16-7710640-G-C

Variant summary

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

The NM_018723.4(RBFOX1):​c.1089G>C​(p.Leu363Phe) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,082 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. L363L) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

RBFOX1
NM_018723.4 missense

Scores

1
4
14

Clinical Significance

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

Conservation

PhyloP100: 6.66

Publications

0 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

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=0.1999304).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RBFOX1NM_018723.4 linkc.1089G>C p.Leu363Phe missense_variant Exon 16 of 16 ENST00000550418.6 NP_061193.2 Q9NWB1-1Q59HD3
RBFOX1NM_145893.3 linkc.*17G>C 3_prime_UTR_variant Exon 14 of 14 ENST00000355637.9 NP_665900.1 Q9NWB1-5

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RBFOX1ENST00000550418.6 linkc.1089G>C p.Leu363Phe missense_variant Exon 16 of 16 1 NM_018723.4 ENSP00000450031.1 Q9NWB1-1
RBFOX1ENST00000355637.9 linkc.*17G>C 3_prime_UTR_variant Exon 14 of 14 1 NM_145893.3 ENSP00000347855.4 Q9NWB1-5

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.00000399
AC:
1
AN:
250478
AF XY:
0.00000739
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000881
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461082
Hom.:
0
Cov.:
34
AF XY:
0.00000138
AC XY:
1
AN XY:
726860
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33432
American (AMR)
AF:
0.00
AC:
0
AN:
44520
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26122
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39664
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86058
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53410
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1111750
Other (OTH)
AF:
0.00
AC:
0
AN:
60362
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000594

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Sep 10, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.1152G>C (p.L384F) alteration is located in exon 13 (coding exon 13) of the RBFOX1 gene. This alteration results from a G to C substitution at nucleotide position 1152, causing the leucine (L) at amino acid position 384 to be replaced by a phenylalanine (F). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Idiopathic generalized epilepsy Uncertain:1
Jun 07, 2020
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. This variant has not been reported in the literature in individuals with RBFOX1-related disease. This variant is present in population databases (rs776822373, ExAC 0.001%). This sequence change replaces leucine with phenylalanine at codon 384 of the RBFOX1 protein (p.Leu384Phe). The leucine residue is weakly conserved and there is a small physicochemical difference between leucine and phenylalanine. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.24
BayesDel_addAF
Benign
-0.059
T
BayesDel_noAF
Benign
-0.32
CADD
Pathogenic
26
DANN
Uncertain
0.99
DEOGEN2
Benign
0.024
.;T;T;.;.;.
Eigen
Benign
0.061
Eigen_PC
Uncertain
0.28
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.83
T;.;T;T;T;T
M_CAP
Benign
0.0087
T
MetaRNN
Benign
0.20
T;T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.4
.;L;L;.;.;.
PhyloP100
6.7
PrimateAI
Uncertain
0.75
T
PROVEAN
Benign
-0.59
N;N;N;N;N;.
REVEL
Benign
0.14
Sift
Uncertain
0.019
D;D;D;D;D;.
Sift4G
Benign
0.063
T;T;T;T;T;T
Polyphen
0.66
P;P;P;B;.;.
Vest4
0.57
MutPred
0.35
.;Loss of helix (P = 0.1706);Loss of helix (P = 0.1706);.;.;.;
MVP
0.18
MPC
0.75
ClinPred
0.46
T
GERP RS
6.0
Varity_R
0.12

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.070
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: rs776822373; hg19: chr16-7760642; API