22-32485115-C-T

Position:

• chr22-32485115-C-T

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6 BP7 BS1 BS2

The NM_012179.4(FBXO7):​c.693C>T​(p.Ser231=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00441 in 1,614,128 control chromosomes in the GnomAD database, including 13 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: 𝑓 0.0028 (1 hom., cov: 32)
  • Exomes 𝑓: 0.0046 (12 hom.)
• Consequence: FBXO7 NM_012179.4 synonymous
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:7
• Conservation: PhyloP100: -5.91

Genes affected

FBXO7 (HGNC:13586): (F-box protein 7) This gene encodes a member of the F-box protein family which is characterized by an approximately 40 amino acid motif, the F-box. The F-box proteins constitute one of the four subunits of the ubiquitin protein ligase complex called SCFs (SKP1-cullin-F-box), which function in phosphorylation-dependent ubiquitination. The F-box proteins are divided into 3 classes: Fbws containing WD-40 domains, Fbls containing leucine-rich repeats, and Fbxs containing either different protein-protein interaction modules or no recognizable motifs. The protein encoded by this gene belongs to the Fbxs class and it may play a role in regulation of hematopoiesis. Alternatively spliced transcript variants of this gene have been identified with the full-length natures of only some variants being determined. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.69).
• BP6: Variant 22-32485115-C-T is Benign according to our data. Variant chr22-32485115-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 341312.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Benign=1, Uncertain_significance=1}. Variant chr22-32485115-C-T is described in Lovd as [Likely_benign].
• BP7: Synonymous conserved (PhyloP=-5.91 with no splicing effect.
• BS1: Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.0028 (426/152260) while in subpopulation NFE AF= 0.00481 (327/68014). AF 95% confidence interval is 0.00438. There are 1 homozygotes in gnomad4. There are 187 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High Homozygotes in GnomAdExome4 at 12 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
FBXO7	NM_012179.4	c.693C>T	p.Ser231=	synonymous_variant	4/9	ENST00000266087.12	NP_036311.3
FBXO7	NM_001033024.2	c.456C>T	p.Ser152=	synonymous_variant	4/9		NP_001028196.1
FBXO7	NM_001257990.2	c.351C>T	p.Ser117=	synonymous_variant	4/9		NP_001244919.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
FBXO7	ENST00000266087.12	c.693C>T	p.Ser231=	synonymous_variant	4/9	1	NM_012179.4	ENSP00000266087	P2

Frequencies

GnomAD3 genomes AF: 0.00280 AC: 426 AN: 152142 Hom.: 1 Cov.: 32

Gnomad AFR AF: 0.00101

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000851

Gnomad ASJ AF: 0.000289

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00228

Gnomad FIN AF: 0.00255

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00481

Gnomad OTH AF: 0.00240

GnomAD3 exomes AF: 0.00285 AC: 716 AN: 251442 Hom.: 1 AF XY: 0.00280 AC XY: 381 AN XY: 135890

Gnomad AFR exome AF: 0.000738

Gnomad AMR exome AF: 0.000810

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000544

Gnomad SAS exome AF: 0.00134

Gnomad FIN exome AF: 0.00268

Gnomad NFE exome AF: 0.00492

Gnomad OTH exome AF: 0.00261

GnomAD4 exome AF: 0.00458 AC: 6695 AN: 1461868 Hom.: 12 Cov.: 31 AF XY: 0.00451 AC XY: 3281 AN XY: 727236

Gnomad4 AFR exome AF: 0.000687

Gnomad4 AMR exome AF: 0.000760

Gnomad4 ASJ exome AF: 0.0000383

Gnomad4 EAS exome AF: 0.0000252

Gnomad4 SAS exome AF: 0.00159

Gnomad4 FIN exome AF: 0.00234

Gnomad4 NFE exome AF: 0.00552

Gnomad4 OTH exome AF: 0.00374

GnomAD4 genome AF: 0.00280 AC: 426 AN: 152260 Hom.: 1 Cov.: 32 AF XY: 0.00251 AC XY: 187 AN XY: 74432

Gnomad4 AFR AF: 0.00101

Gnomad4 AMR AF: 0.000850

Gnomad4 ASJ AF: 0.000289

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00228

Gnomad4 FIN AF: 0.00255

Gnomad4 NFE AF: 0.00481

Gnomad4 OTH AF: 0.00238

Alfa AF: 0.00470 Hom.: 1

Bravo AF: 0.00281

Asia WGS AF: 0.00115 AC: 4 AN: 3478

EpiCase AF: 0.00507

EpiControl AF: 0.00415

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1 Benign:7

Revision: criteria provided, conflicting classifications

Submissions by phenotype

Parkinsonian-pyramidal syndrome Uncertain:1 Benign:3

Uncertain significance, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 12, 2018	This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -
Likely benign, criteria provided, single submitter	clinical testing	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center	Jun 28, 2017	- -
Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 31, 2024	- -
Likely benign, no assertion criteria provided	clinical testing	Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen	-	- -

not provided Benign:2

Likely benign, no assertion criteria provided	clinical testing	Genome Diagnostics Laboratory, Amsterdam University Medical Center	-	- -
Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Jul 01, 2024	FBXO7: BP4, BP7 -

not specified Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Eurofins Ntd Llc (ga)

Apr 18, 2017

- -

FBXO7-related disorder Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Feb 20, 2020

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.69
CADD	Benign	0.19
DANN	Benign	0.56
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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

Other links and lift over

dbSNP: rs61752254; hg19: chr22-32881102;