rs182572555

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_ModerateBP6_ModerateBS1BS2

The NM_170606.3(KMT2C):​c.13522C>T​(p.Pro4508Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000929 in 1,614,232 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00045 ( 1 hom., cov: 33)
Exomes 𝑓: 0.000055 ( 0 hom. )

Consequence

KMT2C
NM_170606.3 missense

Scores

3
9
7

Clinical Significance

Likely benign criteria provided, single submitter B:3O:1

Conservation

PhyloP100: 10.0
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 -12 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.114400625).
BP6
Variant 7-152148405-G-A is Benign according to our data. Variant chr7-152148405-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 134815.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.000453 (69/152338) while in subpopulation AMR AF= 0.00405 (62/15306). AF 95% confidence interval is 0.00324. There are 1 homozygotes in gnomad4. There are 54 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High AC in GnomAd4 at 69 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
KMT2CNM_170606.3 linkc.13522C>T p.Pro4508Ser missense_variant Exon 52 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.13522C>T p.Pro4508Ser missense_variant Exon 52 of 59 1 NM_170606.3 ENSP00000262189.6 Q8NEZ4-1

Frequencies

GnomAD3 genomes
AF:
0.000453
AC:
69
AN:
152220
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00406
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:
0.00191
GnomAD3 exomes
AF:
0.000223
AC:
56
AN:
251222
Hom.:
0
AF XY:
0.000177
AC XY:
24
AN XY:
135752
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00147
Gnomad ASJ exome
AF:
0.000199
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000554
AC:
81
AN:
1461894
Hom.:
0
Cov.:
32
AF XY:
0.0000481
AC XY:
35
AN XY:
727248
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00132
Gnomad4 ASJ exome
AF:
0.0000765
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000117
Gnomad4 OTH exome
AF:
0.0000993
GnomAD4 genome
AF:
0.000453
AC:
69
AN:
152338
Hom.:
1
Cov.:
33
AF XY:
0.000725
AC XY:
54
AN XY:
74492
show subpopulations
Gnomad4 AFR
AF:
0.0000722
Gnomad4 AMR
AF:
0.00405
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00189
Alfa
AF:
0.0000422
Hom.:
0
Bravo
AF:
0.000559
ExAC
AF:
0.0000659
AC:
8
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Likely benign
Submissions summary: Benign:3Other:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:2
-
Department of Pathology and Laboratory Medicine, Sinai Health System
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

The KMT2C p.P4508S variant was not identified in the literature but was identified in dbSNP (ID: rs182572555) and ClinVar (submitted by ITMI, no classification provided). The variant was identified in control databases in 58 of 282632 chromosomes at a frequency of 0.0002052, and was observed at the highest frequency in the Latino population in 53 of 35436 chromosomes (freq: 0.001496) (Genome Aggregation Database March 6, 2019, v2.1.1). This frequency is greater than expected for the rare, autosomal dominant Kleefstra syndrome 2 associated with KMT2C variants. The p.P4508 residue is conserved in mammals and more distantly related organisms however computational analyses (MUT Assesor, PolyPhen-2, SIFT, MutationTaster, Revel, FATHMM, MetaLR, DANN) provide inconsistent predictions regarding the impact to the protein; this information is not very predictive of pathogenicity. The variant occurs outside of the splicing consensus sequence and in silico or computational prediction software programs (Splice AI exome) do not predict a difference in splicing. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time although we would lean towards a more benign role for this variant. This variant is classified as likely benign. -

Oct 13, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

KMT2C-related disorder Benign:1
Jun 01, 2022
PreventionGenetics, part of Exact Sciences
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

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

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
Pathogenic
0.76
BayesDel_addAF
Benign
-0.053
T
BayesDel_noAF
Uncertain
0.12
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.51
D;D;.
Eigen
Uncertain
0.40
Eigen_PC
Uncertain
0.53
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.90
.;D;D
M_CAP
Uncertain
0.099
D
MetaRNN
Benign
0.11
T;T;T
MetaSVM
Benign
-0.88
T
MutationAssessor
Benign
1.5
L;L;.
PrimateAI
Uncertain
0.66
T
PROVEAN
Pathogenic
-4.7
D;.;D
REVEL
Uncertain
0.55
Sift
Benign
0.081
T;.;T
Sift4G
Benign
0.24
.;.;T
Polyphen
1.0
D;D;.
Vest4
0.60
MVP
0.72
MPC
1.3
ClinPred
0.33
T
GERP RS
5.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.31
gMVP
0.73

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: rs182572555; hg19: chr7-151845490; API