Variant 12-121743638-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001080825.2(TMEM120B):c.79A>G(p.Arg27Gly) variant causes a missense change. The variant allele was found at a frequency of 0.00000274 in 1,461,394 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 30)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

TMEM120B
NM_001080825.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.95

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 made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.422179).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TMEM120B	NM_001080825.2 link	c.79A>G	p.Arg27Gly	missense_variant	2/12	ENST00000449592.7	NP_001074294.2	A0PK00

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
TMEM120B	ENST00000449592.7 link	c.79A>G	p.Arg27Gly	missense_variant	2/12	1	NM_001080825.2	ENSP00000404991.2	A0PK00
TMEM120B	ENST00000541467.1 link	c.16A>G	p.Arg6Gly	missense_variant	1/10	5		ENSP00000442105.1	H0YG77
TMEM120B	ENST00000342607.10 link	n.79A>G		non_coding_transcript_exon_variant	2/13	2		ENSP00000345152.6	A0PK00

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000401

AC:

AN:

249126

Hom.:

AF XY:

0.00000740

AC XY:

AN XY:

135210

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461394

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

726960

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000464

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000828

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 01, 2023

The c.79A>G (p.R27G) alteration is located in exon 2 (coding exon 2) of the TMEM120B gene. This alteration results from a A to G substitution at nucleotide position 79, causing the arginine (R) at amino acid position 27 to be replaced by a glycine (G). 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

Benign

0.17

BayesDel_addAF

Benign

-0.072

BayesDel_noAF

Benign

-0.34

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.12

T;.

Eigen

Uncertain

0.36

Eigen_PC

Uncertain

0.33

FATHMM_MKL

Uncertain

0.90

LIST_S2

Uncertain

0.96

D;D

M_CAP

Benign

0.034

MetaRNN

Benign

0.42

T;T

MetaSVM

Benign

-0.82

MutationAssessor

Uncertain

2.6

M;.

PrimateAI

Benign

0.43

PROVEAN

Uncertain

-4.2

D;D

REVEL

Benign

0.19

Sift

Benign

0.039

D;D

Sift4G

Uncertain

0.034

D;D

Polyphen

0.60

P;.

Vest4

0.44

MutPred

0.55

Gain of catalytic residue at I28 (P = 0.0011);.;

MVP

0.31

MPC

0.63

ClinPred

0.95

GERP RS

4.0

Varity_R

0.37

gMVP

0.29

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