chrX-44873578-T-TACCGCCGCCGCTGCC

Variant names:

• chrX-44873578-T-TACCGCCGCCGCTGCC
• rs2146441027
• NM_001291415.2:c.28_42dupACCGCCGCCGCTGCC

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP3

The NM_001291415.2(KDM6A):​c.28_42dupACCGCCGCCGCTGCC​(p.Thr10_Ala14dup) variant causes a conservative inframe insertion change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. It is difficult to determine the true allele frequency of this variant because it is of type INS_BIG, and the frequency of such variant types in population databases may be underestimated and unreliable. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. A15A) has been classified as Benign.

• Frequency: Genomes: not found (cov: 23)
• Consequence: KDM6A NM_001291415.2 conservative_inframe_insertion
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.99
• Publications: 0 publications found

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]

KDM6A Gene-Disease associations (from GenCC):

• Kabuki syndrome 2

  Inheritance: XL Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics, ClinGen
• Kabuki syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -1 ACMG points.

• BP3: Nonframeshift variant in repetitive region in NM_001291415.2

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001291415.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KDM6A	NM_001291415.2	MANE Select	c.28_42dupACCGCCGCCGCTGCC	p.Thr10_Ala14dup	conservative_inframe_insertion	Exon 1 of 30	NP_001278344.1	A0A087X0R0
	KDM6A	NM_001419809.1		c.28_42dupACCGCCGCCGCTGCC	p.Thr10_Ala14dup	conservative_inframe_insertion	Exon 1 of 31	NP_001406738.1
	KDM6A	NM_001419810.1		c.28_42dupACCGCCGCCGCTGCC	p.Thr10_Ala14dup	conservative_inframe_insertion	Exon 1 of 30	NP_001406739.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KDM6A	ENST00000611820.5	TSL:1 MANE Select	c.28_42dupACCGCCGCCGCTGCC	p.Thr10_Ala14dup	conservative_inframe_insertion	Exon 1 of 30	ENSP00000483595.2	A0A087X0R0
	KDM6A	ENST00000382899.9	TSL:1	c.28_42dupACCGCCGCCGCTGCC	p.Thr10_Ala14dup	conservative_inframe_insertion	Exon 1 of 29	ENSP00000372355.6	F8W8R6
	KDM6A	ENST00000377967.9	TSL:1	c.28_42dupACCGCCGCCGCTGCC	p.Thr10_Ala14dup	conservative_inframe_insertion	Exon 1 of 29	ENSP00000367203.4	O15550

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 23

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Kabuki syndrome 2 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		3.0

Splicing

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

Other links and lift over

dbSNP: rs2146441027; hg19: chrX-44732824;