rs186577948

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_003482.4(KMT2D):​c.6180C>T​(p.Tyr2060Tyr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000522 in 1,604,854 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 0.0029 ( 4 hom., cov: 32)
Exomes 𝑓: 0.00027 ( 4 hom. )

Consequence

KMT2D
NM_003482.4 synonymous

Scores

2

Clinical Significance

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

Conservation

PhyloP100: 2.00
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 -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.49).
BP6
Variant 12-49041920-G-A is Benign according to our data. Variant chr12-49041920-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 196174.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=2 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00291 (443/152192) while in subpopulation AFR AF= 0.00915 (380/41518). AF 95% confidence interval is 0.00839. There are 4 homozygotes in gnomad4. There are 206 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High AC in GnomAd4 at 443 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
KMT2DNM_003482.4 linkc.6180C>T p.Tyr2060Tyr synonymous_variant Exon 30 of 55 ENST00000301067.12 NP_003473.3 O14686-1Q59FG6Q6PIA1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
KMT2DENST00000301067.12 linkc.6180C>T p.Tyr2060Tyr synonymous_variant Exon 30 of 55 5 NM_003482.4 ENSP00000301067.7 O14686-1

Frequencies

GnomAD3 genomes
AF:
0.00289
AC:
440
AN:
152074
Hom.:
4
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00911
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00400
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000956
GnomAD3 exomes
AF:
0.000667
AC:
157
AN:
235506
Hom.:
3
AF XY:
0.000486
AC XY:
62
AN XY:
127498
show subpopulations
Gnomad AFR exome
AF:
0.00956
Gnomad AMR exome
AF:
0.000547
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000516
GnomAD4 exome
AF:
0.000272
AC:
395
AN:
1452662
Hom.:
4
Cov.:
33
AF XY:
0.000227
AC XY:
164
AN XY:
721760
show subpopulations
Gnomad4 AFR exome
AF:
0.00944
Gnomad4 AMR exome
AF:
0.000691
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:
0.00000181
Gnomad4 OTH exome
AF:
0.000800
GnomAD4 genome
AF:
0.00291
AC:
443
AN:
152192
Hom.:
4
Cov.:
32
AF XY:
0.00277
AC XY:
206
AN XY:
74408
show subpopulations
Gnomad4 AFR
AF:
0.00915
Gnomad4 AMR
AF:
0.00399
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000946
Alfa
AF:
0.00125
Hom.:
1
Bravo
AF:
0.00326
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

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

Submissions by phenotype

not specified Benign:2
Feb 20, 2024
Athena Diagnostics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

May 06, 2015
Eurofins Ntd Llc (ga)
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not provided Benign:2
Nov 10, 2020
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jun 01, 2022
CeGaT Center for Human Genetics Tuebingen
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

KMT2D: BS1, BS2 -

Kabuki syndrome 1 Benign:1
Jan 13, 2022
Fulgent Genetics, Fulgent Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Kabuki syndrome Benign:1
Jan 30, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

KMT2D-related disorder Benign:1
Oct 10, 2022
PreventionGenetics, part of Exact Sciences
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

This variant is classified as 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
-0.49
CADD
Benign
5.4
DANN
Benign
0.49
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: rs186577948; hg19: chr12-49435703; API