passages.id: split_8_test_296_passage
passages.type: progene_text
passages.text: These results suggest that the Skp1 / Cullin / F-box protein FWD1 ( SCFFWD1 ) - ubiquitin ligase complex is involved in beta-catenin ubiquitination and that FWD1 serves as an intracellular receptor for phosphorylated beta-catenin .