6-130441443-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The ENST00000296978.4(TMEM200A):​c.1021G>A​(p.Val341Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000818 in 1,614,002 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000084 ( 0 hom. )

Consequence

TMEM200A
ENST00000296978.4 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.76
Variant links:
Genes affected
TMEM200A (HGNC:21075): (transmembrane protein 200A) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.011725396).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TMEM200ANM_001258277.2 linkuse as main transcriptc.1021G>A p.Val341Ile missense_variant 3/3 ENST00000296978.4 NP_001245206.1 Q86VY9A8K2A1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TMEM200AENST00000296978.4 linkuse as main transcriptc.1021G>A p.Val341Ile missense_variant 3/31 NM_001258277.2 ENSP00000296978.3 Q86VY9
TMEM200AENST00000392429.1 linkuse as main transcriptc.1021G>A p.Val341Ile missense_variant 2/21 ENSP00000376224.1 Q86VY9
TMEM200AENST00000545622.5 linkuse as main transcriptc.1021G>A p.Val341Ile missense_variant 2/22 ENSP00000438928.1 Q86VY9
TMEM200AENST00000617887.4 linkuse as main transcriptc.1021G>A p.Val341Ile missense_variant 2/22 ENSP00000480294.1 Q86VY9

Frequencies

GnomAD3 genomes
AF:
0.0000592
AC:
9
AN:
152100
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000191
AC:
48
AN:
250930
Hom.:
0
AF XY:
0.000147
AC XY:
20
AN XY:
135624
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.000463
Gnomad ASJ exome
AF:
0.00109
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000159
Gnomad OTH exome
AF:
0.000327
GnomAD4 exome
AF:
0.0000841
AC:
123
AN:
1461784
Hom.:
0
Cov.:
32
AF XY:
0.0000853
AC XY:
62
AN XY:
727190
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.000514
Gnomad4 ASJ exome
AF:
0.000842
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.0000696
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.0000558
Gnomad4 OTH exome
AF:
0.0000828
GnomAD4 genome
AF:
0.0000591
AC:
9
AN:
152218
Hom.:
0
Cov.:
32
AF XY:
0.0000538
AC XY:
4
AN XY:
74410
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000327
Gnomad4 ASJ
AF:
0.000288
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000385
Hom.:
0
Bravo
AF:
0.000106
ExAC
AF:
0.000115
AC:
14
EpiCase
AF:
0.000164
EpiControl
AF:
0.0000593

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 submitterclinical testingAmbry GeneticsDec 06, 2021The c.1021G>A (p.V341I) alteration is located in exon 2 (coding exon 1) of the TMEM200A gene. This alteration results from a G to A substitution at nucleotide position 1021, causing the valine (V) at amino acid position 341 to be replaced by an isoleucine (I). 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
0.070
BayesDel_addAF
Benign
-0.57
T
BayesDel_noAF
Benign
-0.72
CADD
Benign
6.7
DANN
Benign
0.75
DEOGEN2
Benign
0.023
T;T;T;T
Eigen
Benign
-0.97
Eigen_PC
Benign
-0.92
FATHMM_MKL
Benign
0.45
N
LIST_S2
Benign
0.32
.;.;T;.
M_CAP
Benign
0.0028
T
MetaRNN
Benign
0.012
T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.0
N;N;N;N
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.24
T
PROVEAN
Benign
-0.36
N;.;N;N
REVEL
Benign
0.030
Sift
Benign
0.050
D;.;D;D
Sift4G
Benign
0.20
T;T;T;T
Polyphen
0.0020
B;B;B;B
Vest4
0.034
MutPred
0.24
Loss of sheet (P = 0.0817);Loss of sheet (P = 0.0817);Loss of sheet (P = 0.0817);Loss of sheet (P = 0.0817);
MVP
0.043
MPC
0.11
ClinPred
0.014
T
GERP RS
2.1
Varity_R
0.023
gMVP
0.16

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.

Other links and lift over

dbSNP: rs148773951; hg19: chr6-130762588; COSMIC: COSV51658061; API