NM_022893.4:c.2194dupA

Variant names:

• chr2-60460717-C-CT
• rs1676202186
• NM_022893.4:c.2194dupA

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PVS1_Strong PM2 PP5_Moderate

The NM_022893.4(BCL11A):​c.2194dupA​(p.Arg732LysfsTer14) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Likely pathogenic (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: BCL11A NM_022893.4 frameshift
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 3.31
• Publications: 0 publications found

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]

BCL11A Gene-Disease associations (from GenCC):

• Dias-Logan syndrome

  Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Illumina, Labcorp Genetics (formerly Invitae), Ambry Genetics, ClinGen, G2P

ACMG classification

Our verdict: Likely_pathogenic. The variant received 8 ACMG points.

• PVS1: Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.125 CDS is truncated, and there are 2 pathogenic variants in the truncated region.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 2-60460717-C-CT is Pathogenic according to our data. Variant chr2-60460717-C-CT is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 985399.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_022893.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BCL11A	NM_022893.4	MANE Select	c.2194dupA	p.Arg732LysfsTer14	frameshift	Exon 4 of 4	NP_075044.2
	BCL11A	NM_001405708.1		c.2194dupA	p.Arg732LysfsTer14	frameshift	Exon 4 of 5	NP_001392637.1	D9YZW0
	BCL11A	NM_001405709.1		c.2194dupA	p.Arg732LysfsTer14	frameshift	Exon 5 of 5	NP_001392638.1	D9YZW0

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BCL11A	ENST00000642384.2	MANE Select	c.2194dupA	p.Arg732LysfsTer14	frameshift	Exon 4 of 4	ENSP00000496168.1	Q9H165-1
	BCL11A	ENST00000335712.11	TSL:1	c.2092dupA	p.Arg698LysfsTer14	frameshift	Exon 3 of 3	ENSP00000338774.7	Q9H165-6
	BCL11A	ENST00000358510.6	TSL:1	c.2092dupA	p.Arg698LysfsTer14	frameshift	Exon 3 of 4	ENSP00000351307.5	A0A2U3TZJ5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 39

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Likely pathogenic

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
1	-	-	Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		3.3

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

Other links and lift over

dbSNP: rs1676202186; hg19: chr2-60687852;