20-5100921-C-A

Variant names:

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM2PP3_StrongPP5_Moderate

The ENST00000342308.10(TMEM230):c.422G>T(p.Arg141Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000031 in 1,613,958 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★).

Frequency

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

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

TMEM230
ENST00000342308.10 missense

Scores

Clinical Significance

Pathogenic criteria provided, single submitter P:1U:1

Conservation

PhyloP100: 4.33

Variant links:

Genes affected

TMEM230 (HGNC:15876): (transmembrane protein 230) This gene encodes a multi-pass transmembrane protein that belongs to the TMEM134/TMEM230 protein family. The encoded protein localizes to secretory and recycling vesicle in the neuron and may be involved in synaptic vesicles trafficking and recycling. Mutations in this gene may be linked to familial Parkinson's disease. [provided by RefSeq, Mar 2017]

TMEM230 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.955

PP5

Variant 20-5100921-C-A is Pathogenic according to our data. Variant chr20-5100921-C-A is described in ClinVar as [Pathogenic]. Clinvar id is 243014.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	Protein	UniProt
TMEM230	NM_001009924.2 link	c.233G>T	p.Arg78Leu	missense_variant	Exon 5 of 5	NP_001009924.1	Q96A57-1
TMEM230	NM_001009925.2 link	c.233G>T	p.Arg78Leu	missense_variant	Exon 4 of 4	NP_001009925.1	Q96A57-1
TMEM230	NM_001330984.2 link	c.233G>T	p.Arg78Leu	missense_variant	Exon 5 of 5	NP_001317913.1	Q96A57-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TMEM230	ENST00000342308.10 link	c.422G>T	p.Arg141Leu	missense_variant	Exon 5 of 5	2	NM_001009923.2	ENSP00000341364.6		Q96A57-2
TMEM230	ENST00000202834.11 link	c.233G>T	p.Arg78Leu	missense_variant	Exon 4 of 4	1		ENSP00000202834.7		Q96A57-1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152184

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251214

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135778

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000880

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461774

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727188

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000270

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152184

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74354

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000113

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Pathogenic:1Uncertain:1

Sep 04, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

For these reasons, this variant has been classified as Pathogenic. This sequence change replaces arginine, which is basic and polar, with leucine, which is neutral and non-polar, at codon 141 of the TMEM230 protein (p.Arg141Leu). This variant is present in population databases (no rsID available, gnomAD 0.0009%). This missense change has been observed in individual(s) with Parkinson disease (PMID: 27270108). It has also been observed to segregate with disease in related individuals. This variant is also known as R78L. ClinVar contains an entry for this variant (Variation ID: 243014). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant¬¨‚Ä†is likely to be tolerated. Experimental studies have shown that this missense change affects TMEM230 function (PMID: 27270108, 30460091). -

Apr 01, 2014

OMIM

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: literature only

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.89

BayesDel_addAF

Pathogenic

0.24

BayesDel_noAF

Uncertain

0.10

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.27

T;T;T;T;T;.;T

Eigen

Uncertain

0.58

Eigen_PC

Uncertain

0.51

FATHMM_MKL

Uncertain

0.85

LIST_S2

Uncertain

0.88

.;.;.;.;.;D;D

M_CAP

Benign

0.039

MetaRNN

Pathogenic

0.95

D;D;D;D;D;D;D

MetaSVM

Benign

-0.40

MutationAssessor

Pathogenic

3.0

M;M;M;M;M;.;M

PrimateAI

Uncertain

0.60

PROVEAN

Pathogenic

-5.6

D;D;D;D;D;D;D

REVEL

Uncertain

0.40

Sift

Uncertain

0.0050

D;D;D;D;D;D;D

Sift4G

Uncertain

0.019

D;D;D;D;D;D;D

Polyphen

0.89

P;P;P;P;P;D;P

Vest4

0.90

MutPred

0.88

Loss of sheet (P = 0.0457);Loss of sheet (P = 0.0457);Loss of sheet (P = 0.0457);Loss of sheet (P = 0.0457);Loss of sheet (P = 0.0457);.;Loss of sheet (P = 0.0457);

MVP

0.48

MPC

0.67

ClinPred

0.99

GERP RS

3.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.58

gMVP

0.96

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