X-120294048-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PP3_ModerateBS2

The NM_001104544.3(TMEM255A):​c.205G>A​(p.Gly69Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000103 in 1,068,823 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 2 hemizygotes in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 22)
Exomes 𝑓: 0.000010 ( 0 hom. 2 hem. )

Consequence

TMEM255A
NM_001104544.3 missense

Scores

6
6
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.04
Variant links:
Genes affected
TMEM255A (HGNC:26086): (transmembrane protein 255A) Predicted to act upstream of or within response to bacterium. 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.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.847
BS2
High Hemizygotes in GnomAdExome4 at 2 gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TMEM255ANM_001104544.3 linkuse as main transcriptc.205G>A p.Gly69Ser missense_variant 3/9 ENST00000371369.9 NP_001098014.1 Q5JRV8-3Q7Z4S8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TMEM255AENST00000371369.9 linkuse as main transcriptc.205G>A p.Gly69Ser missense_variant 3/92 NM_001104544.3 ENSP00000360420.4 Q5JRV8-3
TMEM255AENST00000309720.9 linkuse as main transcriptc.205G>A p.Gly69Ser missense_variant 3/101 ENSP00000310110.5 Q5JRV8-1
TMEM255AENST00000440464.5 linkuse as main transcriptc.205G>A p.Gly69Ser missense_variant 3/75 ENSP00000405781.1 Q5JRV8-4
TMEM255AENST00000519908.1 linkuse as main transcriptc.205G>A p.Gly69Ser missense_variant 3/65 ENSP00000428013.1 E5RFR0

Frequencies

GnomAD3 genomes
Cov.:
22
GnomAD3 exomes
AF:
0.00000545
AC:
1
AN:
183424
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
67860
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:
0.0000122
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000103
AC:
11
AN:
1068823
Hom.:
0
Cov.:
26
AF XY:
0.00000589
AC XY:
2
AN XY:
339293
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:
0.0000134
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
22
Bravo
AF:
0.0000113

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 GeneticsOct 07, 2022The c.205G>A (p.G69S) alteration is located in exon 3 (coding exon 3) of the TMEM255A gene. This alteration results from a G to A substitution at nucleotide position 205, causing the glycine (G) at amino acid position 69 to be replaced by a serine (S). 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
0.79
BayesDel_addAF
Pathogenic
0.35
D
BayesDel_noAF
Pathogenic
0.26
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Benign
0.16
T;.;.;.
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.94
D;D;D;D
M_CAP
Uncertain
0.17
D
MetaRNN
Pathogenic
0.85
D;D;D;D
MetaSVM
Uncertain
-0.25
T
MutationAssessor
Benign
1.5
L;L;L;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Pathogenic
0.88
D
PROVEAN
Uncertain
-3.5
D;D;D;D
REVEL
Uncertain
0.62
Sift
Benign
0.15
T;T;T;T
Sift4G
Benign
0.15
T;T;T;.
Polyphen
1.0
D;.;.;.
Vest4
0.76
MVP
0.73
MPC
0.49
ClinPred
0.91
D
GERP RS
5.1
Varity_R
0.75
gMVP
0.93

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.15
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: rs1192296015; hg19: chrX-119427903; API