Genetic Variant TMEM147:p.Ala31Val (chr19-35545902-C-T) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1PM2PP3_Moderate

The NM_032635.4(TMEM147):c.92C>T(p.Ala31Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000558 in 1,613,898 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: 0.0000048 ( 0 hom. )

Consequence

TMEM147
NM_032635.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.89

Variant links:

Genes affected

TMEM147 (HGNC:30414): (transmembrane protein 147) Enables ribosome binding activity. Located in endoplasmic reticulum membrane. Part of protein-containing complex. [provided by Alliance of Genome Resources, Apr 2022]

TMEM147 links:

TMEM147-AS1 (HGNC:51273): (TMEM147 antisense RNA 1)

TMEM147-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM1

In a chain BOS complex subunit TMEM147 (size 223) in uniprot entity TM147_HUMAN there are 6 pathogenic changes around while only 1 benign (86%) in NM_032635.4

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.93

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TMEM147	NM_032635.4 link	c.92C>T	p.Ala31Val	missense_variant	Exon 2 of 7	ENST00000222284.10	NP_116024.1	Q9BVK8-1
TMEM147	NM_001242598.2 link	c.92C>T	p.Ala31Val	missense_variant	Exon 2 of 5		NP_001229527.1
TMEM147	NM_001242597.2 link	c.-56C>T		5_prime_UTR_variant	Exon 1 of 6		NP_001229526.1	Q9BVK8-2
TMEM147-AS1	NR_038396.1 link	n.93+35G>A		intron_variant	Intron 1 of 3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TMEM147	ENST00000222284.10 link	c.92C>T	p.Ala31Val	missense_variant	Exon 2 of 7	1	NM_032635.4	ENSP00000222284.4		Q9BVK8-1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152272

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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

GnomAD3 exomes

AF:

0.00000798

AC:

AN:

250716

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135740

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000579

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:

0.00000479

AC:

AN:

1461626

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727148

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

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:

0.00000540

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152272

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74390

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000131

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:

0.0000151

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Jan 04, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.92C>T (p.A31V) alteration is located in exon 2 (coding exon 2) of the TMEM147 gene. This alteration results from a C to T substitution at nucleotide position 92, causing the alanine (A) at amino acid position 31 to be replaced by a valine (V). 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

0.82

BayesDel_addAF

Uncertain

0.097

BayesDel_noAF

Uncertain

0.080

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.21

T;.

Eigen

Uncertain

0.39

Eigen_PC

Uncertain

0.28

FATHMM_MKL

Uncertain

0.92

LIST_S2

Pathogenic

0.97

D;D

M_CAP

Uncertain

0.088

MetaRNN

Pathogenic

0.93

D;D

MetaSVM

Benign

-0.54

MutationAssessor

Uncertain

2.1

M;.

PrimateAI

Pathogenic

0.80

PROVEAN

Uncertain

-2.7

D;D

REVEL

Uncertain

0.40

Sift

Uncertain

0.0040

D;D

Sift4G

Uncertain

0.013

D;D

Polyphen

0.99

D;.

Vest4

0.89

MutPred

0.85

Gain of relative solvent accessibility (P = 0.1259);Gain of relative solvent accessibility (P = 0.1259);

MVP

0.25

MPC

0.74

ClinPred

0.96

GERP RS

4.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.64

gMVP

0.85

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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