Genetic Variant NM_001706.5:c.1252A>C (chr3-187729153-T-G) – ACMG Classification: Benign (-8 pts)

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_001706.5(BCL6):c.1252A>C(p.Met418Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000628 in 1,607,878 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 0.00024 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000045 ( 0 hom. )

Consequence

BCL6
NM_001706.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.444

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 Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.022450715).

BS2

High AC in GnomAd4 at 36 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BCL6	NM_001706.5 link	c.1252A>C	p.Met418Leu	missense_variant	Exon 5 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.1252A>C	p.Met418Leu	missense_variant	Exon 5 of 10	1	NM_001706.5	ENSP00000384371.2		P41182-1

Frequencies

GnomAD3 genomes

AF:

0.000237

AC:

AN:

152146

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000821

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.000478

GnomAD3 exomes

AF:

0.0000971

AC:

AN:

247214

Hom.:

AF XY:

0.0000749

AC XY:

AN XY:

133490

show subpopulations

Gnomad AFR exome

AF:

0.00105

Gnomad AMR exome

AF:

0.000204

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:

0.0000447

AC:

AN:

1455732

Hom.:

Cov.:

AF XY:

0.0000359

AC XY:

AN XY:

723368

show subpopulations

Gnomad4 AFR exome

AF:

0.00135

Gnomad4 AMR exome

AF:

0.000135

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000117

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.000183

GnomAD4 genome

AF:

0.000237

AC:

AN:

152146

Hom.:

Cov.:

AF XY:

0.000215

AC XY:

AN XY:

74320

show subpopulations

Gnomad4 AFR

AF:

0.000821

Gnomad4 AMR

AF:

0.0000655

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:

0.000478

Alfa

AF:

0.0000740

Hom.:

Bravo

AF:

0.000306

ESP6500AA

AF:

0.000908

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000123

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 06, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1252A>C (p.M418L) alteration is located in exon 5 (coding exon 3) of the BCL6 gene. This alteration results from a A to C substitution at nucleotide position 1252, causing the methionine (M) at amino acid position 418 to be replaced by a leucine (L). 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

0.10

BayesDel_addAF

Benign

-0.56

BayesDel_noAF

Benign

-0.63

CADD

Benign

DANN

Benign

0.65

DEOGEN2

Benign

0.24

.;T;T;.

Eigen

Benign

-0.74

Eigen_PC

Benign

-0.55

FATHMM_MKL

Uncertain

0.87

LIST_S2

Benign

0.69

T;.;T;.

M_CAP

Benign

0.0023

MetaRNN

Benign

0.022

T;T;T;T

MetaSVM

Benign

-0.97

MutationAssessor

Benign

0.69

N;N;N;N

PrimateAI

Benign

0.48

PROVEAN

Benign

-0.28

.;N;N;N

REVEL

Benign

0.033

Sift

Benign

0.24

.;T;T;T

Sift4G

Benign

0.66

T;T;T;T

Polyphen

0.0

.;B;B;.

Vest4

0.26

MutPred

0.26

Loss of loop (P = 0.0203);Loss of loop (P = 0.0203);Loss of loop (P = 0.0203);Loss of loop (P = 0.0203);

MVP

0.24

MPC

0.16

ClinPred

0.011

GERP RS

1.6

Varity_R

0.034

gMVP

0.12

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