7-18634740-G-A

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_178425.4(HDAC9):c.910G>A(p.Glu304Lys) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000568 in 1,567,866 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00028 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000032 ( 0 hom. )

Consequence

HDAC9
NM_178425.4 missense, splice_region

Scores

Splicing: ADA: 0.9558

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.29

Variant links:

Genes affected

HDAC9 (HGNC:14065): (histone deacetylase 9) Histones play a critical role in transcriptional regulation, cell cycle progression, and developmental events. Histone acetylation/deacetylation alters chromosome structure and affects transcription factor access to DNA. The protein encoded by this gene has sequence homology to members of the histone deacetylase family. This gene is orthologous to the Xenopus and mouse MITR genes. The MITR protein lacks the histone deacetylase catalytic domain. It represses MEF2 activity through recruitment of multicomponent corepressor complexes that include CtBP and HDACs. This encoded protein may play a role in hematopoiesis. Multiple alternatively spliced transcripts have been described for this gene but the full-length nature of some of them has not been determined. [provided by RefSeq, Jul 2008]

HDAC9 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.13727376).

BS2

High AC in GnomAd at 43 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HDAC9	NM_178425.4 linkuse as main transcript	c.910G>A	p.Glu304Lys	missense_variant, splice_region_variant	8/26	ENST00000686413.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HDAC9	ENST00000686413.1 linkuse as main transcript	c.910G>A	p.Glu304Lys	missense_variant, splice_region_variant	8/26		NM_178425.4	P4	Q9UKV0-7

Frequencies

GnomAD3 genomes

AF:

0.000283

AC:

AN:

151952

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00101

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000657

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:

0.00

GnomAD3 exomes

AF:

0.0000890

AC:

AN:

202278

Hom.:

AF XY:

0.0000462

AC XY:

AN XY:

108148

show subpopulations

Gnomad AFR exome

AF:

0.00125

Gnomad AMR exome

AF:

0.000100

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:

0.00

GnomAD4 exome

AF:

0.0000325

AC:

AN:

1415796

Hom.:

Cov.:

AF XY:

0.0000270

AC XY:

AN XY:

702428

show subpopulations

Gnomad4 AFR exome

AF:

0.00117

Gnomad4 AMR exome

AF:

0.0000730

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000193

Gnomad4 NFE exome

AF:

0.00000278

Gnomad4 OTH exome

AF:

0.0000170

GnomAD4 genome

AF:

0.000283

AC:

AN:

152070

Hom.:

Cov.:

AF XY:

0.000202

AC XY:

AN XY:

74320

show subpopulations

Gnomad4 AFR

AF:

0.00101

Gnomad4 AMR

AF:

0.0000656

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:

0.00

Alfa

AF:

0.0000807

Hom.:

Bravo

AF:

0.000412

ESP6500AA

AF:

0.00163

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000109

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

May 09, 2023

The c.910G>A (p.E304K) alteration is located in exon 7 (coding exon 7) of the HDAC9 gene. This alteration results from a G to A substitution at nucleotide position 910, causing the glutamic acid (E) at amino acid position 304 to be replaced by a lysine (K). 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

0.095

BayesDel_addAF

Benign

-0.011

BayesDel_noAF

Pathogenic

0.17

Cadd

Pathogenic

Dann

Pathogenic

1.0

Eigen

Pathogenic

0.88

Eigen_PC

Pathogenic

0.85

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Uncertain

0.97

D;D;D;D;D;D;D;D;D;D;D

M_CAP

Benign

0.017

MetaRNN

Benign

0.14

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

MetaSVM

Uncertain

-0.23

MutationTaster

Benign

1.0

D;D;D;D;D;D;D;D;D;D

PrimateAI

Uncertain

0.62

PROVEAN

Benign

-1.2

N;.;N;N;N;N;N;N;N;N;N

REVEL

Uncertain

0.29

Sift

Benign

0.14

T;.;D;T;T;T;T;T;T;D;T

Sift4G

Benign

0.13

T;D;T;T;D;D;T;T;T;T;D

Polyphen

1.0, 1.0, 1.0

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

Vest4

0.85

MVP

0.81

MPC

0.99

ClinPred

0.17

GERP RS

5.7

Varity_R

0.12

gMVP

0.71

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.96

dbscSNV1_RF

Pathogenic

0.82

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