Gene Symbol: Skp1
Description: S-phase kinase associated protein 1
Alias: EMC19, OCP-II, OCP2, SKP1A, TCEB1L, p19A, S-phase kinase-associated protein 1, OCP-2, RNA polymerase II elongation factor-like protein OCP2, SIII, cyclin A/CDK2-associated p19, cyclin-A/CDK2-associated protein p19, organ of Corti protein 2, organ of Corti protein II, p19skp1, transcription elongation factor B polypeptide 1-like
Species: human
Products:     Skp1

Top Publications

  1. Winston J, Strack P, Beer Romero P, Chu C, Elledge S, Harper J. The SCFbeta-TRCP-ubiquitin ligase complex associates specifically with phosphorylated destruction motifs in IkappaBalpha and beta-catenin and stimulates IkappaBalpha ubiquitination in vitro. Genes Dev. 1999;13:270-83 pubmed the recently described SCF complexes, the archetype of which was first described in budding yeast and contains Skp1, Cdc53, and the F-box protein Cdc4...
  2. Fernández Sáiz V, Targosz B, Lemeer S, Eichner R, Langer C, Bullinger L, et al. SCFFbxo9 and CK2 direct the cellular response to growth factor withdrawal via Tel2/Tti1 degradation and promote survival in multiple myeloma. Nat Cell Biol. 2013;15:72-81 pubmed
  3. Van Rechem C, Black J, Abbas T, Allen A, Rinehart C, Yuan G, et al. The SKP1-Cul1-F-box and leucine-rich repeat protein 4 (SCF-FbxL4) ubiquitin ligase regulates lysine demethylase 4A (KDM4A)/Jumonji domain-containing 2A (JMJD2A) protein. J Biol Chem. 2011;286:30462-70 pubmed publisher
    ..JMJD2A turnover is coordinated through the SKP1-Cul1-F-box ubiquitin ligase complex that contains cullin 1 and the F-box and leucine-rich repeat protein 4 (FbxL4)...
  4. Rodier G, Coulombe P, Tanguay P, Boutonnet C, Meloche S. Phosphorylation of Skp2 regulated by CDK2 and Cdc14B protects it from degradation by APC(Cdh1) in G1 phase. EMBO J. 2008;27:679-91 pubmed publisher
    ..Thus, our results reveal that reversible phosphorylation plays a key role in the timing of Skp2 expression in the cell cycle. ..
  5. Busino L, Millman S, Scotto L, Kyratsous C, Basrur V, O CONNOR O, et al. Fbxw7?- and GSK3-mediated degradation of p100 is a pro-survival mechanism in multiple myeloma. Nat Cell Biol. 2012;14:375-85 pubmed publisher
    Fbxw7? is a member of the F-box family of proteins, which function as the substrate-targeting subunits of SCF (Skp1/Cul1/F-box protein) ubiquitin ligase complexes...
  6. Ayad N, Rankin S, Murakami M, Jebanathirajah J, Gygi S, Kirschner M. Tome-1, a trigger of mitotic entry, is degraded during G1 via the APC. Cell. 2003;113:101-13 pubmed
    ..Degradation of Tome-1 during G1 allows for wee 1 accumulation during interphase, thereby providing a critical link between the APC and SCF pathways in regulation of cdk1/cyclin B activity and thus mitotic entry and exit. ..
  7. Zheng N, Schulman B, Song L, Miller J, Jeffrey P, Wang P, et al. Structure of the Cul1-Rbx1-Skp1-F boxSkp2 SCF ubiquitin ligase complex. Nature. 2002;416:703-9 pubmed
    ..Here we present the crystal structure of the Cul1-Rbx1-Skp1-F boxSkp2 SCF complex, which shows that Cul1 is an elongated protein that consists of a long stalk and a globular ..
  8. Kim J, Kim J, Lee S, Kim D, Kang H, Bae S, et al. The novel human DNA helicase hFBH1 is an F-box protein. J Biol Chem. 2002;277:24530-7 pubmed
    ..The hFBH1 enzyme interacted with human SKP1 and formed an SCF (SKP1/Cullin/F-box) complex together with human Cullin and ROC1...
  9. D Angiolella V, Donato V, Vijayakumar S, Saraf A, Florens L, Washburn M, et al. SCF(Cyclin F) controls centrosome homeostasis and mitotic fidelity through CP110 degradation. Nature. 2010;466:138-42 pubmed publisher
    Generally, F-box proteins are the substrate recognition subunits of SCF (Skp1-Cul1-F-box protein) ubiquitin ligase complexes, which mediate the timely proteolysis of important eukaryotic regulatory proteins...

