Variant 12-121750435-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001080825.2(TMEM120B):c.361G>A(p.Ala121Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000242 in 1,611,812 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: 𝑓 0.000059 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

TMEM120B
NM_001080825.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.29

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.08433244).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TMEM120B	NM_001080825.2 link	c.361G>A	p.Ala121Thr	missense_variant	4/12	ENST00000449592.7	NP_001074294.2	A0PK00

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
TMEM120B	ENST00000449592.7 link	c.361G>A	p.Ala121Thr	missense_variant	4/12	1	NM_001080825.2	ENSP00000404991.2	A0PK00
TMEM120B	ENST00000541467.1 link	c.298G>A	p.Ala100Thr	missense_variant	3/10	5		ENSP00000442105.1	H0YG77
TMEM120B	ENST00000342607.10 link	n.361G>A		non_coding_transcript_exon_variant	4/13	2		ENSP00000345152.6	A0PK00

Frequencies

GnomAD3 genomes

AF:

0.0000595

AC:

AN:

151198

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00174

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:

0.0000605

AC:

AN:

248064

Hom.:

AF XY:

0.0000668

AC XY:

AN XY:

134764

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000779

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000167

GnomAD4 exome

AF:

0.0000205

AC:

AN:

1460498

Hom.:

Cov.:

AF XY:

0.0000193

AC XY:

AN XY:

726486

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000328

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.00e-7

Gnomad4 OTH exome

AF:

0.000249

GnomAD4 genome

AF:

0.0000595

AC:

AN:

151314

Hom.:

Cov.:

AF XY:

0.0000812

AC XY:

AN XY:

73884

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00174

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000453

ExAC

AF:

0.0000413

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

Apr 01, 2024

The c.361G>A (p.A121T) alteration is located in exon 4 (coding exon 4) of the TMEM120B gene. This alteration results from a G to A substitution at nucleotide position 361, causing the alanine (A) at amino acid position 121 to be replaced by a threonine (T). 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

0.25

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.14

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Benign

0.075

T;.

Eigen

Uncertain

0.22

Eigen_PC

Uncertain

0.34

FATHMM_MKL

Uncertain

0.93

LIST_S2

Uncertain

0.89

D;D

M_CAP

Benign

0.012

MetaRNN

Benign

0.084

T;T

MetaSVM

Benign

-0.95

MutationAssessor

Uncertain

2.8

M;.

PrimateAI

Pathogenic

0.86

PROVEAN

Benign

-1.3

N;N

REVEL

Benign

0.15

Sift

Benign

0.50

T;T

Sift4G

Benign

0.29

T;T

Polyphen

0.030

B;.

Vest4

0.70

MutPred

0.49

Gain of catalytic residue at Q120 (P = 0.0182);.;

MVP

0.22

MPC

0.62

ClinPred

0.28

GERP RS

5.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.14

gMVP

0.49

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