rs200601717

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_003482.4(KMT2D):​c.9662C>A​(p.Thr3221Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000119 in 1,586,374 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. T3221T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00070 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000057 ( 0 hom. )

Consequence

KMT2D
NM_003482.4 missense

Scores

4
13

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:4O:1

Conservation

PhyloP100: 3.18

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: 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 -13 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0077853203).
BP6
Variant 12-49037694-G-T is Benign according to our data. Variant chr12-49037694-G-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 134707.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000696 (106/152344) while in subpopulation AFR AF = 0.0025 (104/41582). AF 95% confidence interval is 0.00211. There are 0 homozygotes in GnomAd4. There are 54 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High AC in GnomAd4 at 106 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.9662C>Ap.Thr3221Asn
missense
Exon 35 of 55NP_003473.3O14686-1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KMT2D
ENST00000301067.12
TSL:5 MANE Select
c.9662C>Ap.Thr3221Asn
missense
Exon 35 of 55ENSP00000301067.7O14686-1
KMT2D
ENST00000683543.2
c.9662C>Ap.Thr3221Asn
missense
Exon 35 of 56ENSP00000506726.1A0A804HHR9
KMT2D
ENST00000685166.1
c.9671C>Ap.Thr3224Asn
missense
Exon 34 of 54ENSP00000509386.1O14686-3

Frequencies

GnomAD3 genomes
AF:
0.000696
AC:
106
AN:
152226
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00251
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.000161
AC:
33
AN:
204738
AF XY:
0.000118
show subpopulations
Gnomad AFR exome
AF:
0.00257
Gnomad AMR exome
AF:
0.0000675
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000112
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000572
AC:
82
AN:
1434030
Hom.:
0
Cov.:
32
AF XY:
0.0000408
AC XY:
29
AN XY:
710756
show subpopulations
African (AFR)
AF:
0.00220
AC:
72
AN:
32760
American (AMR)
AF:
0.0000492
AC:
2
AN:
40610
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25614
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38230
South Asian (SAS)
AF:
0.00
AC:
0
AN:
81960
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51396
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5744
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1098260
Other (OTH)
AF:
0.000135
AC:
8
AN:
59456
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.480
Heterozygous variant carriers
0
7
14
21
28
35
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.000696
AC:
106
AN:
152344
Hom.:
0
Cov.:
32
AF XY:
0.000725
AC XY:
54
AN XY:
74484
show subpopulations
African (AFR)
AF:
0.00250
AC:
104
AN:
41582
American (AMR)
AF:
0.000131
AC:
2
AN:
15312
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
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:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68032
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.491
Heterozygous variant carriers
0
7
13
20
26
33
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:
0.000244
Hom.:
0
Bravo
AF:
0.000695
ESP6500AA
AF:
0.00267
AC:
11
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000232
AC:
28

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
1
not provided (2)
-
-
1
Inborn genetic diseases (1)
-
-
1
Kabuki syndrome (1)
-
-
1
KMT2D-related disorder (1)
-
-
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.074
BayesDel_addAF
Benign
-0.46
T
BayesDel_noAF
Benign
-0.44
CADD
Benign
18
DANN
Benign
0.69
DEOGEN2
Benign
0.051
T
Eigen
Benign
-0.38
Eigen_PC
Benign
-0.23
FATHMM_MKL
Uncertain
0.88
D
LIST_S2
Benign
0.72
T
M_CAP
Uncertain
0.13
D
MetaRNN
Benign
0.0078
T
MetaSVM
Benign
-0.78
T
MutationAssessor
Benign
0.55
N
PhyloP100
3.2
PrimateAI
Uncertain
0.62
T
PROVEAN
Benign
-1.4
N
REVEL
Uncertain
0.30
Sift
Benign
0.033
D
Polyphen
0.0
B
Vest4
0.097
MVP
0.28
MPC
0.17
ClinPred
0.012
T
GERP RS
2.6
Varity_R
0.061
gMVP
0.19
Mutation Taster
=81/19
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: rs200601717; hg19: chr12-49431477; API