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GeneBe

7-75987273-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_031925.3(TMEM120A):​c.931G>A​(p.Gly311Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000437 in 1,601,406 control chromosomes in the GnomAD database, including 1 homozygotes. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000042 ( 1 hom. )

Consequence

TMEM120A
NM_031925.3 missense

Scores

5
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.06
Variant links:
Genes affected
TMEM120A (HGNC:21697): (transmembrane protein 120A) Predicted to enable ion channel activity. Involved in fat cell differentiation; protein heterooligomerization; and protein homooligomerization. Predicted to be located in plasma membrane. Predicted to be active in membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TMEM120ANM_031925.3 linkuse as main transcriptc.931G>A p.Gly311Ser missense_variant 12/12 ENST00000493111.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TMEM120AENST00000493111.7 linkuse as main transcriptc.931G>A p.Gly311Ser missense_variant 12/121 NM_031925.3 P1Q9BXJ8-1

Frequencies

GnomAD3 genomes
AF:
0.0000591
AC:
9
AN:
152216
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.000118
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000396
AC:
9
AN:
227056
Hom.:
0
AF XY:
0.0000487
AC XY:
6
AN XY:
123308
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000312
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000121
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000491
Gnomad OTH exome
AF:
0.000176
GnomAD4 exome
AF:
0.0000421
AC:
61
AN:
1449190
Hom.:
1
Cov.:
33
AF XY:
0.0000472
AC XY:
34
AN XY:
719820
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000233
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000594
Gnomad4 FIN exome
AF:
0.0000195
Gnomad4 NFE exome
AF:
0.0000461
Gnomad4 OTH exome
AF:
0.0000500
GnomAD4 genome
AF:
0.0000591
AC:
9
AN:
152216
Hom.:
0
Cov.:
34
AF XY:
0.0000807
AC XY:
6
AN XY:
74360
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000118
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000912
Hom.:
0
Bravo
AF:
0.0000604
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000519
AC:
2
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000118
AC:
1
ExAC
AF:
0.0000333
AC:
4

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 submitterclinical testingAmbry GeneticsAug 01, 2022The c.931G>A (p.G311S) alteration is located in exon 12 (coding exon 12) of the TMEM120A gene. This alteration results from a G to A substitution at nucleotide position 931, causing the glycine (G) at amino acid position 311 to be replaced by a serine (S). 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
0.16
BayesDel_addAF
Benign
-0.028
T
BayesDel_noAF
Uncertain
-0.040
CADD
Uncertain
25
DANN
Benign
0.90
DEOGEN2
Benign
0.0066
T
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.91
D
MetaRNN
Uncertain
0.50
T
MutationAssessor
Benign
1.2
L
PrimateAI
Uncertain
0.53
T
Sift4G
Benign
0.89
T
Polyphen
0.99
D
Vest4
0.60
MVP
0.31
GERP RS
3.7
Varity_R
0.27

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.19
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.

Other links and lift over

dbSNP: rs377284594; hg19: chr7-75616591; COSMIC: COSV105912118; COSMIC: COSV105912118; API