NM_018723.4:c.27+99323A>C

Variant names:

• chr16-7151421-A-C
• rs2127065
• NM_018723.4:c.27+99323A>C

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_018723.4(RBFOX1):​c.27+99323A>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.479 in 151,932 control chromosomes in the GnomAD database, including 19,275 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 0.48 (19275 hom., cov: 32)
• Consequence: RBFOX1 NM_018723.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.196
• Publications: 4 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: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.91).
• BA1: GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.65 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RBFOX1	NM_018723.4	c.27+99323A>C		intron_variant	Intron 4 of 15	ENST00000550418.6	NP_061193.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RBFOX1	ENST00000550418.6	c.27+99323A>C		intron_variant	Intron 4 of 15	1	NM_018723.4	ENSP00000450031.1

Frequencies

GnomAD3 genomes AF: 0.479 AC: 72703 AN: 151814 Hom.: 19275 Cov.: 32

Gnomad AFR AF: 0.236

Gnomad AMI AF: 0.522

Gnomad AMR AF: 0.617

Gnomad ASJ AF: 0.619

Gnomad EAS AF: 0.654

Gnomad SAS AF: 0.669

Gnomad FIN AF: 0.550

Gnomad MID AF: 0.602

Gnomad NFE AF: 0.549

Gnomad OTH AF: 0.500

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

GnomAD4 genome AF: 0.479 AC: 72728 AN: 151932 Hom.: 19275 Cov.: 32 AF XY: 0.488 AC XY: 36199 AN XY: 74244

African (AFR) AF: 0.235 AC: 9753 AN: 41426

American (AMR) AF: 0.617 AC: 9421 AN: 15264

Ashkenazi Jewish (ASJ) AF: 0.619 AC: 2146 AN: 3466

East Asian (EAS) AF: 0.655 AC: 3361 AN: 5128

South Asian (SAS) AF: 0.669 AC: 3219 AN: 4810

European-Finnish (FIN) AF: 0.550 AC: 5804 AN: 10552

Middle Eastern (MID) AF: 0.606 AC: 177 AN: 292

European-Non Finnish (NFE) AF: 0.549 AC: 37318 AN: 67974

Other (OTH) AF: 0.500 AC: 1055 AN: 2112

Alfa AF: 0.540 Hom.: 65139

Bravo AF: 0.473

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	0.40
DANN	Benign	0.44
PhyloP100		-0.20
Mutation Taster		=100/0	polymorphism (auto)

Splicing

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

Other links and lift over

dbSNP: rs2127065; hg19: chr16-7201422;