Genetic Variant RBFOX1:c.270+20044C>T (chr16-7538433-C-T) – ACMG Classification: Benign (-12 pts)

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_StrongBA1

The NM_018723.4(RBFOX1):c.270+20044C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.767 in 151,984 control chromosomes in the GnomAD database, including 45,923 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.77 ( 45923 hom., cov: 31)

Consequence

RBFOX1
NM_018723.4 intron

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.673

Publications

8 publications found

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 Gene-Disease associations (from GenCC):

epilepsy
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
neurodevelopmental disorder
Inheritance: AD Classification: LIMITED Submitted by: G2P
autism susceptibility 1
Inheritance: Unknown Classification: LIMITED Submitted by: Laboratory for Molecular Medicine

RBFOX1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -12 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.88).

BA1

GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.863 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RBFOX1	NM_018723.4 link	c.270+20044C>T		intron_variant	Intron 5 of 15	ENST00000550418.6	NP_061193.2
RBFOX1	NM_145893.3 link	c.330+20044C>T		intron_variant	Intron 2 of 13	ENST00000355637.9	NP_665900.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RBFOX1	ENST00000550418.6 link	c.270+20044C>T		intron_variant	Intron 5 of 15	1	NM_018723.4	ENSP00000450031.1
RBFOX1	ENST00000355637.9 link	c.330+20044C>T		intron_variant	Intron 2 of 13	1	NM_145893.3	ENSP00000347855.4

Frequencies

GnomAD3 genomes

AF:

0.768

AC:

116573

AN:

151866

Hom.:

45912

Cov.:

show subpopulations

Gnomad AFR

AF:

0.659

Gnomad AMI

AF:

0.873

Gnomad AMR

AF:

0.656

Gnomad ASJ

AF:

0.875

Gnomad EAS

AF:

0.446

Gnomad SAS

AF:

0.827

Gnomad FIN

AF:

0.777

Gnomad MID

AF:

0.876

Gnomad NFE

AF:

0.869

Gnomad OTH

AF:

0.795

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome

AF:

0.767

AC:

116625

AN:

151984

Hom.:

45923

Cov.:

AF XY:

0.759

AC XY:

56382

AN XY:

74306

show subpopulations

African (AFR)

AF:

0.659

AC:

27278

AN:

41406

American (AMR)

AF:

0.655

AC:

10004

AN:

15262

Ashkenazi Jewish (ASJ)

AF:

0.875

AC:

3038

AN:

3472

East Asian (EAS)

AF:

0.446

AC:

2293

AN:

5144

South Asian (SAS)

AF:

0.826

AC:

3975

AN:

4812

European-Finnish (FIN)

AF:

0.777

AC:

8214

AN:

10574

Middle Eastern (MID)

AF:

0.870

AC:

254

AN:

292

European-Non Finnish (NFE)

AF:

0.869

AC:

59102

AN:

67998

Other (OTH)

AF:

0.791

AC:

1671

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.504

Heterozygous variant carriers

1266

2533

3799

5066

6332

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

858

1716

2574

3432

4290

<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:

0.842

Hom.:

30154

Bravo

AF:

0.748

Asia WGS

AF:

0.633

AC:

2204

AN:

3476

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.88

CADD

Benign

1.0

(source)

DANN

Benign

0.44

PhyloP100

-0.67

Mutation Taster

=100/0

polymorphism (auto)

(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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over