rs150620449

Variant names:

• chr3-100720048-G-A
• rs150620449
• NM_006070.6:c.258G>A
• TFG p.Leu86Leu

Your query was ambiguous. Multiple possible variants found:

• chr3-100720048-G-A
• chr3-100720048-G-T

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_Moderate BP6_Moderate BP7

The NM_006070.6(TFG):​c.258G>A​(p.Leu86Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000005 in 1,401,180 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 Likely benign (★). Synonymous variant affecting the same amino acid position (i.e. L86L) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000050 (0 hom.)
• Consequence: TFG NM_006070.6 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 1.81
• Publications: 0 publications found

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: Labcorp Genetics (formerly Invitae), Orphanet, PanelApp Australia
• hereditary spastic paraplegia 57

  Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, PanelApp Australia
• autosomal dominant Charcot-Marie-Tooth disease type 2 due to TFG mutation

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -5 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.39).
• BP6: Variant 3-100720048-G-A is Benign according to our data. Variant chr3-100720048-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 1973601.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=1.81 with no splicing effect.

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TFG	NM_006070.6	MANE Select	c.258G>A	p.Leu86Leu	synonymous	Exon 3 of 8	NP_006061.2
	TFG	NM_001007565.2		c.258G>A	p.Leu86Leu	synonymous	Exon 3 of 8	NP_001007566.1	Q92734-1
	TFG	NM_001195478.2		c.258G>A	p.Leu86Leu	synonymous	Exon 3 of 8	NP_001182407.1	Q92734-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TFG	ENST00000240851.9	TSL:1 MANE Select	c.258G>A	p.Leu86Leu	synonymous	Exon 3 of 8	ENSP00000240851.4	Q92734-1
	TFG	ENST00000476228.5	TSL:1	c.258G>A	p.Leu86Leu	synonymous	Exon 3 of 8	ENSP00000417952.1	Q92734-2
	TFG	ENST00000615993.2	TSL:1	c.258G>A	p.Leu86Leu	synonymous	Exon 3 of 9	ENSP00000479269.2	Q92734-4

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000500 AC: 7 AN: 1401180 Hom.: 0 Cov.: 24 AF XY: 0.00000143 AC XY: 1 AN XY: 697574

African (AFR) AF: 0.00 AC: 0 AN: 30352

American (AMR) AF: 0.00 AC: 0 AN: 35522

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 24806

East Asian (EAS) AF: 0.00 AC: 0 AN: 37378

South Asian (SAS) AF: 0.00 AC: 0 AN: 76194

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52812

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5530

European-Non Finnish (NFE) AF: 0.00000648 AC: 7 AN: 1080682

Other (OTH) AF: 0.00 AC: 0 AN: 57904

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions

Significance: Likely benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	Hereditary motor and sensory neuropathy, Okinawa type;C3714897:Hereditary spastic paraplegia 57 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.39
CADD	Benign	8.4
DANN	Benign	0.77
PhyloP100		1.8

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

dbSNP: rs150620449; hg19: chr3-100438892;