12-49022350-G-C

Variant names:

• chr12-49022350-G-C
• NM_003482.4:c.16342C>G

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM1 PM2 PP3

The NM_003482.4(KMT2D):​c.16342C>G​(p.Arg5448Gly) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: KMT2D NM_003482.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.76

Genes affected

KMT2D (HGNC:7133): (lysine methyltransferase 2D) The protein encoded by this gene is a histone methyltransferase that methylates the Lys-4 position of histone H3. The encoded protein is part of a large protein complex called ASCOM, which has been shown to be a transcriptional regulator of the beta-globin and estrogen receptor genes. Mutations in this gene have been shown to be a cause of Kabuki syndrome. [provided by RefSeq, Oct 2010]

ENSG00000288710 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 5 ACMG points.

• PM1: In a domain SET (size 116) in uniprot entity KMT2D_HUMAN there are 41 pathogenic changes around while only 5 benign (89%) in NM_003482.4
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.814

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KMT2D	NM_003482.4	c.16342C>G	p.Arg5448Gly	missense_variant	Exon 53 of 55	ENST00000301067.12	NP_003473.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
KMT2D	ENST00000301067.12	c.16342C>G	p.Arg5448Gly	missense_variant	Exon 53 of 55	5	NM_003482.4	ENSP00000301067.7
ENSG00000288710	ENST00000683988.1	n.313C>G		non_coding_transcript_exon_variant	Exon 3 of 16			ENSP00000506939.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.40	D
BayesDel_noAF	Pathogenic	0.34
CADD	Uncertain	24
DANN	Uncertain	0.98
DEOGEN2	Benign	0.28	T;T
Eigen	Uncertain	0.60
Eigen_PC	Uncertain	0.58
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Pathogenic	0.98	D;D
M_CAP	Pathogenic	0.40	D
MetaRNN	Pathogenic	0.81	D;D
MetaSVM	Uncertain	0.32	D
MutationAssessor	Benign	2.0	M;.
PrimateAI	Pathogenic	0.85	D
PROVEAN	Pathogenic	-6.7	D;D
REVEL	Pathogenic	0.76
Sift	Uncertain	0.0020	D;D
Sift4G	Benign	0.56	.;T
Polyphen		1.0	D;.
Vest4		0.81
MutPred		0.58		Loss of MoRF binding (P = 0.0816);.;
MVP		0.97
MPC		1.9
ClinPred		0.99	D
GERP RS		4.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.83
gMVP		0.99

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr12-49416133;