Genetic Variant BCL6:p.Pro473Thr (chr3-187728483-G-T) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001706.5(BCL6):c.1417C>A(p.Pro473Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00000548 in 1,459,752 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: not found (cov: 31)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

BCL6
NM_001706.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.63

Variant links:

Genes affected

BCL6 (HGNC:1001): (BCL6 transcription repressor) The protein encoded by this gene is a zinc finger transcription factor and contains an N-terminal POZ domain. This protein acts as a sequence-specific repressor of transcription, and has been shown to modulate the transcription of STAT-dependent IL-4 responses of B cells. This protein can interact with a variety of POZ-containing proteins that function as transcription corepressors. This gene is found to be frequently translocated and hypermutated in diffuse large-cell lymphoma (DLCL), and may be involved in the pathogenesis of DLCL. Alternatively spliced transcript variants encoding different protein isoforms have been found for this gene. [provided by RefSeq, Aug 2015]

BCL6 links:

ENSG00000228804 (HGNC:):

ENSG00000228804 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.13836148).

BS2

High AC in GnomAdExome4 at 8 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BCL6	NM_001706.5 link	c.1417C>A	p.Pro473Thr	missense_variant	Exon 6 of 10	ENST00000406870.7	NP_001697.2	P41182-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BCL6	ENST00000406870.7 link	c.1417C>A	p.Pro473Thr	missense_variant	Exon 6 of 10	1	NM_001706.5	ENSP00000384371.2		P41182-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000402

AC:

AN:

248608

Hom.:

AF XY:

0.00000744

AC XY:

AN XY:

134416

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 SAS exome

AF:

0.0000328

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000548

AC:

AN:

1459752

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

726164

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.0000697

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 07, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1417C>A (p.P473T) alteration is located in exon 6 (coding exon 4) of the BCL6 gene. This alteration results from a C to A substitution at nucleotide position 1417, causing the proline (P) at amino acid position 473 to be replaced by a threonine (T). 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

0.094

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.49

CADD

Benign

DANN

Benign

0.87

DEOGEN2

Benign

0.24

.;T;T;.

Eigen

Benign

-0.082

Eigen_PC

Benign

0.11

FATHMM_MKL

Uncertain

0.93

LIST_S2

Uncertain

0.91

D;.;D;.

M_CAP

Benign

0.0056

MetaRNN

Benign

0.14

T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.0

N;N;N;N

PrimateAI

Benign

0.46

PROVEAN

Benign

-1.1

.;N;N;N

REVEL

Benign

0.074

Sift

Benign

0.38

.;T;T;T

Sift4G

Benign

0.68

T;T;T;T

Polyphen

0.38

.;B;B;.

Vest4

0.40

MutPred

0.38

Gain of glycosylation at Y469 (P = 4e-04);Gain of glycosylation at Y469 (P = 4e-04);Gain of glycosylation at Y469 (P = 4e-04);Gain of glycosylation at Y469 (P = 4e-04);

MVP

0.36

MPC

0.23

ClinPred

0.12

GERP RS

4.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.044

gMVP

0.15

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