chr12-47789897-A-T

Position:

• chr12-47789897-A-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP3

The NM_015401.5(HDAC7):​c.2007T>A​(p.Asn669Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: HDAC7 NM_015401.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.848

Genes affected

HDAC7 (HGNC:14067): (histone deacetylase 7) 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 mouse HDAC7 gene whose protein promotes repression mediated via the transcriptional corepressor SMRT. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.822

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
HDAC7	NM_015401.5	c.2007T>A	p.Asn669Lys	missense_variant	17/26	ENST00000080059.12	NP_056216.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
HDAC7	ENST00000080059.12	c.2007T>A	p.Asn669Lys	missense_variant	17/26	1	NM_015401.5	ENSP00000080059

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

May 13, 2022

The c.2007T>A (p.N669K) alteration is located in exon 17 (coding exon 17) of the HDAC7 gene. This alteration results from a T to A substitution at nucleotide position 2007, causing the asparagine (N) at amino acid position 669 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	Pathogenic	0.99
BayesDel_addAF	Benign	-0.021	T
BayesDel_noAF	Benign	-0.27
CADD	Benign	11
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.65	.;.;.;.;D
Eigen	Benign	-0.51
Eigen_PC	Benign	-0.75
FATHMM_MKL	Benign	0.41	N
LIST_S2	Uncertain	0.86	D;D;D;D;D
M_CAP	Benign	0.047	D
MetaRNN	Pathogenic	0.82	D;D;D;D;D
MetaSVM	Uncertain	-0.010	T
MutationAssessor	Uncertain	2.4	.;.;.;.;M
MutationTaster	Benign	1.0	D;D;D;D;D
PrimateAI	Uncertain	0.78	T
PROVEAN	Pathogenic	-5.4	D;D;D;D;D
REVEL	Uncertain	0.53
Sift	Uncertain	0.0010	D;D;D;D;D
Sift4G	Uncertain	0.0020	D;D;D;D;D
Polyphen		0.87	P;D;D;.;.
Vest4		0.91
MutPred		0.61		Gain of catalytic residue at D665 (P = 0.0042);.;.;.;.;
MVP		0.69
MPC		1.0
ClinPred		1.0	D
GERP RS		-8.3
Varity_R		0.95
gMVP		0.95

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr12-48183680;