Genetic Variant NM_001101312.2:c.593T>G (chr7-150793095-A-C) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_001101312.2(TMEM176B):c.593T>G(p.Met198Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,770 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M198T) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

TMEM176B
NM_001101312.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.35

Publications

0 publications found

Variant links:

Genes affected

TMEM176B (HGNC:29596): (transmembrane protein 176B) Predicted to be involved in negative regulation of dendritic cell differentiation. Predicted to be located in nuclear membrane. Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

TMEM176B links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.791

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TMEM176B	NM_001101312.2 link	c.593T>G	p.Met198Arg	missense_variant	Exon 5 of 7	ENST00000326442.10	NP_001094782.1	Q3YBM2-1A0A090N7V7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TMEM176B	ENST00000326442.10 link	c.593T>G	p.Met198Arg	missense_variant	Exon 5 of 7	1	NM_001101312.2	ENSP00000318409.5		Q3YBM2-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461770

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727182

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86238

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53380

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111954

Other (OTH)

AF:

0.00

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.625

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.15

BayesDel_addAF

Benign

-0.045

BayesDel_noAF

Benign

-0.30

CADD

Benign

(source)

DANN

Benign

0.96

DEOGEN2

Benign

0.21

T;T;T;T;T;.

Eigen

Benign

-0.21

Eigen_PC

Benign

-0.45

FATHMM_MKL

Benign

0.047

LIST_S2

Benign

0.64

.;.;.;T;.;T

M_CAP

Benign

0.0077

MetaRNN

Pathogenic

0.79

D;D;D;D;D;D

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.7

L;L;L;L;L;.

PhyloP100

1.3

PrimateAI

Benign

0.45

PROVEAN

Pathogenic

-5.3

D;D;D;D;D;D

REVEL

Benign

0.084

Sift

Uncertain

0.0010

D;D;D;D;D;D

Sift4G

Uncertain

0.0020

D;D;D;D;D;D

Polyphen

0.97

D;D;D;D;D;.

Vest4

0.48

MutPred

0.81

Gain of MoRF binding (P = 0.0513);Gain of MoRF binding (P = 0.0513);Gain of MoRF binding (P = 0.0513);Gain of MoRF binding (P = 0.0513);Gain of MoRF binding (P = 0.0513);.;

MVP

0.18

MPC

0.21

ClinPred

0.67

GERP RS

2.5

Varity_R

0.81

gMVP

0.61

Mutation Taster

=94/6

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over