rs183688784

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_003482.4(KMT2D):​c.9726C>T​(p.Ala3242=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00183 in 1,566,778 control chromosomes in the GnomAD database, including 8 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0012 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0019 ( 8 hom. )

Consequence

KMT2D
NM_003482.4 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: 1.41
Variant links:
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.56).
BP6
Variant 12-49037630-G-A is Benign according to our data. Variant chr12-49037630-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 158793.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr12-49037630-G-A is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=1.41 with no splicing effect.
BS2
High AC in GnomAd4 at 186 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KMT2DNM_003482.4 linkuse as main transcriptc.9726C>T p.Ala3242= synonymous_variant 35/55 ENST00000301067.12 NP_003473.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KMT2DENST00000301067.12 linkuse as main transcriptc.9726C>T p.Ala3242= synonymous_variant 35/555 NM_003482.4 ENSP00000301067 A2O14686-1

Frequencies

GnomAD3 genomes
AF:
0.00124
AC:
188
AN:
152216
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000603
Gnomad AMI
AF:
0.00219
Gnomad AMR
AF:
0.00137
Gnomad ASJ
AF:
0.00230
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.0000941
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00187
Gnomad OTH
AF:
0.00143
GnomAD3 exomes
AF:
0.00132
AC:
236
AN:
179368
Hom.:
0
AF XY:
0.00122
AC XY:
117
AN XY:
95620
show subpopulations
Gnomad AFR exome
AF:
0.000404
Gnomad AMR exome
AF:
0.00135
Gnomad ASJ exome
AF:
0.00351
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000419
Gnomad FIN exome
AF:
0.000112
Gnomad NFE exome
AF:
0.00205
Gnomad OTH exome
AF:
0.00185
GnomAD4 exome
AF:
0.00190
AC:
2685
AN:
1414444
Hom.:
8
Cov.:
32
AF XY:
0.00184
AC XY:
1283
AN XY:
699062
show subpopulations
Gnomad4 AFR exome
AF:
0.000403
Gnomad4 AMR exome
AF:
0.00131
Gnomad4 ASJ exome
AF:
0.00332
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000374
Gnomad4 FIN exome
AF:
0.000119
Gnomad4 NFE exome
AF:
0.00222
Gnomad4 OTH exome
AF:
0.00180
GnomAD4 genome
AF:
0.00122
AC:
186
AN:
152334
Hom.:
0
Cov.:
32
AF XY:
0.00109
AC XY:
81
AN XY:
74500
show subpopulations
Gnomad4 AFR
AF:
0.000577
Gnomad4 AMR
AF:
0.00137
Gnomad4 ASJ
AF:
0.00230
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.0000941
Gnomad4 NFE
AF:
0.00185
Gnomad4 OTH
AF:
0.00142
Alfa
AF:
0.00185
Hom.:
0
Bravo
AF:
0.00141
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:7
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Benign, criteria provided, single submitterclinical testingGeneDxJul 16, 2019- -
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenJul 01, 2024KMT2D: BP4, BP7, BS1 -
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
not specified Benign:2
Likely benign, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Feb 03, 2016- -
Benign, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoJan 02, 2018- -
Kabuki syndrome Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 27, 2024- -
KMT2D-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesMar 21, 2024This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.56
CADD
Benign
3.4
DANN
Benign
0.61
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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.

Other links and lift over

dbSNP: rs183688784; hg19: chr12-49431413; COSMIC: COSV56429696; COSMIC: COSV56429696; API