FBXL3

protein-coding

F-box and leucine rich repeat protein 3, the group of F-box and leucine rich repeat proteins

Gene summary

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 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 Fbls class and, in addition to an F-box, contains several tandem leucine-rich repeats and is localized in the nucleus. [provided by RefSeq, Jul 2008]

Previous symbols:
  • FBXL3A

MANE transcript

NM_012158.4

Inheritance

AR

ClinVar variants

P:5U:31B:5

Top phenotype

Intellectual developmental disorder with short stature, facial anomalies, and speech defects

gnomAD constraint

pLI —, LoF o/e 0.06

Max pathogenic AF

—

Genomic locus

chr13:76,992,598-77,027,195

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~34.6 kb
Loading mutation effect viewer...

GenCC Phenotypes & Disease Associations

Curated gene-disease validity assertions and inheritance patterns

intellectual disability, short stature, facial anomalies, and joint dislocationsLIMITED

Inheritance Pattern: AR

Disease ID:MONDO:0011651

Submitter: Ambry Genetics

intellectual disability, short stature, facial anomalies, and joint dislocationsSTRONG

Inheritance Pattern: AR

Disease ID:MONDO:0011651

Submitter: PanelApp Australia

Clinical Genomic Database (CGD)

Intellectual developmental disorder with short stature, facial anomalies, and speech defectsAR

Manifestation: Craniofacial; Musculoskeletal; Neurologic

Intervention: General

Rationale: Genetic knowledge may be beneficial related to issues such as selection of optimal supportive care, informed medical decision-making, prognostic considerations, and avoidance of unnecessary testing

Refs: 11477608; 30481285Source: CGD (NHGRI)

ClinVar Associated Diseases & Phenotypes

Reported disease conditions connected to FBXL3 variants in ClinVar

4 Conditions Cataloged
not specifiedTotal: 31
Intellectual disability, short stature, facial anomalies, and joint dislocationsTotal: 5
not providedTotal: 3
FBXL3-related disorderTotal: 3

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_012158.4. Only rare variants are included.

We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.

Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.

EffectPLPVUSLBBSum
synonymous
4
clinvar
1
clinvar
5
missense
1
clinvar
30
clinvar
31
nonsense
2
clinvar
1
clinvar
3
start loss
0
frameshift
1
clinvar
1
splice donor/acceptor (+/-2bp)
1
clinvar
1
Total41314141

Highest pathogenic variant AF is 0.00003081571

Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 21 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_012158.4RefSeqNP_036290.14MANE Select
ENST00000355619.10EnsemblENSP00000347834.54MANE Select
ENST00000417323.1EnsemblENSP00000412183.14Standard
ENST00000885159.1EnsemblENSP00000555218.14Standard

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Pathways ConsensusPathDB

  • Circadian rhythm - Homo sapiens (human)
  • Circadian Clock
  • Post-translational protein modification
  • Metabolism of proteins
  • Chaperonin-mediated protein folding

Biological Process

  • protein polyubiquitination
  • protein ubiquitination
  • SCF-dependent proteasomal ubiquitin-dependent protein catabolic process
  • protein destabilization
  • regulation of circadian rhythm

Molecular Function

  • ubiquitin-protein transferase activity
  • protein binding
  • ubiquitin protein ligase activity

Cellular Component

  • ubiquitin ligase complex
  • nucleus
  • cytosol
  • nuclear body
  • SCF ubiquitin ligase complex

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000355619
Coding exons
4
Length
34591
Individuals with no LoFs
125578
Homozygous LoFs
0
Heterozygous LoFs
3
Defined
125581
p
0.0000119
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense2.831112330.4770.00001222808
Missense (PolyPhen)3598.4170.355631251
Synonymous-0.1808481.91.030.00000395820
Loss of Function3.53116.50.06079.19e-7215

Population LoF Frequency

PopulationCAFp-valueStatus
African00.0absent
Latino/Admixed American00.0absent
Ashkenazi Jewish00.0absent
East Asian0.0000540.000054rare
Finnish00.0absent
European (Non-Finnish)0.0000180.000018rare
South Asian00.0absent
Other00.0absent

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: Substrate-recognition component of the SCF(FBXL3) E3 ubiquitin ligase complex involved in circadian rhythm function. Plays a key role in the maintenance of both the speed and the robustness of the circadian clock oscillation (PubMed:17463251, PubMed:23452855, PubMed:27565346). The SCF(FBXL3) complex mainly acts in the nucleus and mediates ubiquitination and subsequent degradation of CRY1 and CRY2 (PubMed:17463251, PubMed:23452855, PubMed:27565346). Activity of the SCF(FBXL3) complex is counteracted by the SCF(FBXL21) complex (PubMed:23452855). {ECO:0000269|PubMed:17463251, ECO:0000269|PubMed:23452855, ECO:0000269|PubMed:27565346}.;

Recessive Scores

pRec
0.111

Intolerance Scores

RVIS EVS
-0.32
RVIS percentile EVS
31.46

Essentials

Essential (CRISPR)
N
Essential (CRISPR2)
N
Essential (gene trap)
N
Indispensability pred.
E
Indispensability score
0.871

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumLowLow
Primary ImmunodeficiencyMediumLowMedium
CancerMediumMediumMedium
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