Genetic Variant KMT2A:c.11430-142A>T (chr11-118520660-A-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001197104.2(KMT2A):c.11430-142A>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000066 in 151,574 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 29)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

KMT2A
NM_001197104.2 intron

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.25

Publications

10 publications found

Variant links:

Genes affected

KMT2A (HGNC:7132): (lysine methyltransferase 2A) This gene encodes a transcriptional coactivator that plays an essential role in regulating gene expression during early development and hematopoiesis. The encoded protein contains multiple conserved functional domains. One of these domains, the SET domain, is responsible for its histone H3 lysine 4 (H3K4) methyltransferase activity which mediates chromatin modifications associated with epigenetic transcriptional activation. This protein is processed by the enzyme Taspase 1 into two fragments, MLL-C and MLL-N. These fragments reassociate and further assemble into different multiprotein complexes that regulate the transcription of specific target genes, including many of the HOX genes. Multiple chromosomal translocations involving this gene are the cause of certain acute lymphoid leukemias and acute myeloid leukemias. Alternate splicing results in multiple transcript variants.[provided by RefSeq, Oct 2010]

KMT2A links:

TTC36-AS1 (HGNC:55495): (TTC36 and KMT2A antisense RNA 1)

TTC36-AS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.99).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KMT2A	NM_001197104.2 link	c.11430-142A>T		intron_variant	Intron 33 of 35	ENST00000534358.8	NP_001184033.1	Q03164-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
KMT2A	ENST00000534358.8 link	c.11430-142A>T		intron_variant	Intron 33 of 35	1	NM_001197104.2	ENSP00000436786.2		Q03164-3

Frequencies

GnomAD3 genomes

AF:

0.00000660

AC:

AN:

151574

Hom.:

Cov.:

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

452806

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

237852

African (AFR)

AF:

0.00

AC:

AN:

12276

American (AMR)

AF:

0.00

AC:

AN:

19000

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

13318

East Asian (EAS)

AF:

0.00

AC:

AN:

30278

South Asian (SAS)

AF:

0.00

AC:

AN:

42200

European-Finnish (FIN)

AF:

0.00

AC:

AN:

42078

Middle Eastern (MID)

AF:

0.00

AC:

AN:

1924

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

266734

Other (OTH)

AF:

0.00

AC:

AN:

24998

GnomAD4 genome

AF:

0.00000660

AC:

AN:

151574

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

73970

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41296

American (AMR)

AF:

0.00

AC:

AN:

15210

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5166

South Asian (SAS)

AF:

0.00

AC:

AN:

4806

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10440

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

67886

Other (OTH)

AF:

0.00

AC:

AN:

2076

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

21093

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.99

CADD

Benign

0.29

(source)

DANN

Benign

0.38

PhyloP100

-1.2

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over