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Protein Name: F-box only protein 6

UniprotKB/SwissProt ID: FBX6_HUMAN (Q9NRD1)

Gene Name: FBXO6

Synonyms: FBG2, FBS2, FBX6

Organism: Homo sapiens (Human).

Function: Substrate-recognition component of some SCF (SKP1-CUL1- F-box protein)-type E3 ubiquitin ligase complexes. Involved in endoplasmic reticulum-associated degradation pathway (ERAD) for misfolded lumenal proteins by recognizing and binding sugar chains on unfolded glycoproteins that are retrotranlocated into the cytosol and promoting their ubiquitination and subsequent degradation. Able to recognize and bind denatured glycoproteins, which are modified with not only high-mannose but also complex- type oligosaccharides. Also recognizes sulfated glycans. Also involved in DNA damage response by specifically recognizing activated CHEK1 (phosphorylated on 'Ser-345'), promoting its ubiquitination and degradation. Ubiquitination of CHEK1 is required to insure that activated CHEK1 does not accumulate as cells progress through S phase, or when replication forks encounter transient impediments during normal DNA replication.

Other Modifications: View all modification sites in dbPTM

Protein Subcellular Localization: Cytoplasm.

Graphical Visualization of Ubiquitination Sites:
Overview of Protein Ubiquitination Sites with Functional and Structural Information
InterPro ID Domain
IPR001810
IPR007397
IPR008979


The ubiquitination sites of FBX6_HUMAN

No. Position Ubiquitinated Peptide Secondary Structure Solvent Accessibility Substrate Motifs PubMed ID
166REGFIT K DWDQPV HCCCCC C CCCCCH 52.59%21906983
2260SIVVSP K MTRNQA EEEEEE E ECCCCC 45.45%21906983
3275EAQPGQ K HGQEEA CCCCCH H CCHHHH 56.47%2190698

The interacting network mediated by proteins: FBX6_HUMAN

Metabolic pathway:
Kegg map ID Pathway
map03008Ribosome biogenesis in eukaryotes