16-1542031-G-A

Variant summary

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

The NM_024600.6(TMEM204):​c.391G>A​(p.Ala131Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000931 in 1,610,906 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 34)
Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

TMEM204
NM_024600.6 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.46
Variant links:
Genes affected
TMEM204 (HGNC:14158): (transmembrane protein 204) C16ORF30 plays a role in cell adhesion and cellular permeability at adherens junctions (Kearsey et al., 2004 [PubMed 15206924]).[supplied by OMIM, Mar 2008]
IFT140 (HGNC:29077): (intraflagellar transport 140) This gene encodes one of the subunits of the intraflagellar transport (IFT) complex A. Intraflagellar transport is involved in the genesis, resorption and signaling of primary cilia. The primary cilium is a microtubule-based sensory organelle at the surface of most quiescent mammalian cells, that receives signals from its environment, such as the flow of fluid, light or odors, and transduces those signals to the nucleus. Loss of the corresponding protein in mouse results in renal cystic disease. [provided by RefSeq, Jun 2012]

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=0.057242274).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TMEM204NM_024600.6 linkuse as main transcriptc.391G>A p.Ala131Thr missense_variant 2/3 ENST00000566264.2 NP_078876.2
IFT140NM_014714.4 linkuse as main transcriptc.2400-15235C>T intron_variant ENST00000426508.7 NP_055529.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TMEM204ENST00000566264.2 linkuse as main transcriptc.391G>A p.Ala131Thr missense_variant 2/31 NM_024600.6 ENSP00000454945 P1
IFT140ENST00000426508.7 linkuse as main transcriptc.2400-15235C>T intron_variant 5 NM_014714.4 ENSP00000406012 P1Q96RY7-1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152202
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000417
AC:
1
AN:
239868
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
131614
show subpopulations
Gnomad AFR exome
AF:
0.0000678
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000891
AC:
13
AN:
1458704
Hom.:
0
Cov.:
33
AF XY:
0.0000110
AC XY:
8
AN XY:
725716
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:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000990
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152202
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
74350
show subpopulations
Gnomad4 AFR
AF:
0.0000241
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000113
ExAC
AF:
0.00000829
AC:
1

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 GeneticsJul 14, 2021The c.391G>A (p.A131T) alteration is located in exon 2 (coding exon 2) of the TMEM204 gene. This alteration results from a G to A substitution at nucleotide position 391, causing the alanine (A) at amino acid position 131 to be replaced by a threonine (T). 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
0.068
BayesDel_addAF
Benign
-0.34
T
BayesDel_noAF
Benign
-0.72
CADD
Benign
17
DANN
Benign
0.96
DEOGEN2
Benign
0.050
T;T
Eigen
Benign
-1.0
Eigen_PC
Benign
-0.87
FATHMM_MKL
Benign
0.58
D
LIST_S2
Benign
0.54
.;T
M_CAP
Benign
0.011
T
MetaRNN
Benign
0.057
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.14
N;N
MutationTaster
Benign
1.0
D;N;N
PrimateAI
Benign
0.34
T
PROVEAN
Benign
1.1
N;N
REVEL
Benign
0.030
Sift
Benign
0.44
T;T
Sift4G
Benign
0.44
T;T
Polyphen
0.0010
B;B
Vest4
0.12
MVP
0.043
MPC
0.35
ClinPred
0.071
T
GERP RS
0.34
Varity_R
0.020
gMVP
0.52

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: rs746733374; hg19: chr16-1592032; COSMIC: COSV54154649; API