12-49041037-G-C

Variant names:

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_003482.4(KMT2D):c.6733C>G(p.Leu2245Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0017 in 1,567,318 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0012 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0017 ( 1 hom. )

Consequence

KMT2D
NM_003482.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:7

Conservation

PhyloP100: 2.54

Variant links:

Genes affected

KMT2D (HGNC:7133): (lysine methyltransferase 2D) The protein encoded by this gene is a histone methyltransferase that methylates the Lys-4 position of histone H3. The encoded protein is part of a large protein complex called ASCOM, which has been shown to be a transcriptional regulator of the beta-globin and estrogen receptor genes. Mutations in this gene have been shown to be a cause of Kabuki syndrome. [provided by RefSeq, Oct 2010]

KMT2D links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.012293369).

BP6

Variant 12-49041037-G-C is Benign according to our data. Variant chr12-49041037-G-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 158779.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=6, Benign=1, Uncertain_significance=1}. Variant chr12-49041037-G-C is described in Lovd as [Likely_benign].

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00121 (184/152246) while in subpopulation NFE AF= 0.00184 (125/68006). AF 95% confidence interval is 0.00158. There are 0 homozygotes in gnomad4. There are 92 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High AC in GnomAd4 at 184 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KMT2D	NM_003482.4 link	c.6733C>G	p.Leu2245Val	missense_variant	Exon 32 of 55	ENST00000301067.12	NP_003473.3	O14686-1Q59FG6Q6PIA1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
KMT2D	ENST00000301067.12 link	c.6733C>G	p.Leu2245Val	missense_variant	Exon 32 of 55	5	NM_003482.4	ENSP00000301067.7		O14686-1

Frequencies

GnomAD3 genomes

AF:

0.00121

AC:

184

AN:

152128

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000386

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00292

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00184

Gnomad OTH

AF:

0.000958

GnomAD3 exomes

AF:

0.00113

AC:

235

AN:

208780

Hom.:

AF XY:

0.00118

AC XY:

131

AN XY:

111450

show subpopulations

Gnomad AFR exome

AF:

0.000332

Gnomad AMR exome

AF:

0.000345

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000276

Gnomad FIN exome

AF:

0.00246

Gnomad NFE exome

AF:

0.00161

Gnomad OTH exome

AF:

0.00264

GnomAD4 exome

AF:

0.00175

AC:

2475

AN:

1415072

Hom.:

Cov.:

AF XY:

0.00170

AC XY:

1189

AN XY:

698900

show subpopulations

Gnomad4 AFR exome

AF:

0.000405

Gnomad4 AMR exome

AF:

0.000356

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000344

Gnomad4 FIN exome

AF:

0.00223

Gnomad4 NFE exome

AF:

0.00204

Gnomad4 OTH exome

AF:

0.00144

GnomAD4 genome

AF:

0.00121

AC:

184

AN:

152246

Hom.:

Cov.:

AF XY:

0.00124

AC XY:

AN XY:

74418

show subpopulations

Gnomad4 AFR

AF:

0.000385

Gnomad4 AMR

AF:

0.000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00292

Gnomad4 NFE

AF:

0.00184

Gnomad4 OTH

AF:

0.000948

Alfa

AF:

0.00148

Hom.:

Bravo

AF:

0.00102

TwinsUK

AF:

0.00593

AC:

ALSPAC

AF:

0.00259

AC:

ESP6500AA

AF:

0.000519

AC:

ESP6500EA

AF:

0.00218

AC:

ExAC

AF:

0.00115

AC:

139

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:7

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Benign:3

Mar 13, 2015

Eurofins Ntd Llc (ga)

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jun 16, 2017

Genetic Services Laboratory, University of Chicago

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided

Benign:2

Oct 28, 2019

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is associated with the following publications: (PMID: 29627316, 30459467, 30107592) -

Mar 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

KMT2D: BS1 -

Kabuki syndrome 1

Uncertain:1

Nov 01, 2016

Center for Human Genetics, Inc, Center for Human Genetics, Inc

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Kabuki syndrome

Benign:1

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Inborn genetic diseases

Benign:1

Sep 16, 2024

Ambry Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.22

BayesDel_addAF

Benign

-0.38

BayesDel_noAF

Benign

-0.32

CADD

Benign

DANN

Benign

0.88

DEOGEN2

Benign

0.038

Eigen

Benign

0.13

Eigen_PC

Uncertain

0.27

FATHMM_MKL

Uncertain

0.84

LIST_S2

Benign

0.77

M_CAP

Uncertain

0.21

MetaRNN

Benign

0.012

MetaSVM

Benign

-0.64

MutationAssessor

Benign

0.55

PrimateAI

Uncertain

0.54

PROVEAN

Benign

-0.46

REVEL

Uncertain

0.33

Sift

Benign

0.046

Polyphen

0.69

Vest4

0.40

MVP

0.30

MPC

0.57

ClinPred

0.017

GERP RS

5.1

RBP_binding_hub_radar

0.92

RBP_regulation_power_radar

2.1

Varity_R

0.092

gMVP

0.065

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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