11-118512002-G-A

Position:

chr11-118512002-G-A

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 3P and 4B. PM5PP2BS2

The NM_001197104.2(KMT2A):c.11123G>A(p.Arg3708His) variant causes a missense change. The variant allele was found at a frequency of 0.00000616 in 1,461,746 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R3708P) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

KMT2A
NM_001197104.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.38

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 made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM5

Other missense variant is known to change same aminoacid residue: Variant chr11-118512002-G-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 2499544.Status of the report is criteria_provided_single_submitter, 1 stars.

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), KMT2A. . Gene score misZ 6.2276 (greater than the threshold 3.09). Trascript score misZ 8.7715 (greater than threshold 3.09). GenCC has associacion of gene with Wiedemann-Steiner syndrome.

BS2

High AC in GnomAdExome4 at 9 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
KMT2A	NM_001197104.2 linkuse as main transcript	c.11123G>A	p.Arg3708His	missense_variant	31/36	ENST00000534358.8
TTC36-AS1	NR_120574.1 linkuse as main transcript	n.420C>T		non_coding_transcript_exon_variant	3/3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
KMT2A	ENST00000534358.8 linkuse as main transcript	c.11123G>A	p.Arg3708His	missense_variant	31/36	1	NM_001197104.2	P4	Q03164-3
TTC36-AS1	ENST00000532597.6 linkuse as main transcript	n.340C>T		non_coding_transcript_exon_variant	3/3	2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000795

AC:

AN:

251458

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135910

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000616

AC:

AN:

1461746

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

727188

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000447

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000630

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000756

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Mar 08, 2023

This variant is present in population databases (no rsID available, gnomAD 0.003%). 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 KMT2A protein function. ClinVar contains an entry for this variant (Variation ID: 1473220). This variant has not been reported in the literature in individuals affected with KMT2A-related conditions. This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 3708 of the KMT2A protein (p.Arg3708His). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.55

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.32

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.32

.;T;.

Eigen

Uncertain

0.68

Eigen_PC

Pathogenic

0.67

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.96

D;D;D

M_CAP

Benign

0.022

MetaRNN

Uncertain

0.45

T;T;T

MetaSVM

Benign

-0.72

MutationAssessor

Benign

1.6

.;L;.

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Pathogenic

0.87

PROVEAN

Uncertain

-2.7

D;D;.

REVEL

Benign

0.24

Sift

Uncertain

0.017

D;D;.

Sift4G

Benign

0.067

T;T;.

Polyphen

1.0

.;D;.

Vest4

0.46

MutPred

0.55

.;Loss of MoRF binding (P = 0.0115);.;

MVP

0.48

MPC

1.3

ClinPred

0.98

GERP RS

5.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.27

gMVP

0.62

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over