rs762748381

Variant names:

• chrX-40052350-G-A
• rs762748381
• NM_001123385.2:c.5027C>T

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PP3

The NM_001123385.2(BCOR):​c.5027C>T​(p.Ser1676Phe) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000182 in 1,097,719 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 23)
  • Exomes 𝑓: 0.0000018 (0 hom. 0 hem.)
• Consequence: BCOR NM_001123385.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 9.41
• Publications: 0 publications found

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: Orphanet, G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae), ClinGen, Illumina
• microphthalmia, Lenz type

  Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.835

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001123385.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BCOR	NM_001123385.2	MANE Select	c.5027C>T	p.Ser1676Phe	missense	Exon 15 of 15	NP_001116857.1	Q6W2J9-1
	BCOR	NM_001437510.1		c.5027C>T	p.Ser1676Phe	missense	Exon 15 of 15	NP_001424439.1
	BCOR	NM_001438207.1		c.4973C>T	p.Ser1658Phe	missense	Exon 14 of 14	NP_001425136.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BCOR	ENST00000378444.9	TSL:1 MANE Select	c.5027C>T	p.Ser1676Phe	missense	Exon 15 of 15	ENSP00000367705.4	Q6W2J9-1
	BCOR	ENST00000397354.7	TSL:1	c.4925C>T	p.Ser1642Phe	missense	Exon 15 of 15	ENSP00000380512.3	Q6W2J9-2
	BCOR	ENST00000378455.8	TSL:1	c.4871C>T	p.Ser1624Phe	missense	Exon 14 of 14	ENSP00000367716.4	Q6W2J9-4

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD2 exomes AF: 0.00000545 AC: 1 AN: 183405 AF XY: 0.00

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: 0.0000122

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000182 AC: 2 AN: 1097719 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 363077

African (AFR) AF: 0.00 AC: 0 AN: 26396

American (AMR) AF: 0.00 AC: 0 AN: 35202

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 19382

East Asian (EAS) AF: 0.00 AC: 0 AN: 30198

South Asian (SAS) AF: 0.00 AC: 0 AN: 54132

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 40525

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4136

European-Non Finnish (NFE) AF: 0.00000238 AC: 2 AN: 841660

Other (OTH) AF: 0.00 AC: 0 AN: 46088

GnomAD4 genome Cov.: 23

ExAC AF: 0.00000824 AC: 1

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.98
BayesDel_addAF	Pathogenic	0.46	D
BayesDel_noAF	Pathogenic	0.43
CADD	Uncertain	26
DANN	Uncertain	1.0
DEOGEN2	Benign	0.24	T
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.96	D
M_CAP	Pathogenic	0.82	D
MetaRNN	Pathogenic	0.84	D
MetaSVM	Uncertain	0.14	D
MutationAssessor	Uncertain	2.8	M
PhyloP100		9.4
PrimateAI	Uncertain	0.72	T
PROVEAN	Pathogenic	-5.5	D
REVEL	Uncertain	0.64
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0010	D
Polyphen		1.0	D
Vest4		0.81
MutPred		0.49		Gain of helix (P = 0.0199)
MVP		0.94
MPC		0.98
ClinPred		0.98	D
GERP RS		5.5
Varity_R		0.81
gMVP		0.86
Mutation Taster		=31/69	disease causing

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

Other links and lift over

dbSNP: rs762748381; hg19: chrX-39911603;