rs149250254

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 1P and 14B. PP2BP4_ModerateBP6_Very_StrongBS2

The NM_170606.3(KMT2C):​c.1344G>T​(p.Gln448His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00151 in 1,613,630 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00077 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0016 ( 3 hom. )

Consequence

KMT2C
NM_170606.3 missense

Scores

11
7

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2O:1

Conservation

PhyloP100: 1.20
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), KMT2C. . Gene score misZ 2.1357 (greater than the threshold 3.09). Trascript score misZ 4.2875 (greater than threshold 3.09). GenCC has associacion of gene with intellectual disability, autosomal dominant 40, syndromic intellectual disability, Kleefstra syndrome 2.
BP4
Computational evidence support a benign effect (MetaRNN=0.16666222).
BP6
Variant 7-152252671-C-A is Benign according to our data. Variant chr7-152252671-C-A is described in ClinVar as [Likely_benign]. Clinvar id is 134738.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr7-152252671-C-A is described in Lovd as [Likely_benign].
BS2
High AC in GnomAd4 at 118 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
KMT2CNM_170606.3 linkuse as main transcriptc.1344G>T p.Gln448His missense_variant 10/59 ENST00000262189.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
KMT2CENST00000262189.11 linkuse as main transcriptc.1344G>T p.Gln448His missense_variant 10/591 NM_170606.3 P2Q8NEZ4-1

Frequencies

GnomAD3 genomes
AF:
0.000775
AC:
118
AN:
152178
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000265
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000720
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:
0.00140
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000523
AC:
131
AN:
250604
Hom.:
0
AF XY:
0.000517
AC XY:
70
AN XY:
135444
show subpopulations
Gnomad AFR exome
AF:
0.000185
Gnomad AMR exome
AF:
0.000116
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:
0.00107
Gnomad OTH exome
AF:
0.000492
GnomAD4 exome
AF:
0.00159
AC:
2323
AN:
1461334
Hom.:
3
Cov.:
30
AF XY:
0.00154
AC XY:
1122
AN XY:
726966
show subpopulations
Gnomad4 AFR exome
AF:
0.000179
Gnomad4 AMR exome
AF:
0.000291
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.00201
Gnomad4 OTH exome
AF:
0.00109
GnomAD4 genome
AF:
0.000775
AC:
118
AN:
152296
Hom.:
0
Cov.:
32
AF XY:
0.000645
AC XY:
48
AN XY:
74468
show subpopulations
Gnomad4 AFR
AF:
0.000265
Gnomad4 AMR
AF:
0.000719
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00140
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.00112
Hom.:
1
Bravo
AF:
0.000865
TwinsUK
AF:
0.00405
AC:
15
ALSPAC
AF:
0.00311
AC:
12
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00198
AC:
17
ExAC
AF:
0.000404
AC:
49
EpiCase
AF:
0.00120
EpiControl
AF:
0.00131

ClinVar

Significance: Likely benign
Submissions summary: Benign:2Other:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenJan 01, 2024KMT2C: BS1 -
Likely benign, criteria provided, single submitterclinical testingInvitaeJan 15, 2024- -
not specified Other:1
not provided, no classification providedreference populationITMISep 19, 2013- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.37
BayesDel_addAF
Benign
-0.22
T
BayesDel_noAF
Benign
-0.090
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Benign
0.18
T;T
Eigen
Benign
0.17
Eigen_PC
Uncertain
0.27
FATHMM_MKL
Uncertain
0.88
D
LIST_S2
Uncertain
0.87
.;D
M_CAP
Benign
0.067
D
MetaRNN
Benign
0.17
T;T
MetaSVM
Uncertain
-0.13
T
MutationAssessor
Uncertain
2.3
M;M
MutationTaster
Benign
0.96
D;D
PrimateAI
Uncertain
0.53
T
PROVEAN
Uncertain
-2.9
D;D
REVEL
Uncertain
0.51
Sift
Uncertain
0.0020
D;D
Polyphen
0.45
B;B
Vest4
0.81
MutPred
0.42
Loss of stability (P = 0.0789);Loss of stability (P = 0.0789);
MVP
0.62
MPC
0.26
ClinPred
0.059
T
GERP RS
4.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.28
gMVP
0.49

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.

Other links and lift over

dbSNP: rs149250254; hg19: chr7-151949756; COSMIC: COSV100069734; COSMIC: COSV100069734; API