2-60460656-C-G

Variant names:

• chr2-60460656-C-G
• NM_022893.4:c.2256G>C

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP2

The NM_022893.4(BCL11A):​c.2256G>C​(p.Lys752Asn) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: BCL11A NM_022893.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.87

Genes affected

BCL11A (HGNC:13221): (BCL11 transcription factor A) This gene encodes a C2H2 type zinc-finger protein by its similarity to the mouse Bcl11a/Evi9 protein. The corresponding mouse gene is a common site of retroviral integration in myeloid leukemia, and may function as a leukemia disease gene, in part, through its interaction with BCL6. During hematopoietic cell differentiation, this gene is down-regulated. It is possibly involved in lymphoma pathogenesis since translocations associated with B-cell malignancies also deregulates its expression. Multiple transcript variants encoding several different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in the BCL11A gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 12 curated pathogenic missense variants (we use a threshold of 10). The gene has 12 curated benign missense variants. Gene score misZ: 3.835 (above the threshold of 3.09). Trascript score misZ: 3.6065 (above the threshold of 3.09). GenCC associations: The gene is linked to intellectual disability, autosomal dominant 40, Dias-Logan syndrome.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BCL11A	NM_022893.4	c.2256G>C	p.Lys752Asn	missense_variant	Exon 4 of 4	ENST00000642384.2	NP_075044.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BCL11A	ENST00000642384.2	c.2256G>C	p.Lys752Asn	missense_variant	Exon 4 of 4		NM_022893.4	ENSP00000496168.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 39

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Feb 11, 2023

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Benign	-0.11	T
BayesDel_noAF	Benign	-0.40
CADD	Pathogenic	35
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.47	.;T;.
Eigen	Uncertain	0.54
Eigen_PC	Uncertain	0.61
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Benign	0.48	T;T;T
M_CAP	Benign	0.016	T
MetaRNN	Uncertain	0.45	T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.54	.;N;.
PrimateAI	Pathogenic	0.94	D
PROVEAN	Pathogenic	-4.5	D;.;.
REVEL	Benign	0.19
Sift	Uncertain	0.0020	D;.;.
Sift4G	Uncertain	0.0020	D;.;.
Polyphen		1.0, 0.97	.;D;D
Vest4		0.70
MutPred		0.41		.;Loss of methylation at K752 (P = 7e-04);.;
MVP		0.63
ClinPred		0.96	D
GERP RS		6.0
Varity_R		0.79
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: chr2-60687791; COSMIC: COSV100185957; COSMIC: COSV100185957;