chr16-7579799-C-G

Variant names:

• chr16-7579799-C-G
• rs373077021
• NM_018723.4:c.293C>G

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_018723.4(RBFOX1):​c.293C>G​(p.Thr98Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,792 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T98M) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: RBFOX1 NM_018723.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.54
• Publications: 0 publications found

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

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018723.4. 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
	RBFOX1	NM_018723.4	MANE Select	c.293C>G	p.Thr98Arg	missense	Exon 6 of 16	NP_061193.2
	RBFOX1	NM_145893.3	MANE Plus Clinical	c.353C>G	p.Thr118Arg	missense	Exon 3 of 14	NP_665900.1	Q9NWB1-5
	RBFOX1	NM_001415887.1		c.890C>G	p.Thr297Arg	missense	Exon 9 of 20	NP_001402816.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RBFOX1	ENST00000550418.6	TSL:1 MANE Select	c.293C>G	p.Thr98Arg	missense	Exon 6 of 16	ENSP00000450031.1	Q9NWB1-1
	RBFOX1	ENST00000355637.9	TSL:1 MANE Plus Clinical	c.353C>G	p.Thr118Arg	missense	Exon 3 of 14	ENSP00000347855.4	Q9NWB1-5
	RBFOX1	ENST00000311745.9	TSL:1	c.353C>G	p.Thr118Arg	missense	Exon 3 of 13	ENSP00000309117.5	Q9NWB1-2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461792 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 727196

African (AFR) AF: 0.00 AC: 0 AN: 33474

American (AMR) AF: 0.00 AC: 0 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39696

South Asian (SAS) AF: 0.00 AC: 0 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53410

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111942

Other (OTH) AF: 0.00 AC: 0 AN: 60394

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.38
BayesDel_addAF	Uncertain	0.10	D
BayesDel_noAF	Benign	-0.090
CADD	Pathogenic	30
DANN	Uncertain	1.0
DEOGEN2	Benign	0.22	T
Eigen	Pathogenic	0.75
Eigen_PC	Pathogenic	0.72
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Pathogenic	0.97	D
M_CAP	Benign	0.019	T
MetaRNN	Uncertain	0.55	D
MetaSVM	Benign	-0.76	T
MutationAssessor	Uncertain	2.4	M
PhyloP100		7.5
PrimateAI	Uncertain	0.68	T
PROVEAN	Uncertain	-3.9	D
REVEL	Benign	0.26
Sift	Uncertain	0.027	D
Sift4G	Uncertain	0.016	D
Polyphen		1.0	D
Vest4		0.58
MutPred		0.21		Loss of glycosylation at T141 (P = 0.0034)
MVP		0.22
MPC		0.013
ClinPred		0.98	D
GERP RS		5.4
Varity_R		0.62
gMVP		0.67
Mutation Taster		=36/64	disease causing

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

Other links and lift over

dbSNP: rs373077021; hg19: chr16-7629801;