F-box/WD repeat-containing protein 7 - Q969H0 (FBXW7_HUMAN)


Protein Feature View of PDB entries mapped to a UniProtKB sequence  

  • Number of PDB entries for Q969H0: 5
Substrate recognition component of a SCF (SKP1-CUL1-F-box protein) E3 ubiquitin-protein ligase complex which mediates the ubiquitination and subsequent proteasomal degradation of target proteins. Recognizes and binds phosphorylated sites/phosphodegrons within target proteins and thereafter bring them to the SCF complex for ubiquitination (PubMed:17434132). Identified substrates include cyclin-E (CCNE1 or CCNE2), JUN, MYC, NOTCH1 released notch intracellular domain (NICD), NOTCH2, and probably PSEN1 (PubMed:11565034, PubMed:12354302, PubMed:11585921, PubMed:15103331, PubMed:14739463, PubMed:17558397, PubMed:17873522, PubMed:22608923, PubMed:29149593, PubMed:25775507). Acts as a negative regulator of JNK signaling by binding to phosphorylated JUN and promoting its ubiquitination and subsequent degradation (PubMed:14739463). SCF(FBXW7) complex mediates the ubiquitination and subsequent degradation of NFE2L1 (By similarity). Involved in bone homeostasis and negative regulation of osteoclast differentiation (PubMed:29149593). UniProt
Pathway Maps
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Subunit Structure
Homodimer; homodimerization plays a role in substrate binding and/or ubiquitination and degradation (PubMed:22608923, PubMed:17434132). Component of the SCF(FBXW7) complex consisting of CUL1, RBX1, SKP1 and FBXW7. Interacts with PSEN1, cyclin-E (CCNE1 or CCNE2), NOTCH1 intracellular domain/NICD, NOTCH4 intracellular domain/NICD and SKP1. Interacts with MYC (when phosphorylated) (PubMed:17873522, PubMed:25775507). Isoform 1 interacts with USP28, leading to counteract ubiquitination of MYC (PubMed:17873522). Isoform 3 interacts (via WD repeats) with SV40 large T antigen (via CPD region). Forms a trimeric complex with NOTCH1 and SGK1. Interacts with JUN (PubMed:14739463, PubMed:22608923). Found in a complex with JUN and PRR7 (PubMed:27458189). Interacts with JUN and PRR7; the interaction inhibits ubiquitination-mediated JUN degradation promoting its phosphorylation and transcriptional activity (PubMed:27458189). Interacts (when phosphorylated at Thr-205) with PIN1, leading to disrupt FBXW7 dimerization and promoting FBXW7 autoubiquitination and degradation (PubMed:22608923). Interacts with UBE2QL1 (PubMed:24000165). Interacts with FAM83D; promotes FBXW7 degradation (PubMed:24344117). Interacts with MYCN; FBXW7 competes with AURKA for binding to unphosphorylated MYCN but not for binding to phosphorylated MYCN (PubMed:27837025). Isoform 3 interacts with STOML1 (PubMed:23082202). Interacts with NFE2L1 (By similarity). Interacts with NOTCH2 intracellular domain (N2ICD) (PubMed:29149593). Isoform 3 interacts with USP36, leading to counteract ubiquitination of MYC (PubMed:25775507). UniProt
The F-box domain mediates interaction with SKP1. UniProt
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