Genetic Variant NM_145893.3:c.35A>T (chr16-7333036-A-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_145893.3(RBFOX1):c.35A>T(p.Tyr12Phe) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,630 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 10/17 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: 0.0000014 ( 0 hom. )

Consequence

RBFOX1
NM_145893.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.39

Variant links:

Genes affected

RBFOX1 (HGNC:18222): (RNA binding fox-1 homolog 1) The Fox-1 family of RNA-binding proteins is evolutionarily conserved, and regulates tissue-specific alternative splicing in metazoa. Fox-1 recognizes a (U)GCAUG stretch in regulated exons or in flanking introns. The protein binds to the C-terminus of ataxin-2 and may contribute to the restricted pathology of spinocerebellar ataxia type 2 (SCA2). Ataxin-2 is the product of the SCA2 gene which causes familial neurodegenerative diseases. Fox-1 and ataxin-2 are both localized in the trans-Golgi network. Several alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2011]

RBFOX1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.30766657).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RBFOX1	NM_145893.3 link	c.35A>T	p.Tyr12Phe	missense_variant	Exon 1 of 14	ENST00000355637.9	NP_665900.1	Q9NWB1-5
RBFOX1	NM_018723.4 link	c.28-185111A>T		intron_variant	Intron 4 of 15	ENST00000550418.6	NP_061193.2	Q9NWB1-1Q59HD3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RBFOX1	ENST00000355637.9 link	c.35A>T	p.Tyr12Phe	missense_variant	Exon 1 of 14	1	NM_145893.3	ENSP00000347855.4		Q9NWB1-5
RBFOX1	ENST00000550418.6 link	c.28-185111A>T		intron_variant	Intron 4 of 15	1	NM_018723.4	ENSP00000450031.1		Q9NWB1-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000797

AC:

AN:

250868

Hom.:

AF XY:

0.00000738

AC XY:

AN XY:

135566

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000177

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461630

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727116

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Idiopathic generalized epilepsy

Uncertain:1

Feb 15, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces tyrosine with phenylalanine at codon 12 of the RBFOX1 protein (p.Tyr12Phe). The tyrosine residue is weakly conserved and there is a small physicochemical difference between tyrosine and phenylalanine. This variant is present in population databases (rs759616730, ExAC 0.001%). This variant has not been reported in the literature in individuals with RBFOX1-related disease. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.43

CADD

Benign

DANN

Uncertain

0.98

Eigen

Benign

0.10

Eigen_PC

Uncertain

0.26

FATHMM_MKL

Uncertain

0.90

LIST_S2

Benign

0.82

T;T;T

M_CAP

Benign

0.0076

MetaRNN

Benign

0.31

T;T;T

MetaSVM

Benign

-1.1

PrimateAI

Uncertain

0.64

PROVEAN

Benign

-0.63

N;N;N

REVEL

Benign

0.048

Sift

Benign

0.078

T;T;D

Sift4G

Benign

0.11

T;T;T

Polyphen

0.72

P;P;P

Vest4

0.54

MutPred

0.30

Loss of phosphorylation at Y12 (P = 0.0379);Loss of phosphorylation at Y12 (P = 0.0379);Loss of phosphorylation at Y12 (P = 0.0379);

MVP

0.24

MPC

0.018

ClinPred

0.95

GERP RS

5.8

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