More Information


  1. Kleiger G, Saha A, Lewis S, Kuhlman B, Deshaies R. Rapid E2-E3 assembly and disassembly enable processive ubiquitylation of cullin-RING ubiquitin ligase substrates. Cell. 2009;139:957-68 pubmed publisher
    ..We discuss different strategies by which processive ubiquitin chain synthesis may be achieved. ..
  2. Vashisht A, Zumbrennen K, Huang X, Powers D, Durazo A, Sun D, et al. Control of iron homeostasis by an iron-regulated ubiquitin ligase. Science. 2009;326:718-21 pubmed publisher
    ..We found that a SKP1-CUL1-FBXL5 ubiquitin ligase protein complex associates with and promotes the iron-dependent ubiquitination and ..
  3. Arai T, Kasper J, Skaar J, Ali S, Takahashi C, DeCaprio J. Targeted disruption of p185/Cul7 gene results in abnormal vascular morphogenesis. Proc Natl Acad Sci U S A. 2003;100:9855-60 pubmed
    ..We demonstrate that p185 forms an SCF-like complex with Skp1, Rbx1, Fbw6 (Fbx29), and FAP68 (FAP48, glomulin)...
  4. Bhattacharya S, Lee Y, Michowski W, Jastrzebska B, Filipek A, Kuznicki J, et al. The modular structure of SIP facilitates its role in stabilizing multiprotein assemblies. Biochemistry. 2005;44:9462-71 pubmed
    ..SIP) was identified as a novel adaptor that physically links the E3 ubiquitin ligase activity of Siah-1 with Skp1 and Ebi F-Box protein in the degradation of beta-catenin, a transcriptional activator of TCF/LEF genes...
  5. Dias D, Dolios G, Wang R, Pan Z. CUL7: A DOC domain-containing cullin selectively binds Skp1.Fbx29 to form an SCF-like complex. Proc Natl Acad Sci U S A. 2002;99:16601-6 pubmed
    ..It is widely accepted that an F-box protein directs substrate ubiquitination within a Skp1.CUL1.F-box protein.ROC1 (SCF-ROC1) E3 ubiquitin ligase complex...
  6. Kumar R, Neilsen P, Crawford J, McKirdy R, Lee J, Powell J, et al. FBXO31 is the chromosome 16q24.3 senescence gene, a candidate breast tumor suppressor, and a component of an SCF complex. Cancer Res. 2005;65:11304-13 pubmed
    ..FBXO31 contains an F-box domain and is associated with the proteins Skp1, Roc-1, and Cullin-1, suggesting that FBXO31 is a component of a SCF ubiquitination complex...
  7. Schulman B, Carrano A, Jeffrey P, Bowen Z, Kinnucan E, Finnin M, et al. Insights into SCF ubiquitin ligases from the structure of the Skp1-Skp2 complex. Nature. 2000;408:381-6 pubmed
    ..F-box proteins are the substrate-recognition components of SCF (Skp1-Cullin-F-box protein) ubiquitin-protein ligases...
  8. Lyapina S, Correll C, Kipreos E, Deshaies R. Human CUL1 forms an evolutionarily conserved ubiquitin ligase complex (SCF) with SKP1 and an F-box protein. Proc Natl Acad Sci U S A. 1998;95:7451-6 pubmed
  9. Lyapina S, Cope G, Serino G, Tsuge T, Zhou C, Wolf D, et al. Promotion of NEDD-CUL1 conjugate cleavage by COP9 signalosome. Science. 2001;292:1382-5 pubmed
  10. Zheng J, Yang X, Harrell J, Ryzhikov S, Shim E, Lykke Andersen K, et al. CAND1 binds to unneddylated CUL1 and regulates the formation of SCF ubiquitin E3 ligase complex. Mol Cell. 2002;10:1519-26 pubmed
    ..We found the majority of CUL1 is in a complex with CAND1 and ROC1 independent of SKP1 and F box protein SKP2...
  11. Yoshida Y, Murakami A, Tanaka K. Skp1 stabilizes the conformation of F-box proteins. Biochem Biophys Res Commun. 2011;410:24-8 pubmed publisher
    The SCF ubiquitin ligase complex consists of four components, Skp1, Cul1, ROC1/Rbx1, and a variable subunit F-box protein, which serves as a receptor for target proteins...
  12. Read M, Brownell J, Gladysheva T, Hottelet M, Parent L, Coggins M, et al. Nedd8 modification of cul-1 activates SCF(beta(TrCP))-dependent ubiquitination of IkappaBalpha. Mol Cell Biol. 2000;20:2326-33 pubmed
    ..These observations provide a functional link between the highly related ubiquitin and Nedd8 pathways of protein modification and show how they operate together to selectively target the signal-dependent degradation of IkappaBalpha. ..
