22-32493290-C-T

Position:

• chr22-32493290-C-T

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_Strong BP6 BS1 BS2

The NM_012179.4(FBXO7):​c.1144+9C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00154 in 1,611,864 control chromosomes in the GnomAD database, including 4 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 0.00099 (0 hom., cov: 33)
  • Exomes 𝑓: 0.0016 (4 hom.)
• Consequence: FBXO7 NM_012179.4 intron
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:3
• Conservation: PhyloP100: 0.291

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]

FBXO7 (HGNC:):

ACMG classification

Verdict is Benign. Variant got -13 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.61).
• BP6: Variant 22-32493290-C-T is Benign according to our data. Variant chr22-32493290-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 341317.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Benign=1}. Variant chr22-32493290-C-T is described in Lovd as [Likely_benign].
• BS1: Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000986 (150/152206) while in subpopulation NFE AF= 0.00171 (116/68026). AF 95% confidence interval is 0.00145. There are 0 homozygotes in gnomad4. There are 68 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
• BS2: High Homozygotes in GnomAdExome4 at 4 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
FBXO7	NM_012179.4	c.1144+9C>T		intron_variant		ENST00000266087.12	NP_036311.3
FBXO7	NM_001033024.2	c.907+9C>T		intron_variant			NP_001028196.1
FBXO7	NM_001257990.2	c.802+9C>T		intron_variant			NP_001244919.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
FBXO7	ENST00000266087.12	c.1144+9C>T		intron_variant		1	NM_012179.4	ENSP00000266087.7

Frequencies

GnomAD3 genomes AF: 0.000986 AC: 150 AN: 152088 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.000338

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000197

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00151

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00171

Gnomad OTH AF: 0.000479

GnomAD3 exomes AF: 0.00141 AC: 355 AN: 251350 Hom.: 0 AF XY: 0.00132 AC XY: 180 AN XY: 135854

Gnomad AFR exome AF: 0.000369

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000980

Gnomad FIN exome AF: 0.00347

Gnomad NFE exome AF: 0.00231

Gnomad OTH exome AF: 0.00147

GnomAD4 exome AF: 0.00159 AC: 2328 AN: 1459658 Hom.: 4 Cov.: 29 AF XY: 0.00154 AC XY: 1116 AN XY: 726310

Gnomad4 AFR exome AF: 0.000180

Gnomad4 AMR exome AF: 0.0000224

Gnomad4 ASJ exome AF: 0.0000383

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000580

Gnomad4 FIN exome AF: 0.00348

Gnomad4 NFE exome AF: 0.00185

Gnomad4 OTH exome AF: 0.00131

GnomAD4 genome AF: 0.000986 AC: 150 AN: 152206 Hom.: 0 Cov.: 33 AF XY: 0.000914 AC XY: 68 AN XY: 74420

Gnomad4 AFR AF: 0.000337

Gnomad4 AMR AF: 0.000196

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00151

Gnomad4 NFE AF: 0.00171

Gnomad4 OTH AF: 0.000474

Alfa AF: 0.00154 Hom.: 0

Bravo AF: 0.000774

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1 Benign:3

Revision: criteria provided, conflicting classifications

Submissions by phenotype

Parkinsonian-pyramidal syndrome Uncertain:1 Benign:1

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. -
Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 31, 2024	- -

not provided Benign:2

Likely benign, no assertion criteria provided	clinical testing	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center	-	- -
Likely benign, no assertion criteria provided	clinical testing	Genome Diagnostics Laboratory, Amsterdam University Medical Center	-	- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.61
CADD	Benign	12
DANN	Benign	0.81
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.040		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: rs199954341; hg19: chr22-32889277;