chr3-187729201-G-A

Variant summary

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

The NM_001706.5(BCL6):​c.1204C>T​(p.Arg402Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000241 in 1,454,080 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R402H) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.000024 ( 0 hom. )

Consequence

BCL6
NM_001706.5 missense

Scores

8
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.65
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]

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=0.25494707).
BS2
High AC in GnomAdExome4 at 35 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
BCL6NM_001706.5 linkuse as main transcriptc.1204C>T p.Arg402Cys missense_variant 5/10 ENST00000406870.7
LOC100131635NR_034062.1 linkuse as main transcriptn.294-3170G>A intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
BCL6ENST00000406870.7 linkuse as main transcriptc.1204C>T p.Arg402Cys missense_variant 5/101 NM_001706.5 P1P41182-1
ENST00000449623.5 linkuse as main transcriptn.347-4323G>A intron_variant, non_coding_transcript_variant 2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000320
AC:
8
AN:
249986
Hom.:
0
AF XY:
0.0000370
AC XY:
5
AN XY:
135080
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000292
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000989
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000353
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000241
AC:
35
AN:
1454080
Hom.:
0
Cov.:
31
AF XY:
0.0000318
AC XY:
23
AN XY:
723194
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000454
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000824
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000226
Gnomad4 OTH exome
AF:
0.0000167
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000659
Hom.:
0
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000259
AC:
1
ExAC
AF:
0.0000165
AC:
2

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 submitterclinical testingAmbry GeneticsFeb 23, 2023The c.1204C>T (p.R402C) alteration is located in exon 5 (coding exon 3) of the BCL6 gene. This alteration results from a C to T substitution at nucleotide position 1204, causing the arginine (R) at amino acid position 402 to be replaced by a cysteine (C). 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
0.15
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.37
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.46
.;T;T;.
Eigen
Uncertain
0.45
Eigen_PC
Uncertain
0.55
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Uncertain
0.94
D;.;D;.
M_CAP
Benign
0.0069
T
MetaRNN
Benign
0.25
T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.34
N;N;N;N
MutationTaster
Benign
0.97
D;D;D
PrimateAI
Uncertain
0.59
T
PROVEAN
Benign
-1.9
.;N;N;N
REVEL
Benign
0.16
Sift
Benign
0.057
.;T;T;D
Sift4G
Uncertain
0.041
D;D;D;D
Polyphen
0.99
.;D;D;.
Vest4
0.47
MutPred
0.29
Gain of glycosylation at S404 (P = 0.026);Gain of glycosylation at S404 (P = 0.026);Gain of glycosylation at S404 (P = 0.026);Gain of glycosylation at S404 (P = 0.026);
MVP
0.51
MPC
0.43
ClinPred
0.18
T
GERP RS
5.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.11
gMVP
0.30

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.

Other links and lift over

dbSNP: rs769386051; hg19: chr3-187446989; COSMIC: COSV51653661; COSMIC: COSV51653661; API