rs1555185696

chr12-49026377-C-Achr12-49026377-C-Gchr12-49026377-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 3P and 1B. PM2 PP2 BP4

The NM_003482.4(KMT2D):c.15589G>T(p.Ala5197Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A5197T) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: KMT2D NM_003482.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.933

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
• PP2: Missense variant where missense usually causes diseases, KMT2D
• BP4: Computational evidence support a benign effect (MetaRNN=0.28966323).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
KMT2D	NM_003482.4	c.15589G>T	p.Ala5197Ser	missense_variant	49/55	ENST00000301067.12

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
KMT2D	ENST00000301067.12	c.15589G>T	p.Ala5197Ser	missense_variant	49/55	5	NM_003482.4	A2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.094
BayesDel_addAF	Benign	-0.052	T
BayesDel_noAF	Benign	-0.31
Cadd	Uncertain	24
Dann	Benign	0.97
DEOGEN2	Benign	0.11	T
Eigen	Uncertain	0.26
Eigen_PC	Uncertain	0.34
FATHMM_MKL	Uncertain	0.83	D
LIST_S2	Uncertain	0.88	D
M_CAP	Benign	0.070	D
MetaRNN	Benign	0.29	T
MetaSVM	Benign	-0.30	T
MutationAssessor	Benign	0.64	N
MutationTaster	Benign	0.99	D
PrimateAI	Uncertain	0.70	T
PROVEAN	Benign	-0.11	N
REVEL	Benign	0.28
Sift	Benign	0.28	T
Polyphen		0.78	P
Vest4		0.41
MutPred		0.44		Gain of relative solvent accessibility (P = 0.0104);
MVP		0.63
MPC		0.89
ClinPred		0.42	T
GERP RS		5.1
Varity_R		0.13
gMVP		0.59

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		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: chr12-49420160;