Genetic Variant BCOR:p.Ile1679Met (chrX-40052340-T-C) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_001123385.2(BCOR):c.5037A>G(p.Ile1679Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000893 in 112,031 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I1679L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000089 ( 0 hom., 0 hem., cov: 23)

Consequence

BCOR
NM_001123385.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.0180

Publications

0 publications found

Variant links:

Genes affected

BCOR (HGNC:20893): (BCL6 corepressor) The protein encoded by this gene was identified as an interacting corepressor of BCL6, a POZ/zinc finger transcription repressor that is required for germinal center formation and may influence apoptosis. This protein selectively interacts with the POZ domain of BCL6, but not with eight other POZ proteins. Specific class I and II histone deacetylases (HDACs) have been shown to interact with this protein, which suggests a possible link between the two classes of HDACs. Several transcript variants encoding different isoforms have been found for this gene. A pseudogene of this gene is found on chromosome Y.[provided by RefSeq, Jun 2010]

BCOR Gene-Disease associations (from GenCC):

microphthalmia, syndromic 2
Inheritance: XL, Unknown Classification: DEFINITIVE, STRONG, SUPPORTIVE, LIMITED Submitted by: Ambry Genetics, ClinGen, Illumina, Orphanet, Labcorp Genetics (formerly Invitae), G2P
microphthalmia, Lenz type
Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet

BCOR links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.31160164).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BCOR	NM_001123385.2 link	c.5037A>G	p.Ile1679Met	missense_variant	Exon 15 of 15	ENST00000378444.9	NP_001116857.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BCOR	ENST00000378444.9 link	c.5037A>G	p.Ile1679Met	missense_variant	Exon 15 of 15	1	NM_001123385.2	ENSP00000367705.4

Frequencies

GnomAD3 genomes

AF:

0.00000893

AC:

AN:

112031

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000368

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000545

AC:

AN:

183469

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

AF:

0.00000893

AC:

AN:

112031

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

34189

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

30830

American (AMR)

AF:

0.00

AC:

AN:

10555

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

2656

East Asian (EAS)

AF:

0.00

AC:

AN:

3596

South Asian (SAS)

AF:

0.000368

AC:

AN:

2720

European-Finnish (FIN)

AF:

0.00

AC:

AN:

6012

Middle Eastern (MID)

AF:

0.00

AC:

AN:

240

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

53234

Other (OTH)

AF:

0.00

AC:

AN:

1503

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.56

BayesDel_addAF

Benign

-0.047

BayesDel_noAF

Benign

-0.15

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.092

.;T;.;.;T;.

FATHMM_MKL

Uncertain

0.80

LIST_S2

Uncertain

0.93

D;D;.;D;D;D

M_CAP

Benign

0.076

MetaRNN

Benign

0.31

T;T;T;T;T;T

MetaSVM

Uncertain

0.050

MutationAssessor

Uncertain

2.5

.;.;.;.;M;.

PhyloP100

-0.018

PrimateAI

Uncertain

0.59

PROVEAN

Benign

-2.1

N;N;N;N;N;N

REVEL

Benign

0.24

Sift

Uncertain

0.0020

D;D;D;D;D;D

Sift4G

Uncertain

0.014

D;D;D;D;D;D

Polyphen

1.0, 1.0

.;.;D;D;D;D

Vest4

0.56, 0.66, 0.49, 0.47, 0.63

MutPred

0.46

.;.;.;.;Gain of disorder (P = 0.0662);.;

MVP

0.89

MPC

0.94

ClinPred

0.64

GERP RS

1.4

Varity_R

0.55

gMVP

0.46

Mutation Taster

=85/15

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over