7-152136917-T-C

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM2PP2PP3_Strong

The NM_170606.3(KMT2C):ā€‹c.14651A>Gā€‹(p.Tyr4884Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000000685 in 1,459,944 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

KMT2C
NM_170606.3 missense

Scores

15
3
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.82
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 Likely_pathogenic. Variant got 7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
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.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.939

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KMT2CNM_170606.3 linkuse as main transcriptc.14651A>G p.Tyr4884Cys missense_variant 59/59 ENST00000262189.11 NP_733751.2 Q8NEZ4-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KMT2CENST00000262189.11 linkuse as main transcriptc.14651A>G p.Tyr4884Cys missense_variant 59/591 NM_170606.3 ENSP00000262189.6 Q8NEZ4-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000400
AC:
1
AN:
249762
Hom.:
0
AF XY:
0.00000739
AC XY:
1
AN XY:
135236
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000483
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1459944
Hom.:
0
Cov.:
30
AF XY:
0.00000138
AC XY:
1
AN XY:
726382
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.00000824
AC:
1

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 submitterclinical testingGeneDxJun 26, 2019In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; Has not been previously published as pathogenic or benign in association with a neurodevelopmental disorder to our knowledge; This variant is associated with the following publications: (PMID: 22895193, 25829971) -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.98
BayesDel_addAF
Pathogenic
0.28
D
BayesDel_noAF
Pathogenic
0.17
CADD
Pathogenic
27
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.68
D;D;.
Eigen
Pathogenic
0.84
Eigen_PC
Pathogenic
0.75
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Pathogenic
0.99
.;D;D
M_CAP
Pathogenic
0.57
D
MetaRNN
Pathogenic
0.94
D;D;D
MetaSVM
Pathogenic
0.83
D
MutationAssessor
Pathogenic
3.1
M;M;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Pathogenic
0.80
T
PROVEAN
Pathogenic
-8.3
D;.;D
REVEL
Pathogenic
0.75
Sift
Pathogenic
0.0
D;.;D
Sift4G
Pathogenic
0.0
.;.;D
Polyphen
1.0
D;D;.
Vest4
0.85
MutPred
0.80
Loss of sheet (P = 0.0817);Loss of sheet (P = 0.0817);.;
MVP
0.89
MPC
2.6
ClinPred
1.0
D
GERP RS
5.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.92
gMVP
0.93

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: rs748426014; hg19: chr7-151834002; COSMIC: COSV51513121; API