6-113943462-C-T

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_001527.4(HDAC2):c.1267G>A(p.Asp423Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000435 in 1,609,542 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

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

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

HDAC2
NM_001527.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.44

Variant links:

Genes affected

HDAC2 (HGNC:4853): (histone deacetylase 2) This gene product belongs to the histone deacetylase family. Histone deacetylases act via the formation of large multiprotein complexes, and are responsible for the deacetylation of lysine residues at the N-terminal regions of core histones (H2A, H2B, H3 and H4). This protein forms transcriptional repressor complexes by associating with many different proteins, including YY1, a mammalian zinc-finger transcription factor. Thus, it plays an important role in transcriptional regulation, cell cycle progression and developmental events. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2010]

HDAC2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2

High AC in GnomAdExome4 at 6 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HDAC2	NM_001527.4 link	c.1267G>A	p.Asp423Asn	missense_variant	Exon 12 of 14	ENST00000519065.6	NP_001518.3	Q92769-1
HDAC2	XM_047418692.1 link	c.1177G>A	p.Asp393Asn	missense_variant	Exon 12 of 14		XP_047274648.1
HDAC2	NR_033441.2 link	n.1535G>A		non_coding_transcript_exon_variant	Exon 13 of 15
HDAC2	NR_073443.2 link	n.1465G>A		non_coding_transcript_exon_variant	Exon 12 of 14

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
HDAC2	ENST00000519065.6 link	c.1267G>A	p.Asp423Asn	missense_variant	Exon 12 of 14	1	NM_001527.4	ENSP00000430432.1	Q92769-1
HDAC2	ENST00000368632.6 link	c.1177G>A	p.Asp393Asn	missense_variant	Exon 13 of 15	2		ENSP00000357621.2	Q92769-3
HDAC2	ENST00000519108.5 link	c.1177G>A	p.Asp393Asn	missense_variant	Exon 12 of 14	2		ENSP00000430008.1	Q92769-3
HDAC2	ENST00000523334.1 link	n.4270G>A		non_coding_transcript_exon_variant	Exon 6 of 8	2

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152200

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.0000122

AC:

AN:

246138

Hom.:

AF XY:

0.0000149

AC XY:

AN XY:

133816

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000878

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:

0.00000412

AC:

AN:

1457342

Hom.:

Cov.:

AF XY:

0.00000414

AC XY:

AN XY:

725212

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000673

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000757

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152200

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74364

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000654

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

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 20, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1267G>A (p.D423N) alteration is located in exon 12 (coding exon 12) of the HDAC2 gene. This alteration results from a G to A substitution at nucleotide position 1267, causing the aspartic acid (D) at amino acid position 423 to be replaced by an asparagine (N). 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

Pathogenic

0.88

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.24

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.76

D;.;.

Eigen

Pathogenic

0.94

Eigen_PC

Pathogenic

0.93

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.99

D;.;D

M_CAP

Uncertain

0.12

MetaRNN

Uncertain

0.73

D;D;D

MetaSVM

Uncertain

0.27

MutationAssessor

Pathogenic

3.0

M;.;.

PrimateAI

Pathogenic

0.88

PROVEAN

Uncertain

-3.5

D;D;D

REVEL

Uncertain

0.47

Sift

Uncertain

0.013

D;D;D

Sift4G

Uncertain

0.020

D;D;D

Polyphen

1.0

D;.;.

Vest4

0.65

MutPred

0.40

Loss of helix (P = 0.0376);.;.;

MVP

0.88

MPC

0.64

ClinPred

0.98

GERP RS

6.2

Varity_R

0.44

gMVP

0.35

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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