NM_170606.3:c.6275A>T

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_170606.3(KMT2C):c.6275A>T(p.Asp2092Val) variant causes a missense change. The variant allele was found at a frequency of 0.000384 in 1,614,016 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0023 ( 3 hom., cov: 31)

Exomes 𝑓: 0.00019 ( 1 hom. )

Consequence

KMT2C
NM_170606.3 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3O:1

Conservation

PhyloP100: 3.85

Publications

9 publications found

Variant links:

Genes affected

KMT2C (HGNC:13726): (lysine methyltransferase 2C) This gene is a member of the myeloid/lymphoid or mixed-lineage leukemia (MLL) family and encodes a nuclear protein with an AT hook DNA-binding domain, a DHHC-type zinc finger, six PHD-type zinc fingers, a SET domain, a post-SET domain and a RING-type zinc finger. This protein is a member of the ASC-2/NCOA6 complex (ASCOM), which possesses histone methylation activity and is involved in transcriptional coactivation. [provided by RefSeq, Jul 2008]

KMT2C Gene-Disease associations (from GenCC):

Kleefstra syndrome 2
Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Illumina, Ambry Genetics, Broad Center for Mendelian Genomics
syndromic intellectual disability
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen

KMT2C links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.013420284).

BP6

Variant 7-152181585-T-A is Benign according to our data. Variant chr7-152181585-T-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 134755.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00225 (343/152134) while in subpopulation AFR AF = 0.00805 (334/41488). AF 95% confidence interval is 0.00734. There are 3 homozygotes in GnomAd4. There are 163 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.

BS2

High AC in GnomAd4 at 343 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_170606.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KMT2C	NM_170606.3	MANE Select	c.6275A>T	p.Asp2092Val	missense	Exon 36 of 59	NP_733751.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
KMT2C	ENST00000262189.11	TSL:1 MANE Select	c.6275A>T	p.Asp2092Val	missense	Exon 36 of 59	ENSP00000262189.6
KMT2C	ENST00000360104.8	TSL:1	c.1895A>T	p.Asp632Val	missense	Exon 8 of 31	ENSP00000353218.4
KMT2C	ENST00000473186.5	TSL:1	n.3986A>T		non_coding_transcript_exon	Exon 22 of 46

Frequencies

GnomAD3 genomes

AF:

0.00226

AC:

343

AN:

152016

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00807

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000458

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:

0.000479

GnomAD2 exomes

AF:

0.000482

AC:

121

AN:

251138

AF XY:

0.000427

show subpopulations

Gnomad AFR exome

AF:

0.00664

Gnomad AMR exome

AF:

0.000318

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000881

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000189

AC:

276

AN:

1461882

Hom.:

Cov.:

AF XY:

0.000173

AC XY:

126

AN XY:

727242

show subpopulations

African (AFR)

AF:

0.00717

AC:

240

AN:

33478

American (AMR)

AF:

0.000358

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000360

AC:

AN:

1112012

Other (OTH)

AF:

0.000248

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.480

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00225

AC:

343

AN:

152134

Hom.:

Cov.:

AF XY:

0.00219

AC XY:

163

AN XY:

74376

show subpopulations

African (AFR)

AF:

0.00805

AC:

334

AN:

41488

American (AMR)

AF:

0.000458

AC:

AN:

15296

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5158

South Asian (SAS)

AF:

0.00

AC:

AN:

4808

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10590

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68010

Other (OTH)

AF:

0.000474

AC:

AN:

2108

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.503

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000113

Hom.:

Bravo

AF:

0.00252

ESP6500AA

AF:

0.00817

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000667

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:3Other:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

KMT2C-related disorder

Benign:1

Mar 01, 2022

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications).

Inborn genetic diseases

Benign:1

Nov 29, 2021

Ambry Genetics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as 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.

not provided

Benign:1

Oct 24, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

not specified

Other:1

Sep 19, 2013

ITMI

Significance:not provided

Review Status:no classification provided

Collection Method:reference population

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.47

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.090

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Uncertain

0.61

Eigen

Uncertain

0.34

Eigen_PC

Uncertain

0.31

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.94

M_CAP

Benign

0.042

MetaRNN

Benign

0.013

MetaSVM

Benign

-0.50

MutationAssessor

Pathogenic

3.1

PhyloP100

3.9

PrimateAI

Benign

0.46

PROVEAN

Pathogenic

-5.8

REVEL

Benign

0.26

Sift

Uncertain

0.0010

Polyphen

0.59

Vest4

0.80

MVP

0.47

MPC

0.47

ClinPred

0.12

GERP RS

4.5

Varity_R

0.61

gMVP

0.63

Mutation Taster

=99/1

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over