chr20-5069330-C-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The ENST00000612323.4(TMEM230):​c.242G>A​(p.Arg81Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000321 in 1,534,844 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 6/7 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.0018 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00016 ( 1 hom. )

Consequence

TMEM230
ENST00000612323.4 missense

Scores

7

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: -0.507
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.00401181).
BP6
Variant 20-5069330-C-T is Benign according to our data. Variant chr20-5069330-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 3048152.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TMEM230NM_001330987.2 linkuse as main transcriptc.242G>A p.Arg81Gln missense_variant 4/4
TMEM230XR_002958476.2 linkuse as main transcriptn.479G>A non_coding_transcript_exon_variant 5/7
TMEM230XR_002958478.2 linkuse as main transcriptn.373G>A non_coding_transcript_exon_variant 4/5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TMEM230ENST00000612323.4 linkuse as main transcriptc.242G>A p.Arg81Gln missense_variant 4/41
TMEM230ENST00000615008.4 linkuse as main transcriptc.242G>A p.Arg81Gln missense_variant 5/64

Frequencies

GnomAD3 genomes
AF:
0.00178
AC:
271
AN:
152114
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00616
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000393
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:
0.000103
Gnomad OTH
AF:
0.00144
GnomAD3 exomes
AF:
0.000376
AC:
50
AN:
132892
Hom.:
0
AF XY:
0.000166
AC XY:
12
AN XY:
72362
show subpopulations
Gnomad AFR exome
AF:
0.00672
Gnomad AMR exome
AF:
0.000292
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000160
AC:
221
AN:
1382612
Hom.:
1
Cov.:
31
AF XY:
0.000116
AC XY:
79
AN XY:
682246
show subpopulations
Gnomad4 AFR exome
AF:
0.00574
Gnomad4 AMR exome
AF:
0.000311
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000280
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000111
Gnomad4 OTH exome
AF:
0.000277
GnomAD4 genome
AF:
0.00179
AC:
272
AN:
152232
Hom.:
0
Cov.:
32
AF XY:
0.00179
AC XY:
133
AN XY:
74434
show subpopulations
Gnomad4 AFR
AF:
0.00616
Gnomad4 AMR
AF:
0.000393
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000103
Gnomad4 OTH
AF:
0.00142
Alfa
AF:
0.000897
Hom.:
0
Bravo
AF:
0.00210
ExAC
AF:
0.000123
AC:
2
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

TMEM230-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesNov 03, 2020This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.82
T
BayesDel_noAF
Benign
-0.94
CADD
Benign
2.0
DANN
Benign
0.71
DEOGEN2
Benign
0.0072
T;T
FATHMM_MKL
Benign
0.00051
N
LIST_S2
Benign
0.36
.;T
MetaRNN
Benign
0.0040
T;T
Vest4
0.15
MVP
0.061
GERP RS
1.5

Splicing

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.

Other links and lift over

dbSNP: rs141618836; hg19: chr20-5049976; COSMIC: COSV69236084; COSMIC: COSV69236084; API