BCO2 (HGNC:18503): (beta-carotene oxygenase 2) This gene encodes an enzyme which oxidizes carotenoids such as beta-carotene during the biosynthesis of vitamin A. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2012]

BCO2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.022678256).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
BCO2	NM_031938.7 linkuse as main transcript	c.1060G>A	p.Val354Ile	missense_variant	8/12	ENST00000357685.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
BCO2	ENST00000357685.11 linkuse as main transcript	c.1060G>A	p.Val354Ile	missense_variant	8/12	1	NM_031938.7	P2	Q9BYV7-1

Frequencies

GnomAD3 genomes

AF:

0.000158

AC:

AN:

152086

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000531

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000687

AC:

AN:

247590

Hom.:

AF XY:

0.0000822

AC XY:

AN XY:

133854

show subpopulations

Gnomad AFR exome

AF:

0.000937

Gnomad AMR exome

AF:

0.0000595

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:

0.0000316

AC:

AN:

1457682

Hom.:

Cov.:

AF XY:

0.0000331

AC XY:

AN XY:

725090

show subpopulations

Gnomad4 AFR exome

AF:

0.00108

Gnomad4 AMR exome

AF:

0.0000227

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.000149

GnomAD4 genome

AF:

0.000158

AC:

AN:

152204

Hom.:

Cov.:

AF XY:

0.000202

AC XY:

AN XY:

74402

show subpopulations

Gnomad4 AFR

AF:

0.000530

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000418

Hom.:

Bravo

AF:

0.000280

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000576

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 15, 2021

The c.1060G>A (p.V354I) alteration is located in exon 8 (coding exon 8) of the BCO2 gene. This alteration results from a G to A substitution at nucleotide position 1060, causing the valine (V) at amino acid position 354 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.075

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.23

CADD

Benign

1.3

DANN

Benign

0.81

DEOGEN2

Benign

0.40

T;.;.;.;.;.

Eigen

Benign

-0.94

Eigen_PC

Benign

-0.91

FATHMM_MKL

Benign

0.069

LIST_S2

Benign

0.75

T;T;.;T;T;T

M_CAP

Benign

0.032

MetaRNN

Benign

0.023

T;T;T;T;T;T

MetaSVM

Benign

-0.34

MutationAssessor

Benign

0.060

N;.;.;.;.;.

MutationTaster

Benign

1.0

N;N;N;N;N;N;N

PrimateAI

Benign

0.25

PROVEAN

Benign

-0.15

N;N;N;N;N;N

REVEL

Benign

0.27

Sift

Benign

0.28

T;T;T;T;T;T

Sift4G

Benign

0.47

T;T;T;T;T;T

Polyphen

0.0010

B;.;.;.;.;.

Vest4

0.15

MVP

0.48

MPC

0.054

ClinPred

0.0091

GERP RS

-3.9

Varity_R

0.045

gMVP

0.38

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over