Variant 17-7845954-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 0P and 3B. BP4_ModerateBS2_Supporting

The NM_001348716.2(KDM6B):c.220C>T(p.Pro74Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000151 in 1,461,582 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: not found (cov: 33)

Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

KDM6B
NM_001348716.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.60

Variant links:

Genes affected

KDM6B (HGNC:29012): (lysine demethylase 6B) The protein encoded by this gene is a lysine-specific demethylase that specifically demethylates di- or tri-methylated lysine 27 of histone H3 (H3K27me2 or H3K27me3). H3K27 trimethylation is a repressive epigenetic mark controlling chromatin organization and gene silencing. This protein can also demethylate non-histone proteins such as retinoblastoma protein. Through its demethylation actvity this gene influences cellular differentiation and development, tumorigenesis, inflammatory diseases, and neurodegenerative diseases. This protein has two classical nuclear localization signals at its N-terminus. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Feb 2017]

KDM6B links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0725933).

BS2

High AC in GnomAdExome4 at 22 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KDM6B	NM_001348716.2 linkuse as main transcript	c.220C>T	p.Pro74Ser	missense_variant	6/24	ENST00000448097.7	NP_001335645.1
KDM6B	NM_001080424.2 linkuse as main transcript	c.220C>T	p.Pro74Ser	missense_variant	5/22		NP_001073893.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
KDM6B	ENST00000448097.7 linkuse as main transcript	c.220C>T	p.Pro74Ser	missense_variant	6/24	5	NM_001348716.2	ENSP00000412513.2	O15054-2
KDM6B	ENST00000254846.9 linkuse as main transcript	c.220C>T	p.Pro74Ser	missense_variant	5/22	1		ENSP00000254846.5	O15054-1
KDM6B	ENST00000570632.1 linkuse as main transcript	c.220C>T	p.Pro74Ser	missense_variant	4/9	5		ENSP00000458445.1	I3L0Z0

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000796

AC:

AN:

251402

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135892

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:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000151

AC:

AN:

1461582

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

727110

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:

0.0000189

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 17, 2021

The c.220C>T (p.P74S) alteration is located in exon 5 (coding exon 2) of the KDM6B gene. This alteration results from a C to T substitution at nucleotide position 220, causing the proline (P) at amino acid position 74 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.081

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.50

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.050

.;T;T

Eigen

Benign

-0.43

Eigen_PC

Benign

-0.26

FATHMM_MKL

Benign

0.68

LIST_S2

Benign

0.71

T;T;T

M_CAP

Benign

0.0046

MetaRNN

Benign

0.073

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.0

N;N;.

PrimateAI

Uncertain

0.52

PROVEAN

Benign

-0.62

N;N;.

REVEL

Benign

0.026

Sift

Uncertain

0.0070

D;D;.

Sift4G

Benign

0.10

T;T;T

Polyphen

0.0030

B;.;.

Vest4

0.25

MutPred

0.21

Gain of phosphorylation at P74 (P = 0.0254);Gain of phosphorylation at P74 (P = 0.0254);Gain of phosphorylation at P74 (P = 0.0254);

MVP

0.093

MPC

0.12

ClinPred

0.14

GERP RS

2.0

Varity_R

0.081

gMVP

0.46

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