rs748969707

Variant summary

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

The NM_003482.4(KMT2D):​c.8137G>A​(p.Ala2713Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000205 in 1,612,126 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. A2713E) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

KMT2D
NM_003482.4 missense

Scores

1
7
9

Clinical Significance

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

Conservation

PhyloP100: 4.88

Publications

3 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: Likely_benign. The variant received -5 ACMG points.

BP6
Variant 12-49039527-C-T is Benign according to our data. Variant chr12-49039527-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 547452.
BS2
High AC in GnomAdExome4 at 29 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.8137G>Ap.Ala2713Thr
missense
Exon 33 of 55NP_003473.3O14686-1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KMT2D
ENST00000301067.12
TSL:5 MANE Select
c.8137G>Ap.Ala2713Thr
missense
Exon 33 of 55ENSP00000301067.7O14686-1
KMT2D
ENST00000683543.2
c.8137G>Ap.Ala2713Thr
missense
Exon 33 of 56ENSP00000506726.1A0A804HHR9
KMT2D
ENST00000685166.1
c.8146G>Ap.Ala2716Thr
missense
Exon 32 of 54ENSP00000509386.1O14686-3

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152222
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000204
AC:
5
AN:
244692
AF XY:
0.0000225
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000584
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000272
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000199
AC:
29
AN:
1459904
Hom.:
0
Cov.:
32
AF XY:
0.0000220
AC XY:
16
AN XY:
726228
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33462
American (AMR)
AF:
0.0000449
AC:
2
AN:
44572
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26070
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39678
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86100
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52510
Middle Eastern (MID)
AF:
0.000173
AC:
1
AN:
5766
European-Non Finnish (NFE)
AF:
0.0000225
AC:
25
AN:
1111442
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60304
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.513
Heterozygous variant carriers
0
2
3
5
6
8
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:
0.0000263
AC:
4
AN:
152222
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74358
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41456
American (AMR)
AF:
0.000131
AC:
2
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5202
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68038
Other (OTH)
AF:
0.00
AC:
0
AN:
2088
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.550
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:
0.0000390
Hom.:
0
Bravo
AF:
0.0000453
ExAC
AF:
0.0000414
AC:
5

ClinVar

ClinVar submissions
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
-
KMT2D-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.067
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.26
CADD
Benign
22
DANN
Benign
0.96
DEOGEN2
Benign
0.049
T
Eigen
Uncertain
0.59
Eigen_PC
Uncertain
0.61
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Benign
0.64
T
M_CAP
Pathogenic
0.31
D
MetaRNN
Uncertain
0.47
T
MetaSVM
Uncertain
0.11
D
MutationAssessor
Benign
1.4
L
PhyloP100
4.9
PrimateAI
Uncertain
0.57
T
PROVEAN
Benign
-1.4
N
REVEL
Uncertain
0.35
Sift
Benign
0.069
T
Polyphen
1.0
D
Vest4
0.40
MVP
0.63
MPC
0.36
ClinPred
0.57
D
GERP RS
5.4
Varity_R
0.072
gMVP
0.22
Mutation Taster
=74/26
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: rs748969707; hg19: chr12-49433310; API