3-113954227-C-G

Variant names:

• chr3-113954227-C-G
• rs773281756
• NM_001320466.2:c.689C>G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001320466.2(ZDHHC23):​c.689C>G​(p.Ser230Trp) 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 1,461,874 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 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. S230L) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: ZDHHC23 NM_001320466.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.46
• Publications: 1 publications found

Genes affected

ZDHHC23 (HGNC:28654): (zinc finger DHHC-type palmitoyltransferase 23) Predicted to enable protein-cysteine S-palmitoyltransferase activity. Involved in protein localization to plasma membrane and protein palmitoylation. Predicted to be located in Golgi membrane. Predicted to be integral component of membrane. Predicted to be active in Golgi apparatus and endoplasmic reticulum. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

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=0.21962607).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001320466.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ZDHHC23	NM_001320466.2	MANE Select	c.689C>G	p.Ser230Trp	missense	Exon 3 of 5	NP_001307395.1	A0A1W2PRJ8
	ZDHHC23	NM_001320467.2		c.689C>G	p.Ser230Trp	missense	Exon 3 of 5	NP_001307396.1	A0A1W2PRJ8
	ZDHHC23	NM_001320468.2		c.689C>G	p.Ser230Trp	missense	Exon 3 of 5	NP_001307397.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ZDHHC23	ENST00000638807.2	TSL:5 MANE Select	c.689C>G	p.Ser230Trp	missense	Exon 3 of 5	ENSP00000492287.2	A0A1W2PRJ8
	ZDHHC23	ENST00000330212.7	TSL:1	c.689C>G	p.Ser230Trp	missense	Exon 3 of 6	ENSP00000330485.3	Q8IYP9
	ZDHHC23	ENST00000869326.1		c.689C>G	p.Ser230Trp	missense	Exon 3 of 5	ENSP00000539385.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251188 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000289

Gnomad ASJ exome AF: 0.00

Gnomad EAS 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: 1 AN: 1461874 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 727236

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.0000224 AC: 1 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53412

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1112004

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.22	T
BayesDel_noAF	Benign	-0.47
CADD	Benign	18
DANN	Uncertain	0.98
DEOGEN2	Benign	0.076	T
Eigen	Benign	-0.14
Eigen_PC	Benign	-0.29
FATHMM_MKL	Benign	0.67	D
LIST_S2	Uncertain	0.89	D
M_CAP	Benign	0.022	T
MetaRNN	Benign	0.22	T
MetaSVM	Benign	-0.98	T
MutationAssessor	Benign	1.4	L
PhyloP100		2.5
PrimateAI	Benign	0.33	T
PROVEAN	Uncertain	-2.5	D
REVEL	Benign	0.070
Sift	Uncertain	0.0040	D
Sift4G	Uncertain	0.018	D
Polyphen		0.98	D
Vest4		0.45
MutPred		0.35		Gain of catalytic residue at S230 (P = 0.016)
MVP		0.030
MPC		0.83
ClinPred		0.80	D
GERP RS		3.4
Varity_R		0.11
Mutation Taster		=81/19	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

Other links and lift over

dbSNP: rs773281756; hg19: chr3-113673074;