Genetic Variant TMEM151B:p.Arg155Cys (chr6-44273393-C-T) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

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

The NM_001137560.2(TMEM151B):c.463C>T(p.Arg155Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000058 in 1,551,174 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 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000050 ( 0 hom. )

Consequence

TMEM151B
NM_001137560.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.38

Variant links:

Genes affected

TMEM151B (HGNC:21315): (transmembrane protein 151B) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

TMEM151B links:

ENSG00000272442 (HGNC:):

ENSG00000272442 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
TMEM151B	NM_001137560.2 link	c.463C>T	p.Arg155Cys	missense_variant	Exon 2 of 3	ENST00000451188.7	NP_001131032.1	Q8IW70-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
TMEM151B	ENST00000451188.7 link	c.463C>T	p.Arg155Cys	missense_variant	Exon 2 of 3	5	NM_001137560.2	ENSP00000393161.2	Q8IW70-1
ENSG00000272442	ENST00000505802.1 link	n.199C>T		non_coding_transcript_exon_variant	Exon 1 of 10	2		ENSP00000424257.1	H0Y9J4
TMEM151B	ENST00000438774.2 link	c.463C>T	p.Arg155Cys	missense_variant	Exon 2 of 3	3		ENSP00000409337.2	Q8IW70-2

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152244

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000500

AC:

AN:

1398930

Hom.:

Cov.:

AF XY:

0.00000725

AC XY:

AN XY:

689960

show subpopulations

Gnomad4 AFR exome

AF:

0.0000633

Gnomad4 AMR exome

AF:

0.00

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:

0.00000371

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152244

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74386

show subpopulations

Gnomad4 AFR

AF:

0.0000482

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:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000227

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 09, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.463C>T (p.R155C) alteration is located in exon 2 (coding exon 2) of the TMEM151B gene. This alteration results from a C to T substitution at nucleotide position 463, causing the arginine (R) at amino acid position 155 to be replaced by a cysteine (C). 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

Uncertain

0.41

BayesDel_addAF

Pathogenic

0.44

BayesDel_noAF

Pathogenic

0.39

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.16

T;.

Eigen

Uncertain

0.67

Eigen_PC

Uncertain

0.62

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.97

D;D

M_CAP

Benign

0.032

MetaRNN

Pathogenic

0.76

D;D

MetaSVM

Uncertain

-0.25

MutationAssessor

Uncertain

2.7

M;M

PrimateAI

Uncertain

0.76

PROVEAN

Pathogenic

-5.7

D;D

REVEL

Uncertain

0.59

Sift

Pathogenic

0.0

D;D

Sift4G

Pathogenic

0.0010

D;D

Polyphen

1.0

D;D

Vest4

0.70

MutPred

0.56

Loss of MoRF binding (P = 0.0011);Loss of MoRF binding (P = 0.0011);

MVP

0.38

ClinPred

1.0

GERP RS

4.7

Varity_R

0.78

gMVP

0.84

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