12-49040319-A-T

Variant names:

• chr12-49040319-A-T
• NM_003482.4:c.7451T>A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_003482.4(KMT2D):​c.7451T>A​(p.Leu2484Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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: 0.686

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KMT2D	NM_003482.4	c.7451T>A	p.Leu2484Gln	missense_variant	Exon 32 of 55	ENST00000301067.12	NP_003473.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
KMT2D	ENST00000301067.12	c.7451T>A	p.Leu2484Gln	missense_variant	Exon 32 of 55	5	NM_003482.4	ENSP00000301067.7

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 35

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.17
BayesDel_addAF	Uncertain	0.015	T
BayesDel_noAF	Benign	-0.22
CADD	Benign	21
DANN	Benign	0.91
DEOGEN2	Benign	0.035	T
Eigen	Benign	0.15
Eigen_PC	Benign	0.16
FATHMM_MKL	Benign	0.33	N
LIST_S2	Benign	0.75	T
M_CAP	Pathogenic	0.66	D
MetaRNN	Uncertain	0.44	T
MetaSVM	Benign	-0.62	T
MutationAssessor	Benign	0.55	N
PrimateAI	Uncertain	0.62	T
PROVEAN	Benign	0.81	N
REVEL	Uncertain	0.36
Sift	Benign	0.077	T
Polyphen		0.97	D
Vest4		0.66
MutPred		0.21		Gain of solvent accessibility (P = 0.0374);
MVP		0.34
MPC		0.65
ClinPred		0.35	T
GERP RS		5.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.14
gMVP		0.22

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: chr12-49434102;