chr22-32475004-T-A

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate

The NM_012179.4(FBXO7):​c.2T>A​(p.Met1?) variant causes a start lost change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000723 in 1,383,932 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 7.2e-7 ( 0 hom. )

Consequence

FBXO7
NM_012179.4 start_lost

Scores

6
7
3

Clinical Significance

Pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 1.40
Variant links:
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]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 12 ACMG points.

PVS1
Start lost variant, no new inframe start found.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 22-32475004-T-A is Pathogenic according to our data. Variant chr22-32475004-T-A is described in ClinVar as [Pathogenic]. Clinvar id is 2960687.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
FBXO7NM_012179.4 linkuse as main transcriptc.2T>A p.Met1? start_lost 1/9 ENST00000266087.12 NP_036311.3 Q9Y3I1-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
FBXO7ENST00000266087.12 linkuse as main transcriptc.2T>A p.Met1? start_lost 1/91 NM_012179.4 ENSP00000266087.7 Q9Y3I1-1
FBXO7ENST00000420700.5 linkuse as main transcriptn.2T>A non_coding_transcript_exon_variant 1/85 ENSP00000406155.1 F8WBR0
FBXO7ENST00000425028.5 linkuse as main transcriptn.2T>A non_coding_transcript_exon_variant 1/95 ENSP00000395823.1 F8WDR9
FBXO7ENST00000492535.1 linkuse as main transcriptn.-11T>A upstream_gene_variant 5

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
7.23e-7
AC:
1
AN:
1383932
Hom.:
0
Cov.:
31
AF XY:
0.00000146
AC XY:
1
AN XY:
682828
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.29e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Parkinsonian-pyramidal syndrome Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpSep 19, 2023For these reasons, this variant has been classified as Pathogenic. This variant disrupts a region of the FBXO7 protein in which other variant(s) (p.Thr22Met) have been determined to be pathogenic (PMID: 19038853, 21347293, 23933751, 26310625). This suggests that this is a clinically significant region of the protein, and that variants that disrupt it are likely to be disease-causing. This variant has not been reported in the literature in individuals affected with FBXO7-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change affects the initiator methionine of the FBXO7 mRNA. The next in-frame methionine is located at codon 115. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.62
D
BayesDel_noAF
Pathogenic
0.15
CADD
Uncertain
25
DANN
Uncertain
0.98
DEOGEN2
Uncertain
0.50
D
Eigen
Uncertain
0.42
Eigen_PC
Uncertain
0.35
FATHMM_MKL
Benign
0.72
D
LIST_S2
Uncertain
0.90
D
M_CAP
Pathogenic
0.96
D
MetaRNN
Pathogenic
0.98
D
MetaSVM
Benign
-0.44
T
PROVEAN
Uncertain
-4.0
D
REVEL
Uncertain
0.59
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.74
MutPred
0.77
Loss of stability (P = 0.0351);
MVP
0.65
ClinPred
1.0
D
GERP RS
4.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.6
Varity_R
0.95
gMVP
0.88

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr22-32870991; API