rs140585698

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_178425.4(HDAC9):​c.494C>A​(p.Thr165Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,352 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T165S) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

HDAC9
NM_178425.4 missense

Scores

3
15

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.55

Publications

0 publications found
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 Gene-Disease associations (from GenCC):
  • auriculocondylar syndrome 4
    Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.1522235).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_178425.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
HDAC9
NM_178425.4
MANE Select
c.494C>Ap.Thr165Asn
missense
Exon 5 of 26NP_848512.1Q9UKV0-7
HDAC9
NM_178423.3
c.485C>Ap.Thr162Asn
missense
Exon 5 of 26NP_848510.1Q9UKV0-5
HDAC9
NM_001321868.2
c.551C>Ap.Thr184Asn
missense
Exon 6 of 26NP_001308797.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
HDAC9
ENST00000686413.1
MANE Select
c.494C>Ap.Thr165Asn
missense
Exon 5 of 26ENSP00000509161.1Q9UKV0-7
HDAC9
ENST00000441542.7
TSL:1
c.494C>Ap.Thr165Asn
missense
Exon 4 of 25ENSP00000408617.2Q9UKV0-7
HDAC9
ENST00000406451.8
TSL:1
c.485C>Ap.Thr162Asn
missense
Exon 5 of 26ENSP00000384657.3Q9UKV0-5

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461352
Hom.:
0
Cov.:
34
AF XY:
0.00000138
AC XY:
1
AN XY:
726954
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
33464
American (AMR)
AF:
0.00
AC:
0
AN:
44600
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26122
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39692
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86244
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53390
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
9.00e-7
AC:
1
AN:
1111714
Other (OTH)
AF:
0.00
AC:
0
AN:
60360
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.325
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
Cov.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.082
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
18
DANN
Uncertain
0.98
DEOGEN2
Benign
0.41
T
Eigen
Benign
-0.086
Eigen_PC
Benign
0.10
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.94
D
M_CAP
Benign
0.0045
T
MetaRNN
Benign
0.15
T
MetaSVM
Benign
-0.98
T
MutationAssessor
Benign
1.7
L
PhyloP100
1.6
PrimateAI
Benign
0.42
T
PROVEAN
Benign
-0.37
N
REVEL
Benign
0.11
Sift
Benign
0.45
T
Sift4G
Benign
0.63
T
Polyphen
0.078
B
Vest4
0.30
MutPred
0.22
Loss of glycosylation at T162 (P = 0.0189)
MVP
0.56
MPC
0.38
ClinPred
0.20
T
GERP RS
4.8
Varity_R
0.11
gMVP
0.10
Mutation Taster
=71/29
polymorphism

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

Other links and lift over

dbSNP: rs140585698; hg19: chr7-18631217; API