14-99174379-G-GGTGTGGCT

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PVS1_StrongPM2PP5

The NM_138576.4(BCL11B):​c.2456_2457insAGCCACAC​(p.Gly820AlafsTer27) variant causes a frameshift change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (no stars). Synonymous variant affecting the same amino acid position (i.e. T819T) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Consequence

BCL11B
NM_138576.4 frameshift

Scores

Not classified

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 9.58
Variant links:
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 7 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. There are 6 pathogenic variants in the truncated region.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 14-99174379-G-GGTGTGGCT is Pathogenic according to our data. Variant chr14-99174379-G-GGTGTGGCT is described in ClinVar as [Pathogenic]. Clinvar id is 560175.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
BCL11BNM_138576.4 linkuse as main transcriptc.2456_2457insAGCCACAC p.Gly820AlafsTer27 frameshift_variant 4/4 ENST00000357195.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
BCL11BENST00000357195.8 linkuse as main transcriptc.2456_2457insAGCCACAC p.Gly820AlafsTer27 frameshift_variant 4/41 NM_138576.4 A2Q9C0K0-1
BCL11BENST00000345514.2 linkuse as main transcriptc.2243_2244insAGCCACAC p.Gly749AlafsTer27 frameshift_variant 3/31 P4Q9C0K0-2
BCL11BENST00000443726.2 linkuse as main transcriptc.1874_1875insAGCCACAC p.Gly626AlafsTer27 frameshift_variant 2/25

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Cov.:
31
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Intellectual developmental disorder with speech delay, dysmorphic facies, and t-cell abnormalities Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMAug 29, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

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: rs1555376035; hg19: chr14-99640716; API