chr12-49034285-G-A

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP6BS2

The ENST00000301067.12(KMT2D):​c.10522C>T​(p.Arg3508Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000026 in 1,612,764 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R3508Q) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

KMT2D
ENST00000301067.12 missense

Scores

3
9
5

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:2

Conservation

PhyloP100: 2.03

Publications

2 publications found
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]
KMT2D Gene-Disease associations (from GenCC):
  • choanal atresia-athelia-hypothyroidism-delayed puberty-short stature syndrome
    Inheritance: AD Classification: DEFINITIVE, MODERATE Submitted by: Illumina, G2P
  • Kabuki syndrome 1
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Laboratory for Molecular Medicine, ClinGen, Labcorp Genetics (formerly Invitae), Ambry Genetics
  • branchial arch abnormalities, choanal atresia, athelia, hearing loss, and hypothyroidism syndrome
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • Kabuki syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP6
Variant 12-49034285-G-A is Benign according to our data. Variant chr12-49034285-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 547468.
BS2
High AC in GnomAd4 at 5 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000301067.12. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KMT2D
NM_003482.4
MANE Select
c.10522C>Tp.Arg3508Trp
missense
Exon 39 of 55NP_003473.3

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KMT2D
ENST00000301067.12
TSL:5 MANE Select
c.10522C>Tp.Arg3508Trp
missense
Exon 39 of 55ENSP00000301067.7
KMT2D
ENST00000683543.2
c.10522C>Tp.Arg3508Trp
missense
Exon 39 of 56ENSP00000506726.1
KMT2D
ENST00000685166.1
c.10531C>Tp.Arg3511Trp
missense
Exon 38 of 54ENSP00000509386.1

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152110
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.0000294
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.0000362
AC:
9
AN:
248766
AF XY:
0.0000222
show subpopulations
Gnomad AFR exome
AF:
0.0000646
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000355
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000253
AC:
37
AN:
1460654
Hom.:
0
Cov.:
33
AF XY:
0.0000179
AC XY:
13
AN XY:
726450
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33462
American (AMR)
AF:
0.000112
AC:
5
AN:
44708
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26126
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39670
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86234
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53254
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.0000270
AC:
30
AN:
1111110
Other (OTH)
AF:
0.0000332
AC:
2
AN:
60326
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.476
Heterozygous variant carriers
0
2
4
6
8
10
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
152110
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74304
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41418
American (AMR)
AF:
0.0000655
AC:
1
AN:
15270
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10598
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68024
Other (OTH)
AF:
0.000478
AC:
1
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.505
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000301
Hom.:
0
Bravo
AF:
0.0000416
ExAC
AF:
0.0000413
AC:
5
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
Inborn genetic diseases (1)
-
-
1
Kabuki syndrome (1)
-
1
-
Kabuki syndrome 1 (1)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.63
BayesDel_addAF
Benign
-0.013
T
BayesDel_noAF
Uncertain
-0.030
CADD
Uncertain
26
DANN
Benign
0.97
DEOGEN2
Benign
0.25
T
Eigen
Uncertain
0.47
Eigen_PC
Uncertain
0.52
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Pathogenic
0.97
D
M_CAP
Uncertain
0.16
D
MetaRNN
Uncertain
0.53
D
MetaSVM
Uncertain
0.77
D
MutationAssessor
Benign
1.0
L
PhyloP100
2.0
PrimateAI
Benign
0.41
T
PROVEAN
Pathogenic
-5.0
D
REVEL
Uncertain
0.46
Sift
Uncertain
0.0010
D
Polyphen
1.0
D
Vest4
0.49
MutPred
0.27
Loss of disorder (P = 0.0212)
MVP
0.52
MPC
0.65
ClinPred
0.53
D
GERP RS
5.4
PromoterAI
0.0016
Neutral
RBP_binding_hub_radar
0.97
RBP_regulation_power_radar
2.7
Varity_R
0.42
gMVP
0.83
Mutation Taster
=56/44
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs777638253; hg19: chr12-49428068; COSMIC: COSV56449704; COSMIC: COSV56449704; API