Genetic Variant ZDHHC2:p.Ser123Cys (chr8-17195619-C-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_016353.5(ZDHHC2):c.368C>G(p.Ser123Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,458 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

ZDHHC2
NM_016353.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.13

Variant links:

Genes affected

ZDHHC2 (HGNC:18469): (zinc finger DHHC-type palmitoyltransferase 2) Enables protein homodimerization activity and protein-cysteine S-palmitoyltransferase activity. Involved in several processes, including peptidyl-L-cysteine S-palmitoylation; regulation of protein catabolic process; and regulation of protein localization to plasma membrane. Located in Golgi apparatus and endoplasmic reticulum membrane. [provided by Alliance of Genome Resources, Apr 2022]

ZDHHC2 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ZDHHC2	NM_016353.5 link	c.368C>G	p.Ser123Cys	missense_variant	Exon 4 of 13	ENST00000262096.13	NP_057437.1	Q9UIJ5A0A140VKD9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ZDHHC2	ENST00000262096.13 link	c.368C>G	p.Ser123Cys	missense_variant	Exon 4 of 13	1	NM_016353.5	ENSP00000262096.8		Q9UIJ5
ZDHHC2	ENST00000522184.1 link	c.233C>G	p.Ser78Cys	missense_variant	Exon 4 of 7	3		ENSP00000430317.1		E5RFZ7

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000402

AC:

AN:

249040

Hom.:

AF XY:

0.00000740

AC XY:

AN XY:

135096

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000556

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:

6.84e-7

AC:

AN:

1461458

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726998

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

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

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 12, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.368C>G (p.S123C) alteration is located in exon 4 (coding exon 4) of the ZDHHC2 gene. This alteration results from a C to G substitution at nucleotide position 368, causing the serine (S) at amino acid position 123 to be replaced by a cysteine (C). 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

0.26

BayesDel_addAF

Uncertain

0.039

BayesDel_noAF

Uncertain

-0.010

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Benign

0.16

T;T

Eigen

Pathogenic

0.82

Eigen_PC

Pathogenic

0.76

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Pathogenic

0.97

D;D

M_CAP

Benign

0.080

MetaRNN

Uncertain

0.55

D;D

MetaSVM

Benign

-0.67

MutationAssessor

Pathogenic

3.4

M;.

PrimateAI

Uncertain

0.78

PROVEAN

Uncertain

-4.0

D;D

REVEL

Uncertain

0.46

Sift

Uncertain

0.0010

D;D

Sift4G

Uncertain

0.011

D;D

Polyphen

1.0

D;.

Vest4

0.88

MutPred

0.48

Loss of glycosylation at S123 (P = 0.0506);.;

MVP

0.23

MPC

0.17

ClinPred

1.0

GERP RS

4.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.52

gMVP

0.66

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

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