X-129810954-C-T

Variant names:

Variant summary

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

The NM_016032.4(ZDHHC9):c.929G>A(p.Arg310Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000356 in 1,209,294 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 14 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000027 ( 0 hom., 2 hem., cov: 22)

Exomes 𝑓: 0.000036 ( 0 hom. 12 hem. )

Consequence

ZDHHC9
NM_016032.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 4.00

Variant links:

Genes affected

ZDHHC9 (HGNC:18475): (zinc finger DHHC-type palmitoyltransferase 9) This gene encodes an integral membrane protein that is a member of the zinc finger DHHC domain-containing protein family. The encoded protein forms a complex with golgin subfamily A member 7 and functions as a palmitoyltransferase. This protein specifically palmitoylates HRAS and NRAS. Mutations in this gene are associated with X-linked cognitive disability. Alternate splicing results in multiple transcript variants that encode the same protein.[provided by RefSeq, May 2010]

ZDHHC9 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=0.0873273).

BS2

High Hemizygotes in GnomAd4 at 2 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ZDHHC9	NM_016032.4 link	c.929G>A	p.Arg310Gln	missense_variant	Exon 10 of 11	ENST00000357166.11	NP_057116.2	Q9Y397
ZDHHC9	NM_001008222.3 link	c.929G>A	p.Arg310Gln	missense_variant	Exon 9 of 10		NP_001008223.1	Q9Y397

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ZDHHC9	ENST00000357166.11 link	c.929G>A	p.Arg310Gln	missense_variant	Exon 10 of 11	1	NM_016032.4	ENSP00000349689.6		Q9Y397
ZDHHC9	ENST00000371064.7 link	c.929G>A	p.Arg310Gln	missense_variant	Exon 9 of 10	1		ENSP00000360103.3		Q9Y397

Frequencies

GnomAD3 genomes

AF:

0.0000269

AC:

AN:

111320

Hom.:

Cov.:

AF XY:

0.0000597

AC XY:

AN XY:

33514

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000286

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:

0.0000164

AC:

AN:

183235

Hom.:

AF XY:

0.00

AC XY:

AN XY:

67681

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000730

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:

0.0000122

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000364

AC:

AN:

1097974

Hom.:

Cov.:

AF XY:

0.0000330

AC XY:

AN XY:

363332

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000284

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:

0.0000463

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000269

AC:

AN:

111320

Hom.:

Cov.:

AF XY:

0.0000597

AC XY:

AN XY:

33514

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000286

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:

0.0000491

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Syndromic X-linked intellectual disability Raymond type

Uncertain:2

Jan 20, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 310 of the ZDHHC9 protein (p.Arg310Gln). This variant is present in population databases (rs753387074, gnomAD 0.008%). This variant has not been reported in the literature in individuals affected with ZDHHC9-related conditions. ClinVar contains an entry for this variant (Variation ID: 575731). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt ZDHHC9 protein function with a negative predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Dec 28, 2021

Revvity Omics, Revvity

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Inborn genetic diseases

Uncertain:1

Jul 02, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.929G>A (p.R310Q) alteration is located in exon 10 (coding exon 8) of the ZDHHC9 gene. This alteration results from a G to A substitution at nucleotide position 929, causing the arginine (R) at amino acid position 310 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Intellectual disability

Uncertain:1

Sep 10, 2020

Diagnostic Laboratory, Strasbourg University Hospital

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.067

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.51

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.021

T;T

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Benign

0.77

.;T

M_CAP

Benign

0.0070

MetaRNN

Benign

0.087

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.58

N;N

PrimateAI

Uncertain

0.52

PROVEAN

Benign

0.63

N;N

REVEL

Benign

0.058

Sift

Benign

0.32

T;T

Sift4G

Benign

0.64

T;T

Polyphen

0.14

B;B

Vest4

0.23

MutPred

0.19

Loss of catalytic residue at R310 (P = 0.098);Loss of catalytic residue at R310 (P = 0.098);

MVP

0.42

MPC

1.2

ClinPred

0.14

GERP RS

5.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.16

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