chr10-75029888-TACTATGG-CACA

Variant names:

• chr10-75029888-TACTATGG-CACA
• rs387907364
• NM_012330.4:c.5064_5071delTACTATGGinsCACA

Variant summary

Our verdict is Pathogenic. The variant received 11 ACMG points: 11P and 0B. PVS1 PM2 PP5

The NM_012330.4(KAT6B):​c.5064_5071delTACTATGGinsCACA​(p.Met1690GlufsTer24) variant causes a frameshift, synonymous change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency: Genomes: not found (cov: 32)
• Consequence: KAT6B NM_012330.4 frameshift, synonymous
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 9.60
• Publications: 1 publications found

Genes affected

KAT6B (HGNC:17582): (lysine acetyltransferase 6B) The protein encoded by this gene is a histone acetyltransferase and component of the MOZ/MORF protein complex. In addition to its acetyltransferase activity, the encoded protein has transcriptional activation activity in its N-terminal end and transcriptional repression activity in its C-terminal end. This protein is necessary for RUNX2-dependent transcriptional activation and could be involved in brain development. Mutations have been found in patients with genitopatellar syndrome. A translocation of this gene and the CREBBP gene results in acute myeloid leukemias. Three transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2012]

KAT6B Gene-Disease associations (from GenCC):

• blepharophimosis - intellectual disability syndrome, SBBYS type

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Orphanet
• genitopatellar syndrome

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), G2P
• KAT6B-related multiple congenital anomalies syndrome

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• RASopathy

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

ACMG classification

Our verdict: Pathogenic. The variant received 11 ACMG points.

• PVS1: Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. There are 24 pathogenic variants in the truncated region.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 10-75029888-TACTATGG-CACA is Pathogenic according to our data. Variant chr10-75029888-TACTATGG-CACA is described in ClinVar as Pathogenic. ClinVar VariationId is 50356.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KAT6B	NM_012330.4	c.5064_5071delTACTATGGinsCACA	p.Met1690GlufsTer24	frameshift_variant, synonymous_variant	Exon 18 of 18	ENST00000287239.10	NP_036462.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
KAT6B	ENST00000287239.10	c.5064_5071delTACTATGGinsCACA	p.Met1690GlufsTer24	frameshift_variant, synonymous_variant	Exon 18 of 18	1	NM_012330.4	ENSP00000287239.4

Frequencies

GnomAD3 genomes Cov.: 32

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Blepharophimosis - intellectual disability syndrome, SBBYS type Pathogenic:1

Apr 01, 2013

OMIM

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
PhyloP100		9.6
Mutation Taster		=1/199	disease causing

Splicing

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

Other links and lift over

dbSNP: rs387907364; hg19: chr10-76789646;