  13. Nowotny M, Spiechowicz M, Jastrzebska B, Filipek A, Kitagawa K, Kuznicki J. Calcium-regulated interaction of Sgt1 with S100A6 (calcyclin) and other S100 proteins. J Biol Chem. 2003;278:26923-8 pubmed
    ..A recently discovered yeast homolog of CacyBP/SIP, Sgt1, associates with Skp1 and regulates its function in the Skp1/Cullin1/F-box complex ubiquitin ligase and in kinetochore complexes...
  14. Price C, Al Khodor S, Al Quadan T, Santic M, Habyarimana F, Kalia A, et al. Molecular mimicry by an F-box effector of Legionella pneumophila hijacks a conserved polyubiquitination machinery within macrophages and protozoa. PLoS Pathog. 2009;5:e1000704 pubmed publisher
    ..expressed AnkB within mammalian cells is localized to the periphery of the cell where it co-localizes with host SKP1 and recruits polyubiquitinated proteins, which results in restoration of intracellular growth to the ankB mutant ..
  15. Niikura Y, Ohta S, Vandenbeldt K, Abdulle R, McEwen B, Kitagawa K. 17-AAG, an Hsp90 inhibitor, causes kinetochore defects: a novel mechanism by which 17-AAG inhibits cell proliferation. Oncogene. 2006;25:4133-46 pubmed
    ..We found that HSP90 associates with SGT1 (suppressor of G2 allele of skp1; SUGT1) in human cells and that depletion of SGT1 sensitizes HeLa cells to 17-AAG...
  16. Bassermann F, von Klitzing C, Münch S, Bai R, Kawaguchi H, Morris S, et al. NIPA defines an SCF-type mammalian E3 ligase that regulates mitotic entry. Cell. 2005;122:45-57 pubmed
    ..Thus, SCF(NIPA)-based ubiquitination may regulate S-phase completion and mitotic entry in the mammalian cell cycle. ..
  17. Oshikawa K, Matsumoto M, Yada M, Kamura T, Hatakeyama S, Nakayama K. Preferential interaction of TIP120A with Cul1 that is not modified by NEDD8 and not associated with Skp1. Biochem Biophys Res Commun. 2003;303:1209-16 pubmed
    The SCF complex, which consists of the invariable components Skp1, Cul1, and Rbx1 as well as a variable F-box protein, functions as an E3 ubiquitin ligase...
  18. Michel J, Xiong Y. Human CUL-1, but not other cullin family members, selectively interacts with SKP1 to form a complex with SKP2 and cyclin A. Cell Growth Differ. 1998;9:435-49 pubmed
    The budding yeast gene product, CDC53p, forms E3-like SCF complexes with SKP1 and F-box-containing proteins to mediate the ubiquitin-dependent degradation of G1 cyclins and cyclin-dependent kinase (CDK) inhibitors...
  19. Zhao J, Wei J, Mialki R, Mallampalli D, Chen B, Coon T, et al. F-box protein FBXL19-mediated ubiquitination and degradation of the receptor for IL-33 limits pulmonary inflammation. Nat Immunol. 2012;13:651-8 pubmed publisher
    ..Here we found that FBXL19, an 'orphan' member of the Skp1-Cullin-F-box family of E3 ubiquitin ligases, selectively bound to ST2L to mediate its polyubiquitination and ..
  20. Yu Z, Gervais J, Zhang H. Human CUL-1 associates with the SKP1/SKP2 complex and regulates p21(CIP1/WAF1) and cyclin D proteins. Proc Natl Acad Sci U S A. 1998;95:11324-9 pubmed
    ..In many transformed cells, the cyclin A/CDK2 complex that contains S-phase kinase associated proteins 1 and 2 (SKP1 and SKP2) is highly induced...
  21. Li Y, Hao B. Structural basis of dimerization-dependent ubiquitination by the SCF(Fbx4) ubiquitin ligase. J Biol Chem. 2010;285:13896-906 pubmed publisher
    The F-box proteins are the substrate recognition subunits of the SCF (Skp1-Cul1-Rbx1-F- box protein) ubiquitin ligase complexes that control the stability of numerous regulators in eukaryotic cells...
  22. Litterman N, Ikeuchi Y, Gallardo G, O Connell B, Sowa M, Gygi S, et al. An OBSL1-Cul7Fbxw8 ubiquitin ligase signaling mechanism regulates Golgi morphology and dendrite patterning. PLoS Biol. 2011;9:e1001060 pubmed publisher
  23. Lin H, Wang G, Chen Z, Teruya Feldstein J, Liu Y, Chan C, et al. Phosphorylation-dependent regulation of cytosolic localization and oncogenic function of Skp2 by Akt/PKB. Nat Cell Biol. 2009;11:420-32 pubmed publisher
    Skp2 is an F-box protein that forms the SCF complex with Skp1 and Cullin-1 to constitute an E3 ligase for ubiquitylation...
