10-74842966-A-G

Position:

chr10-74842966-A-G

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 1P and 7B. PP2BP4_ModerateBS1_SupportingBS2

The NM_012330.4(KAT6B):c.109A>G(p.Ser37Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000198 in 1,614,136 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

KAT6B
NM_012330.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.91

Variant links:

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), KAT6B. . Gene score misZ 2.8874 (greater than the threshold 3.09). Trascript score misZ 4.8748 (greater than threshold 3.09). GenCC has associacion of gene with RASopathy, genitopatellar syndrome, KAT6B-related multiple congenital anomalies syndrome, blepharophimosis - intellectual disability syndrome, SBBYS type.

BP4

Computational evidence support a benign effect (MetaRNN=0.22366789).

BS1

Variant frequency is greater than expected in population nfe. gnomad4_exome allele frequency = 0.0000212 (31/1461894) while in subpopulation NFE AF= 0.0000225 (25/1112012). AF 95% confidence interval is 0.0000154. There are 0 homozygotes in gnomad4_exome. There are 17 alleles in male gnomad4_exome subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

BS2

High AC in GnomAdExome4 at 31 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KAT6B	NM_012330.4 linkuse as main transcript	c.109A>G	p.Ser37Gly	missense_variant	3/18	ENST00000287239.10	NP_036462.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
KAT6B	ENST00000287239.10 linkuse as main transcript	c.109A>G	p.Ser37Gly	missense_variant	3/18	1	NM_012330.4	ENSP00000287239	P2	Q8WYB5-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152242

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251472

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135908

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000212

AC:

AN:

1461894

Hom.:

Cov.:

AF XY:

0.0000234

AC XY:

AN XY:

727248

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:

0.0000187

Gnomad4 NFE exome

AF:

0.0000225

Gnomad4 OTH exome

AF:

0.0000828

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152242

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74370

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000151

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Genitopatellar syndrome

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 02, 2023

This sequence change replaces serine, which is neutral and polar, with glycine, which is neutral and non-polar, at codon 37 of the KAT6B protein (p.Ser37Gly). This variant is present in population databases (rs770545156, gnomAD no frequency). This variant has not been reported in the literature in individuals affected with KAT6B-related conditions. 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) performed at Invitae indicates that this missense variant is not expected to disrupt KAT6B protein function with a negative predictive value of 80%. 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Uncertain

0.013

BayesDel_noAF

Benign

-0.22

CADD

Benign

DANN

Benign

0.86

DEOGEN2

Uncertain

0.43

.;T;.;.;T;.;.;.;.;.;.;.;.;.;.;.;T;.;.;.;.;.;.;.;.

Eigen

Benign

0.0057

Eigen_PC

Benign

0.19

FATHMM_MKL

Uncertain

0.88

M_CAP

Benign

0.021

MetaRNN

Benign

0.22

T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.69

MutationAssessor

Benign

1.5

.;L;.;L;L;L;.;.;.;.;.;L;.;L;.;L;L;.;.;.;.;.;.;L;.

MutationTaster

Benign

1.0

N;N;N;N;N

PrimateAI

Uncertain

0.62

PROVEAN

Uncertain

-2.8

.;.;.;.;.;D;.;.;.;.;.;.;.;D;.;D;D;.;.;.;.;.;.;D;.

REVEL

Benign

0.25

Sift

Benign

0.18

.;.;.;.;.;T;.;.;.;.;.;.;.;T;.;T;T;.;.;.;.;.;.;T;.

Sift4G

Benign

0.12

.;.;.;.;.;T;.;.;.;.;.;.;.;T;.;T;T;.;.;.;.;.;.;T;.

Polyphen

0.10, 0.17

.;B;.;B;B;B;.;.;.;.;.;B;.;B;.;B;B;.;.;.;.;.;.;B;.

Vest4

0.39, 0.39, 0.36, 0.34, 0.34

MutPred

0.23

Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);

MVP

0.46

MPC

0.40

ClinPred

0.26

GERP RS

4.9

Varity_R

0.16

gMVP

0.44

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

LitVar

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

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over