Genetic Variant TMEM120B:p.Val108Gly (chr12-121750397-T-G) – 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_001080825.2(TMEM120B):c.323T>G(p.Val108Gly) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,460,714 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: not found (cov: 31)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

TMEM120B
NM_001080825.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.65

Publications

0 publications found

Variant links:

Genes affected

TMEM120B (HGNC:32008): (transmembrane protein 120B) Predicted to be involved in fat cell differentiation and protein heterooligomerization. Predicted to be integral component of membrane. Predicted to be active in nuclear inner membrane. [provided by Alliance of Genome Resources, Apr 2022]

TMEM120B 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, 0.788

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001080825.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TMEM120B	NM_001080825.2	MANE Select	c.323T>G	p.Val108Gly	missense	Exon 4 of 12	NP_001074294.2	A0PK00

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
TMEM120B	ENST00000449592.7	TSL:1 MANE Select	c.323T>G	p.Val108Gly	missense	Exon 4 of 12	ENSP00000404991.2	A0PK00
TMEM120B	ENST00000541467.1	TSL:5	c.260T>G	p.Val87Gly	missense	Exon 3 of 10	ENSP00000442105.1	H0YG77
TMEM120B	ENST00000342607.10	TSL:2	n.323T>G		non_coding_transcript_exon	Exon 4 of 13	ENSP00000345152.6	A0PK00

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000402

AC:

AN:

248480

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000291

Gnomad ASJ exome

AF:

0.00

Gnomad EAS 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:

0.00000137

AC:

AN:

1460714

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726630

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33468

American (AMR)

AF:

0.0000224

AC:

AN:

44644

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26048

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53206

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5760

European-Non Finnish (NFE)

AF:

9.00e-7

AC:

AN:

1111300

Other (OTH)

AF:

0.00

AC:

AN:

60330

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000826

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.94

BayesDel_addAF

Pathogenic

0.21

BayesDel_noAF

Pathogenic

0.15

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.17

Eigen

Uncertain

0.62

Eigen_PC

Uncertain

0.60

FATHMM_MKL

Uncertain

0.90

LIST_S2

Uncertain

0.92

M_CAP

Uncertain

0.24

MetaRNN

Pathogenic

0.79

MetaSVM

Benign

-0.63

MutationAssessor

Uncertain

2.9

PhyloP100

6.7

PrimateAI

Uncertain

0.70

PROVEAN

Pathogenic

-5.4

REVEL

Uncertain

0.48

Sift

Uncertain

0.029

Sift4G

Uncertain

0.026

Polyphen

0.77

Vest4

0.70

MutPred

0.63

Gain of catalytic residue at N106 (P = 0)

MVP

0.32

MPC

1.3

ClinPred

0.99

GERP RS

5.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.60

gMVP

0.78

Mutation Taster

=55/45

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over