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GeneBe

19-44748924-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_005178.5(BCL3):​c.134C>T​(p.Ala45Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000593 in 1,180,920 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict 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. A45D) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000039 ( 0 hom. )

Consequence

BCL3
NM_005178.5 missense

Scores

2
3
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.71
Variant links:
Genes affected
BCL3 (HGNC:998): (BCL3 transcription coactivator) This gene is a proto-oncogene candidate. It is identified by its translocation into the immunoglobulin alpha-locus in some cases of B-cell leukemia. The protein encoded by this gene contains seven ankyrin repeats, which are most closely related to those found in I kappa B proteins. This protein functions as a transcriptional co-activator that activates through its association with NF-kappa B homodimers. The expression of this gene can be induced by NF-kappa B, which forms a part of the autoregulatory loop that controls the nuclear residence of p50 NF-kappa B. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.14571434).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
BCL3NM_005178.5 linkuse as main transcriptc.134C>T p.Ala45Val missense_variant 1/9 ENST00000164227.10
BCL3XM_011527198.4 linkuse as main transcriptc.134C>T p.Ala45Val missense_variant 1/9
BCL3XM_017027110.2 linkuse as main transcriptc.136+796C>T intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
BCL3ENST00000164227.10 linkuse as main transcriptc.134C>T p.Ala45Val missense_variant 1/91 NM_005178.5 P1
BCL3ENST00000487394.1 linkuse as main transcriptn.523C>T non_coding_transcript_exon_variant 2/23
BCL3ENST00000403534.7 linkuse as main transcriptn.424+796C>T intron_variant, non_coding_transcript_variant 2

Frequencies

GnomAD3 genomes
AF:
0.0000200
AC:
3
AN:
149824
Hom.:
0
Cov.:
31
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000446
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000388
AC:
4
AN:
1031096
Hom.:
0
Cov.:
30
AF XY:
0.00000204
AC XY:
1
AN XY:
489708
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000338
Gnomad4 OTH exome
AF:
0.0000254
GnomAD4 genome
AF:
0.0000200
AC:
3
AN:
149824
Hom.:
0
Cov.:
31
AF XY:
0.0000137
AC XY:
1
AN XY:
73074
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000446
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000113

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 GeneticsMay 03, 2023The c.134C>T (p.A45V) alteration is located in exon 1 (coding exon 1) of the BCL3 gene. This alteration results from a C to T substitution at nucleotide position 134, causing the alanine (A) at amino acid position 45 to be replaced by a valine (V). 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
0.12
BayesDel_addAF
Benign
-0.16
T
BayesDel_noAF
Benign
-0.47
CADD
Benign
18
DANN
Uncertain
1.0
DEOGEN2
Benign
0.12
T
Eigen
Benign
-0.84
Eigen_PC
Benign
-0.80
FATHMM_MKL
Benign
0.30
N
LIST_S2
Benign
0.59
T
M_CAP
Pathogenic
0.35
D
MetaRNN
Benign
0.15
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.90
L
MutationTaster
Benign
1.0
N
PrimateAI
Pathogenic
0.86
D
PROVEAN
Benign
-0.53
N
REVEL
Benign
0.0090
Sift
Uncertain
0.0060
D
Sift4G
Uncertain
0.018
D
Polyphen
0.027
B
Vest4
0.24
MutPred
0.34
Loss of loop (P = 0.0022);
MVP
0.58
MPC
0.14
ClinPred
0.31
T
GERP RS
1.2
Varity_R
0.081
gMVP
0.26

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: rs932958438; hg19: chr19-45252181; API