14-99174201-C-T

Variant names:

• chr14-99174201-C-T
• NM_138576.4:c.2635G>A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_138576.4(BCL11B):​c.2635G>A​(p.Glu879Lys) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. 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. E879D) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: BCL11B NM_138576.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.86

Genes affected

BCL11B (HGNC:13222): (BCL11 transcription factor B) This gene encodes a C2H2-type zinc finger protein and is closely related to BCL11A, a gene whose translocation may be associated with B-cell malignancies. Although the specific function of this gene has not been determined, the encoded protein is known to be a transcriptional repressor, and is regulated by the NURD nucleosome remodeling and histone deacetylase complex. Four alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Aug 2013]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BCL11B	NM_138576.4	c.2635G>A	p.Glu879Lys	missense_variant	Exon 4 of 4	ENST00000357195.8	NP_612808.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BCL11B	ENST00000357195.8	c.2635G>A	p.Glu879Lys	missense_variant	Exon 4 of 4	1	NM_138576.4	ENSP00000349723.3
BCL11B	ENST00000345514.2	c.2422G>A	p.Glu808Lys	missense_variant	Exon 3 of 3	1		ENSP00000280435.6
BCL11B	ENST00000443726.2	c.2053G>A	p.Glu685Lys	missense_variant	Exon 2 of 2	5		ENSP00000387419.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Mar 23, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 879 of the BCL11B protein (p.Glu879Lys). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt BCL11B protein function. This variant has not been reported in the literature in individuals affected with BCL11B-related conditions. This variant is not present in population databases (gnomAD no frequency). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.95
BayesDel_addAF	Benign	-0.0043	T
BayesDel_noAF	Benign	-0.24
CADD	Pathogenic	33
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.31	T;.;.
Eigen	Uncertain	0.52
Eigen_PC	Uncertain	0.53
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.94	D;D;D
M_CAP	Benign	0.018	T
MetaRNN	Uncertain	0.61	D;D;D
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.8	L;.;.
PrimateAI	Pathogenic	0.89	D
PROVEAN	Benign	-1.8	N;N;N
REVEL	Benign	0.27
Sift	Benign	0.047	D;D;D
Sift4G	Uncertain	0.027	D;T;T
Polyphen		0.94	P;D;.
Vest4		0.65
MutPred		0.54		Gain of MoRF binding (P = 0.0017);.;.;
MVP		0.50
MPC		1.5
ClinPred		0.94	D
GERP RS		4.9
Varity_R		0.23
gMVP		0.94

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr14-99640538;