Variant 11-112200718-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.971G>A(p.Ser324Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000187 in 1,614,010 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00036 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00017 ( 0 hom. )

Consequence

BCO2
NM_031938.7 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.56

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=0.02409485).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
BCO2	NM_031938.7 linkuse as main transcript	c.971G>A	p.Ser324Asn	missense_variant	7/12	ENST00000357685.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
BCO2	ENST00000357685.11 linkuse as main transcript	c.971G>A	p.Ser324Asn	missense_variant	7/12	1	NM_031938.7	P2	Q9BYV7-1

Frequencies

GnomAD3 genomes

AF:

0.000361

AC:

AN:

152184

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00229

Gnomad ASJ

AF:

0.00202

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000176

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000287

AC:

AN:

251148

Hom.:

AF XY:

0.000302

AC XY:

AN XY:

135768

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000349

Gnomad ASJ exome

AF:

0.00417

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000114

Gnomad OTH exome

AF:

0.000817

GnomAD4 exome

AF:

0.000169

AC:

247

AN:

1461708

Hom.:

Cov.:

AF XY:

0.000169

AC XY:

123

AN XY:

727170

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000448

Gnomad4 ASJ exome

AF:

0.00390

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000845

Gnomad4 OTH exome

AF:

0.000513

GnomAD4 genome

AF:

0.000361

AC:

AN:

152302

Hom.:

Cov.:

AF XY:

0.000336

AC XY:

AN XY:

74474

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00229

Gnomad4 ASJ

AF:

0.00202

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000176

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000274

Hom.:

Bravo

AF:

0.000661

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000465

AC:

ExAC

AF:

0.000181

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

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

Aug 16, 2022

The c.971G>A (p.S324N) alteration is located in exon 7 (coding exon 7) of the BCO2 gene. This alteration results from a G to A substitution at nucleotide position 971, causing the serine (S) at amino acid position 324 to be replaced by an asparagine (N). 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

0.11

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.24

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.49

T;.;.;.;.;.

Eigen

Benign

-0.14

Eigen_PC

Benign

0.014

FATHMM_MKL

Benign

0.72

LIST_S2

Benign

0.76

T;T;.;T;T;T

M_CAP

Benign

0.048

MetaRNN

Benign

0.024

T;T;T;T;T;T

MetaSVM

Uncertain

-0.082

MutationAssessor

Benign

1.9

L;.;.;.;.;.

MutationTaster

Benign

0.98

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

PrimateAI

Benign

0.37

PROVEAN

Benign

-1.3

N;N;N;N;N;N

REVEL

Benign

0.19

Sift

Benign

0.19

T;T;T;T;T;T

Sift4G

Benign

0.38

T;T;T;T;T;T

Polyphen

0.031

B;.;.;.;.;.

Vest4

0.087

MVP

0.75

MPC

0.060

ClinPred

0.029

GERP RS

4.6

Varity_R

0.19

gMVP

0.28

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