Variant 13-21387626-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001330059.2(ZDHHC20):c.736C>T(p.Arg246Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000117 in 1,453,804 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R246H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

ZDHHC20
NM_001330059.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.82

Variant links:

Genes affected

ZDHHC20 (HGNC:20749): (zinc finger DHHC-type palmitoyltransferase 20) Enables protein-cysteine S-palmitoyltransferase activity and zinc ion binding activity. Involved in peptidyl-L-cysteine S-palmitoylation. Located in intracellular membrane-bounded organelle and plasma membrane. Is integral component of Golgi membrane. [provided by Alliance of Genome Resources, Apr 2022]

ZDHHC20 links:

MIPEPP3 (HGNC:):

MIPEPP3 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.3466351).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ZDHHC20	NM_001330059.2 linkuse as main transcript	c.736C>T	p.Arg246Cys	missense_variant	9/13	ENST00000400590.8
MIPEPP3	NR_046461.1 linkuse as main transcript	n.571-4124G>A		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ZDHHC20	ENST00000400590.8 linkuse as main transcript	c.736C>T	p.Arg246Cys	missense_variant	9/13	5	NM_001330059.2	P1	Q5W0Z9-1

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151828

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.000288

Gnomad EAS

AF:

0.000192

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

GnomAD4 exome

AF:

0.0000115

AC:

AN:

1301976

Hom.:

Cov.:

AF XY:

0.00000938

AC XY:

AN XY:

639648

show subpopulations

Gnomad4 AFR exome

AF:

0.000108

Gnomad4 AMR exome

AF:

0.0000777

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000318

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000680

Gnomad4 OTH exome

AF:

0.0000375

GnomAD4 genome

AF:

0.0000132

AC:

AN:

151828

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74130

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.000288

Gnomad4 EAS

AF:

0.000192

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 14, 2021

The c.736C>T (p.R246C) alteration is located in exon 9 (coding exon 9) of the ZDHHC20 gene. This alteration results from a C to T substitution at nucleotide position 736, causing the arginine (R) at amino acid position 246 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

Pathogenic

0.66

BayesDel_addAF

Pathogenic

0.18

BayesDel_noAF

Uncertain

0.020

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Benign

0.15

.;T;T;.;T

Eigen

Uncertain

0.28

Eigen_PC

Uncertain

0.28

FATHMM_MKL

Uncertain

0.89

LIST_S2

Uncertain

0.87

D;D;.;D;D

M_CAP

Uncertain

0.11

MetaRNN

Benign

0.35

T;T;T;T;T

MetaSVM

Benign

-0.33

MutationAssessor

Uncertain

2.9

M;.;M;M;M

MutationTaster

Benign

1.0

D;D;D;D;D

PrimateAI

Uncertain

0.54

PROVEAN

Pathogenic

-5.1

D;D;D;D;D

REVEL

Benign

0.25

Sift

Benign

0.11

T;T;T;T;T

Sift4G

Uncertain

0.039

D;D;D;D;D

Polyphen

0.12

B;P;.;.;.

Vest4

0.50

MVP

0.38

MPC

1.7

ClinPred

0.98

GERP RS

4.4

Varity_R

0.43

gMVP

0.86

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