12-49051150-G-C

Position:

• chr12-49051150-G-C

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_003482.4(KMT2D):​c.2533C>G​(p.Arg845Gly) 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. 14/21 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. R845L) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: KMT2D NM_003482.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.28

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 Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.051406324).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KMT2D	NM_003482.4	c.2533C>G	p.Arg845Gly	missense_variant	11/55	ENST00000301067.12	NP_003473.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
KMT2D	ENST00000301067.12	c.2533C>G	p.Arg845Gly	missense_variant	11/55	5	NM_003482.4	ENSP00000301067.7
KMT2D	ENST00000683543.2	c.2533C>G	p.Arg845Gly	missense_variant	11/56			ENSP00000506726.1
KMT2D	ENST00000685166.1	c.2533C>G	p.Arg845Gly	missense_variant	10/54			ENSP00000509386.1
KMT2D	ENST00000692637.1	c.2533C>G	p.Arg845Gly	missense_variant	10/54			ENSP00000509666.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1360278 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 668360

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.28	T
BayesDel_noAF	Benign	-0.64
CADD	Benign	0.14
DANN	Benign	0.25
DEOGEN2	Benign	0.036	T
Eigen	Benign	-1.7
Eigen_PC	Benign	-1.9
FATHMM_MKL	Benign	0.090	N
LIST_S2	Benign	0.66	T
M_CAP	Uncertain	0.25	D
MetaRNN	Benign	0.051	T
MetaSVM	Benign	-0.93	T
MutationAssessor	Benign	0.0	N
PrimateAI	Benign	0.19	T
PROVEAN	Benign	0.35	N
REVEL	Benign	0.030
Sift	Uncertain	0.016	D
Polyphen		0.0010	B
Vest4		0.070
MutPred		0.27		Loss of stability (P = 0.064);
MVP		0.093
MPC		0.24
ClinPred		0.066	T
GERP RS		-7.4
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.067
gMVP		0.16

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: chr12-49444933;