rs144376311

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The NM_170606.3(KMT2C):​c.10024G>T​(p.Ala3342Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000416 in 1,609,114 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A3342V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00024 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

KMT2C
NM_170606.3 missense

Scores

18

Clinical Significance

Likely benign criteria provided, single submitter B:1O:1

Conservation

PhyloP100: 0.118

Publications

2 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -14 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.016889185).
BP6
Variant 7-152163553-C-A is Benign according to our data. Variant chr7-152163553-C-A is described in ClinVar as Likely_benign. ClinVar VariationId is 134796.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000243 (37/152202) while in subpopulation AFR AF = 0.000891 (37/41522). AF 95% confidence interval is 0.000664. There are 0 homozygotes in GnomAd4. There are 22 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High AC in GnomAd4 at 37 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
KMT2CNM_170606.3 linkc.10024G>T p.Ala3342Ser missense_variant Exon 43 of 59 ENST00000262189.11 NP_733751.2 Q8NEZ4-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
KMT2CENST00000262189.11 linkc.10024G>T p.Ala3342Ser missense_variant Exon 43 of 59 1 NM_170606.3 ENSP00000262189.6 Q8NEZ4-1

Frequencies

GnomAD3 genomes
AF:
0.000243
AC:
37
AN:
152084
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000894
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000564
AC:
14
AN:
248142
AF XY:
0.0000448
show subpopulations
Gnomad AFR exome
AF:
0.000862
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000206
AC:
30
AN:
1456912
Hom.:
0
Cov.:
33
AF XY:
0.0000166
AC XY:
12
AN XY:
724140
show subpopulations
African (AFR)
AF:
0.000720
AC:
24
AN:
33332
American (AMR)
AF:
0.0000675
AC:
3
AN:
44462
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25778
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39636
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85578
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53258
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5744
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1108932
Other (OTH)
AF:
0.0000498
AC:
3
AN:
60192
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.472
Heterozygous variant carriers
0
2
4
7
9
11
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000243
AC:
37
AN:
152202
Hom.:
0
Cov.:
32
AF XY:
0.000296
AC XY:
22
AN XY:
74414
show subpopulations
African (AFR)
AF:
0.000891
AC:
37
AN:
41522
American (AMR)
AF:
0.00
AC:
0
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4810
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10606
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68008
Other (OTH)
AF:
0.00
AC:
0
AN:
2108
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.511
Heterozygous variant carriers
0
3
6
10
13
16
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000416
Hom.:
0
Bravo
AF:
0.000242
ESP6500AA
AF:
0.000681
AC:
3
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000659
AC:
8

ClinVar

Significance: Likely benign
Submissions summary: Benign:1Other:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Mar 07, 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 v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.068
BayesDel_addAF
Benign
-0.36
T
BayesDel_noAF
Benign
-0.35
CADD
Benign
1.3
DANN
Benign
0.30
DEOGEN2
Benign
0.055
T;T
Eigen
Benign
-0.93
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.21
N
LIST_S2
Benign
0.56
.;T
M_CAP
Benign
0.022
T
MetaRNN
Benign
0.017
T;T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
1.4
L;L
PhyloP100
0.12
PrimateAI
Benign
0.26
T
PROVEAN
Benign
-0.68
N;N
REVEL
Benign
0.26
Sift
Benign
0.28
T;T
Polyphen
0.013
B;B
Vest4
0.094
MVP
0.33
MPC
0.073
ClinPred
0.021
T
GERP RS
-3.9
Varity_R
0.029
gMVP
0.17
Mutation Taster
=91/9
polymorphism

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

Other links and lift over

dbSNP: rs144376311; hg19: chr7-151860638; API