Genetic Variant TMEM263:p.Thr73Lys (chr12-106971258-C-A) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_152261.4(TMEM263):c.218C>A(p.Thr73Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000142 in 1,614,054 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

TMEM263
NM_152261.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.95

Variant links:

Genes affected

TMEM263 (HGNC:28281): (transmembrane protein 263) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

TMEM263 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.758

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TMEM263	NM_152261.4 link	c.218C>A	p.Thr73Lys	missense_variant	Exon 4 of 4	ENST00000280756.9	NP_689474.1	Q8WUH6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TMEM263	ENST00000280756.9 link	c.218C>A	p.Thr73Lys	missense_variant	Exon 4 of 4	1	NM_152261.4	ENSP00000280756.4		Q8WUH6

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152164

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000524

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:

0.00

Gnomad OTH

AF:

0.000956

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251456

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135900

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

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:

0.00000821

AC:

AN:

1461890

Hom.:

Cov.:

AF XY:

0.00000825

AC XY:

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000157

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:

0.00

Gnomad4 OTH exome

AF:

0.0000662

GnomAD4 genome

AF:

0.0000723

AC:

AN:

152164

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74320

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.000524

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000956

Bravo

AF:

0.000234

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 27, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.218C>A (p.T73K) alteration is located in exon 4 (coding exon 2) of the TMEM263 gene. This alteration results from a C to A substitution at nucleotide position 218, causing the threonine (T) at amino acid position 73 to be replaced by a lysine (K). 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

0.78

BayesDel_addAF

Pathogenic

0.29

BayesDel_noAF

Pathogenic

0.27

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Benign

0.26

T;T;T;T;T;T

Eigen

Uncertain

0.51

Eigen_PC

Uncertain

0.60

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.94

.;.;.;.;.;D

M_CAP

Benign

0.016

MetaRNN

Pathogenic

0.76

D;D;D;D;D;D

MetaSVM

Benign

-0.65

MutationAssessor

Benign

1.9

L;L;L;L;L;L

PROVEAN

Pathogenic

-6.0

D;D;D;D;D;D

REVEL

Uncertain

0.56

Sift

Pathogenic

0.0

D;D;D;D;D;D

Sift4G

Pathogenic

0.0

D;D;D;D;D;D

Polyphen

0.82

P;P;P;P;P;P

Vest4

0.70

MutPred

0.66

Loss of glycosylation at T73 (P = 0.0147);Loss of glycosylation at T73 (P = 0.0147);Loss of glycosylation at T73 (P = 0.0147);Loss of glycosylation at T73 (P = 0.0147);Loss of glycosylation at T73 (P = 0.0147);Loss of glycosylation at T73 (P = 0.0147);

MVP

0.32

MPC

1.8

ClinPred

0.96

GERP RS

6.0

Varity_R

0.87

gMVP

0.79

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