X-45062742-A-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001291415.2(KDM6A):ā€‹c.1677A>Cā€‹(p.Gln559His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000267 in 112,478 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: š‘“ 0.000027 ( 0 hom., 0 hem., cov: 23)
Exomes š‘“: 0.0000029 ( 0 hom. 2 hem. )
Failed GnomAD Quality Control

Consequence

KDM6A
NM_001291415.2 missense

Scores

5
12

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: 2.18
Variant links:
Genes affected
KDM6A (HGNC:12637): (lysine demethylase 6A) This gene is located on the X chromosome and is the corresponding locus to a Y-linked gene which encodes a tetratricopeptide repeat (TPR) protein. The encoded protein of this gene contains a JmjC-domain and catalyzes the demethylation of tri/dimethylated histone H3. Multiple alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Apr 2014]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.19937742).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KDM6ANM_001291415.2 linkuse as main transcriptc.1677A>C p.Gln559His missense_variant 16/30 ENST00000611820.5 NP_001278344.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KDM6AENST00000611820.5 linkuse as main transcriptc.1677A>C p.Gln559His missense_variant 16/301 NM_001291415.2 ENSP00000483595 P4

Frequencies

GnomAD3 genomes
AF:
0.0000267
AC:
3
AN:
112478
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
34616
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000188
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:
0.000657
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.00000289
AC:
3
AN:
1039225
Hom.:
0
Cov.:
23
AF XY:
0.00000639
AC XY:
2
AN XY:
312901
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
0.00000254
Gnomad4 OTH exome
AF:
0.0000226
GnomAD4 genome
AF:
0.0000267
AC:
3
AN:
112478
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
34616
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000188
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:
0.000657
Bravo
AF:
0.000162
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:3Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Kabuki syndrome 2 Uncertain:2
Uncertain significance, criteria provided, single submitterclinical testingCentre for Mendelian Genomics, University Medical Centre LjubljanaOct 25, 2018This variant was classified as: Uncertain significance. The available evidence on this variant's pathogenicity is insufficient or conflicting. The following ACMG criteria were applied in classifying this variant: PM2. This variant was detected in hemizygous state. -
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 02, 2024This sequence change replaces glutamine, which is neutral and polar, with histidine, which is basic and polar, at codon 507 of the KDM6A protein (p.Gln507His). This variant is present in population databases (rs763587293, gnomAD 0.2%). This variant has not been reported in the literature in individuals affected with KDM6A-related conditions. ClinVar contains an entry for this variant (Variation ID: 520720). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on KDM6A protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsAug 06, 2015- -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxApr 09, 2020In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.22
BayesDel_addAF
Benign
-0.16
T
BayesDel_noAF
Benign
-0.47
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.031
.;.;T;T
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Benign
0.81
T;T;T;T
M_CAP
Benign
0.041
D
MetaRNN
Benign
0.20
T;T;T;T
MetaSVM
Benign
-0.92
T
MutationAssessor
Uncertain
2.2
.;.;.;M
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Uncertain
0.61
T
PROVEAN
Benign
-1.4
.;.;.;N
REVEL
Benign
0.074
Sift
Uncertain
0.0010
.;.;.;D
Sift4G
Benign
0.099
T;T;D;T
Polyphen
0.0010
.;.;.;B
Vest4
0.26
MVP
0.48
MPC
0.11
ClinPred
0.87
D
GERP RS
3.2
Varity_R
0.40
gMVP
0.81

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs763587293; hg19: chrX-44921987; COSMIC: COSV104687003; API