Genetic Variant TFG:p.Pro315Pro (chr3-100748273-G-A) – ACMG Classification: Benign (-19 pts)

Variant summary

Our verdict is Benign. The variant received -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_006070.6(TFG):c.945G>A(p.Pro315Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00252 in 1,613,988 control chromosomes in the GnomAD database, including 94 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.014 ( 39 hom., cov: 32)

Exomes 𝑓: 0.0014 ( 55 hom. )

Consequence

TFG
NM_006070.6 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -1.52

Publications

2 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

TFG links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -19 ACMG points.

BP4

Computational evidence support a benign effect (REVEL=0.023).

BP6

Variant 3-100748273-G-A is Benign according to our data. Variant chr3-100748273-G-A is described in ClinVar as Benign. ClinVar VariationId is 379906.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-1.52 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.0136 (2069/152154) while in subpopulation AFR AF = 0.0477 (1981/41488). AF 95% confidence interval is 0.046. There are 39 homozygotes in GnomAd4. There are 994 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 39 AR,AD gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006070.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
TFG	NM_006070.6	MANE Select	c.945G>A	p.Pro315Pro	synonymous	Exon 8 of 8	NP_006061.2
TFG	NM_001007565.2		c.945G>A	p.Pro315Pro	synonymous	Exon 8 of 8	NP_001007566.1
TFG	NM_001195478.2		c.945G>A	p.Pro315Pro	synonymous	Exon 8 of 8	NP_001182407.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
TFG	ENST00000240851.9	TSL:1 MANE Select	c.945G>A	p.Pro315Pro	synonymous	Exon 8 of 8	ENSP00000240851.4
TFG	ENST00000476228.5	TSL:1	c.933G>A	p.Pro311Pro	synonymous	Exon 8 of 8	ENSP00000417952.1
TFG	ENST00000615993.2	TSL:1	c.*131G>A		3_prime_UTR	Exon 9 of 9	ENSP00000479269.2

Frequencies

GnomAD3 genomes

AF:

0.0135

AC:

2058

AN:

152036

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0476

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00367

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:

0.0115

GnomAD2 exomes

AF:

0.00357

AC:

895

AN:

250870

AF XY:

0.00255

show subpopulations

Gnomad AFR exome

AF:

0.0514

Gnomad AMR exome

AF:

0.00124

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000882

Gnomad OTH exome

AF:

0.00131

GnomAD4 exome

AF:

0.00136

AC:

1992

AN:

1461834

Hom.:

Cov.:

AF XY:

0.00113

AC XY:

821

AN XY:

727212

show subpopulations

African (AFR)

AF:

0.0503

AC:

1685

AN:

33474

American (AMR)

AF:

0.00166

AC:

AN:

44712

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.000232

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00139

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000261

AC:

AN:

1111976

Other (OTH)

AF:

0.00291

AC:

176

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.479

Heterozygous variant carriers

121

242

362

483

604

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

108

162

216

270

<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

AF:

0.0136

AC:

2069

AN:

152154

Hom.:

Cov.:

AF XY:

0.0134

AC XY:

994

AN XY:

74378

show subpopulations

African (AFR)

AF:

0.0477

AC:

1981

AN:

41488

American (AMR)

AF:

0.00367

AC:

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.00

AC:

AN:

4808

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10602

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000118

AC:

AN:

68010

Other (OTH)

AF:

0.0114

AC:

AN:

2106

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

101

202

303

404

505

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00607

Hom.:

Bravo

AF:

0.0153

Asia WGS

AF:

0.00404

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Breakthrough Genomics, Breakthrough Genomics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:not provided

Oct 15, 2024

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

not specified

Benign:1

Apr 04, 2016

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease.

Hereditary motor and sensory neuropathy, Okinawa type;C3714897:Hereditary spastic paraplegia 57

Benign:1

Jan 30, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.78

CADD

Benign

1.5

(source)

DANN

Benign

0.76

PhyloP100

-1.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Mutation Taster

=100/0

polymorphism

(source)

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

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

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over