rs770053266

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_006070.6(TFG):​c.391C>T​(p.Pro131Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000344 in 1,453,464 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

TFG
NM_006070.6 missense

Scores

2
1
16

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 3.44

Publications

0 publications found
Variant links:
Genes affected
TFG (HGNC:11758): (trafficking from ER to golgi regulator) There are several documented fusion oncoproteins encoded partially by this gene. This gene also participates in several oncogenic rearrangements resulting in anaplastic lymphoma and mixoid chondrosarcoma, and may play a role in the NF-kappaB pathway. Multiple transcript variants have been found for this gene. [provided by RefSeq, Sep 2010]
TFG Gene-Disease associations (from GenCC):
  • hereditary motor and sensory neuropathy, Okinawa type
    Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)
  • hereditary spastic paraplegia 57
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)
  • autosomal dominant Charcot-Marie-Tooth disease type 2 due to TFG mutation
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.10872474).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TFGNM_006070.6 linkc.391C>T p.Pro131Ser missense_variant Exon 4 of 8 ENST00000240851.9 NP_006061.2 Q92734-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TFGENST00000240851.9 linkc.391C>T p.Pro131Ser missense_variant Exon 4 of 8 1 NM_006070.6 ENSP00000240851.4 Q92734-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.0000165
AC:
4
AN:
242694
AF XY:
0.0000228
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000228
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000344
AC:
5
AN:
1453464
Hom.:
0
Cov.:
30
AF XY:
0.00000415
AC XY:
3
AN XY:
723176
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32846
American (AMR)
AF:
0.00
AC:
0
AN:
43138
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25892
East Asian (EAS)
AF:
0.0000767
AC:
3
AN:
39090
South Asian (SAS)
AF:
0.00
AC:
0
AN:
84972
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53266
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5740
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1108496
Other (OTH)
AF:
0.0000333
AC:
2
AN:
60024
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.405
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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.:
32
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Hereditary motor and sensory neuropathy, Okinawa type;C3714897:Hereditary spastic paraplegia 57 Uncertain:2
Sep 10, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces proline, which is neutral and non-polar, with serine, which is neutral and polar, at codon 131 of the TFG protein (p.Pro131Ser). This variant is present in population databases (rs770053266, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with TFG-related conditions. ClinVar contains an entry for this variant (Variation ID: 466408). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt TFG protein function with a negative predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Sep 22, 2021
Fulgent Genetics, Fulgent Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.081
BayesDel_addAF
Benign
-0.18
T
BayesDel_noAF
Benign
-0.50
CADD
Benign
20
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.21
.;.;T;T;.;T;T;.
Eigen
Benign
-0.086
Eigen_PC
Benign
0.087
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.94
.;.;.;D;D;D;D;D
M_CAP
Benign
0.010
T
MetaRNN
Benign
0.11
T;T;T;T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.4
L;L;L;L;L;.;.;L
PhyloP100
3.4
PrimateAI
Benign
0.43
T
PROVEAN
Benign
-1.2
.;N;N;N;N;N;N;.
REVEL
Benign
0.019
Sift
Benign
0.28
.;T;T;T;T;D;T;.
Sift4G
Benign
0.62
T;T;T;T;T;T;T;T
Polyphen
0.089
.;.;B;B;.;.;.;.
Vest4
0.23
MutPred
0.18
Loss of glycosylation at P126 (P = 0.0134);Loss of glycosylation at P126 (P = 0.0134);Loss of glycosylation at P126 (P = 0.0134);Loss of glycosylation at P126 (P = 0.0134);Loss of glycosylation at P126 (P = 0.0134);Loss of glycosylation at P126 (P = 0.0134);Loss of glycosylation at P126 (P = 0.0134);Loss of glycosylation at P126 (P = 0.0134);
MVP
0.35
MPC
0.39
ClinPred
0.16
T
GERP RS
5.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.065
gMVP
0.33
Mutation Taster
=88/12
polymorphism

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

Other links and lift over

dbSNP: rs770053266; hg19: chr3-100447678; API