Genetic Variant KDM4C:p.Arg27Trp (chr9-6793067-C-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001304340.4(KDM4C):c.-289C>T variant causes a 5 prime UTR premature start codon gain change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000185 in 1,461,870 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

KDM4C
NM_001304340.4 5_prime_UTR_premature_start_codon_gain

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.657

Variant links:

Genes affected

KDM4C (HGNC:17071): (lysine demethylase 4C) This gene is a member of the Jumonji domain 2 (JMJD2) family. The encoded protein is a trimethylation-specific demethylase, and converts specific trimethylated histone residues to the dimethylated form. This enzymatic action regulates gene expression and chromosome segregation. Chromosomal aberrations and changes in expression of this gene may be found in tumor cells. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2015]

KDM4C links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.38022777).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KDM4C	NM_015061.6 link	c.79C>T	p.Arg27Trp	missense_variant	Exon 2 of 22	ENST00000381309.8	NP_055876.2	Q9H3R0-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
KDM4C	ENST00000381309.8 link	c.79C>T	p.Arg27Trp	missense_variant	Exon 2 of 22	1	NM_015061.6	ENSP00000370710.3		Q9H3R0-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000199

AC:

AN:

251488

Hom.:

AF XY:

0.0000294

AC XY:

AN XY:

135920

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000264

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000185

AC:

AN:

1461870

Hom.:

Cov.:

AF XY:

0.0000179

AC XY:

AN XY:

727240

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000447

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000207

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000658

Hom.:

Bravo

AF:

0.0000189

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 07, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.79C>T (p.R27W) alteration is located in exon 2 (coding exon 1) of the KDM4C gene. This alteration results from a C to T substitution at nucleotide position 79, causing the arginine (R) at amino acid position 27 to be replaced by a tryptophan (W). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.18

BayesDel_addAF

Benign

-0.13

BayesDel_noAF

Benign

-0.33

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.20

.;.;.;T;.

Eigen

Uncertain

0.39

Eigen_PC

Uncertain

0.33

FATHMM_MKL

Benign

0.72

LIST_S2

Pathogenic

0.98

D;D;D;D;D

M_CAP

Benign

0.021

MetaRNN

Benign

0.38

T;T;T;T;T

MetaSVM

Benign

-0.92

MutationAssessor

Uncertain

2.0

.;.;M;M;M

PrimateAI

Benign

0.37

PROVEAN

Pathogenic

-6.3

.;D;D;D;D

REVEL

Benign

0.20

Sift

Uncertain

0.0010

.;D;D;D;D

Sift4G

Pathogenic

0.0010

.;D;D;D;D

Polyphen

1.0, 1.0, 1.0

.;D;D;D;.

Vest4

0.60, 0.61, 0.61, 0.59

MutPred

0.57

.;Loss of disorder (P = 0.004);Loss of disorder (P = 0.004);Loss of disorder (P = 0.004);Loss of disorder (P = 0.004);

MVP

0.34

MPC

0.25

ClinPred

0.85

GERP RS

3.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.79

gMVP

0.63

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over