rs183702050

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_003482.4(KMT2D):​c.13001C>T​(p.Ala4334Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000049 in 1,612,880 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A4334D) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00026 ( 1 hom., cov: 33)
Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

KMT2D
NM_003482.4 missense

Scores

1
16

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -0.00600

Publications

0 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: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics, Laboratory for Molecular Medicine, ClinGen
  • 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: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.019148707).
BP6
Variant 12-49031704-G-A is Benign according to our data. Variant chr12-49031704-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 158727.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000256 (39/152308) while in subpopulation AFR AF = 0.000794 (33/41566). AF 95% confidence interval is 0.00058. There are 1 homozygotes in GnomAd4. There are 14 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
BS2
High AC in GnomAd4 at 39 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003482.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KMT2D
NM_003482.4
MANE Select
c.13001C>Tp.Ala4334Val
missense
Exon 40 of 55NP_003473.3O14686-1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KMT2D
ENST00000301067.12
TSL:5 MANE Select
c.13001C>Tp.Ala4334Val
missense
Exon 40 of 55ENSP00000301067.7O14686-1
KMT2D
ENST00000683543.2
c.13001C>Tp.Ala4334Val
missense
Exon 40 of 56ENSP00000506726.1A0A804HHR9
KMT2D
ENST00000685166.1
c.13010C>Tp.Ala4337Val
missense
Exon 39 of 54ENSP00000509386.1O14686-3

Frequencies

GnomAD3 genomes
AF:
0.000256
AC:
39
AN:
152190
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000796
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000393
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:
0.00
GnomAD2 exomes
AF:
0.0000487
AC:
12
AN:
246216
AF XY:
0.0000374
show subpopulations
Gnomad AFR exome
AF:
0.000660
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000897
Gnomad OTH exome
AF:
0.000167
GnomAD4 exome
AF:
0.0000274
AC:
40
AN:
1460572
Hom.:
0
Cov.:
39
AF XY:
0.0000234
AC XY:
17
AN XY:
726436
show subpopulations
African (AFR)
AF:
0.000896
AC:
30
AN:
33470
American (AMR)
AF:
0.0000673
AC:
3
AN:
44568
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26090
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39676
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85984
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53268
Middle Eastern (MID)
AF:
0.000174
AC:
1
AN:
5738
European-Non Finnish (NFE)
AF:
9.00e-7
AC:
1
AN:
1111456
Other (OTH)
AF:
0.0000829
AC:
5
AN:
60322
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.485
Heterozygous variant carriers
0
4
8
11
15
19
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:
0.000256
AC:
39
AN:
152308
Hom.:
1
Cov.:
33
AF XY:
0.000188
AC XY:
14
AN XY:
74478
show subpopulations
African (AFR)
AF:
0.000794
AC:
33
AN:
41566
American (AMR)
AF:
0.000392
AC:
6
AN:
15304
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68020
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.494
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

Genome Het
Genome Hom
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:
0.0000874
Hom.:
0
Bravo
AF:
0.000298
ESP6500AA
AF:
0.000776
AC:
3
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000745
AC:
9

ClinVar

ClinVar submissions
Significance:Benign/Likely benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
Kabuki syndrome (1)
-
-
1
KMT2D-related disorder (1)
-
-
1
not provided (1)
-
-
1
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.082
BayesDel_addAF
Benign
-0.49
T
BayesDel_noAF
Benign
-0.58
CADD
Benign
18
DANN
Benign
0.91
DEOGEN2
Benign
0.043
T
Eigen
Benign
-0.61
Eigen_PC
Benign
-0.53
FATHMM_MKL
Benign
0.40
N
LIST_S2
Benign
0.51
T
M_CAP
Pathogenic
0.34
D
MetaRNN
Benign
0.019
T
MetaSVM
Benign
-0.69
T
MutationAssessor
Benign
0.0
N
PhyloP100
-0.0060
PrimateAI
Benign
0.41
T
PROVEAN
Benign
-0.91
N
REVEL
Benign
0.21
Sift
Benign
0.30
T
Polyphen
0.0010
B
Vest4
0.050
MVP
0.20
MPC
0.15
ClinPred
0.020
T
GERP RS
3.0
PromoterAI
-0.024
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.033
gMVP
0.11
Mutation Taster
=84/16
polymorphism

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

Other links and lift over

dbSNP: rs183702050; hg19: chr12-49425487; COSMIC: COSV107371834; API