  24. Zhong J, Shaik S, Wan L, Tron A, Wang Z, Sun L, et al. SCF ?-TRCP targets MTSS1 for ubiquitination-mediated destruction to regulate cancer cell proliferation and migration. Oncotarget. 2013;4:2339-53 pubmed
    ..It further suggests that preventing MTSS1 degradation could be a possible novel strategy for clinical treatment of more aggressive breast and prostate cancers. ..
  25. Tada H, Okano H, Takagi H, Shibata S, Yao I, Matsumoto M, et al. Fbxo45, a novel ubiquitin ligase, regulates synaptic activity. J Biol Chem. 2010;285:3840-9 pubmed publisher
    ..We also found that Fbxo45 induces the degradation of a synaptic vesicle-priming factor, Munc13-1. We propose that Fbxo45 plays an important role in the regulation of neurotransmission by modulating Munc13-1 at the synapse. ..
  26. Chua Y, Boh B, Ponyeam W, Hagen T. Regulation of cullin RING E3 ubiquitin ligases by CAND1 in vivo. PLoS ONE. 2011;6:e16071 pubmed publisher
    ..In conclusion, our study suggests that CAND1 does not function by sequestering cullins in vivo to prevent substrate receptor autoubiquitination and is likely to regulate cullin RING ligase activity via alternative mechanisms. ..
  27. Zhang M, Boter M, Li K, Kadota Y, Panaretou B, Prodromou C, et al. Structural and functional coupling of Hsp90- and Sgt1-centred multi-protein complexes. EMBO J. 2008;27:2789-98 pubmed publisher
  28. Watanabe N, Arai H, Nishihara Y, Taniguchi M, Watanabe N, Hunter T, et al. M-phase kinases induce phospho-dependent ubiquitination of somatic Wee1 by SCFbeta-TrCP. Proc Natl Acad Sci U S A. 2004;101:4419-24 pubmed, we have identified the beta-transducin repeat-containing protein 1/2 (beta-TrCP1/2) F-box protein-containing SKP1/Cul1/F-box protein (SCF) complex (SCF(beta-TrCP1/2)) as an E3 ubiquitin ligase for Wee1A ubiquitination...
  29. Seki A, Coppinger J, Du H, Jang C, Yates J, Fang G. Plk1- and beta-TrCP-dependent degradation of Bora controls mitotic progression. J Cell Biol. 2008;181:65-78 pubmed publisher
    ..We conclude that tight regulation of the Bora protein by its synthesis and degradation is critical for cell cycle progression. ..
  30. Yang C, Yu C, Chuang H, Chang C, Chang G, Yao T, et al. FBW2 targets GCMa to the ubiquitin-proteasome degradation system. J Biol Chem. 2005;280:10083-90 pubmed
    ..We found that SKP1 and CUL1, two key components of the SCF complex, associate with hGCMa in vivo...
  31. Suzuki H, Chiba T, Suzuki T, Fujita T, Ikenoue T, Omata M, et al. Homodimer of two F-box proteins betaTrCP1 or betaTrCP2 binds to IkappaBalpha for signal-dependent ubiquitination. J Biol Chem. 2000;275:2877-84 pubmed
    ..These results indicate that not only betaTrCP1 but also betaTrCP2 participates in the ubiquitination-dependent destruction of IkappaBalpha by forming SCF(betaTrCP1-betaTrCP1) and SCF(betaTrCP2-betaTrCP2) ubiquitin-ligase complexes. ..
  32. Margottin F, Bour S, Durand H, Selig L, Benichou S, Richard V, et al. A novel human WD protein, h-beta TrCp, that interacts with HIV-1 Vpu connects CD4 to the ER degradation pathway through an F-box motif. Mol Cell. 1998;1:565-74 pubmed
    ..These data suggest that beta TrCP and Skp1p represent components of a novel ER-associated protein degradation pathway that mediates CD4 proteolysis. ..
  33. Duda D, Borg L, Scott D, Hunt H, Hammel M, Schulman B. Structural insights into NEDD8 activation of cullin-RING ligases: conformational control of conjugation. Cell. 2008;134:995-1006 pubmed publisher
    ..Thus, our results point to a conformational control of CRL activity, with ligation of NEDD8 shifting equilibria to disfavor inactive CAND1-bound closed architectures, and favor dynamic, open forms that promote polyubiquitination. ..
  34. Wu G, Xu G, Schulman B, Jeffrey P, Harper J, Pavletich N. Structure of a beta-TrCP1-Skp1-beta-catenin complex: destruction motif binding and lysine specificity of the SCF(beta-TrCP1) ubiquitin ligase. Mol Cell. 2003;11:1445-56 pubmed
    ..The 3.0 A structure of a beta-TrCP1-Skp1-beta-catenin complex reveals the basis of substrate recognition by the beta-TrCP1 WD40 domain...
  35. Carrano A, Eytan E, Hershko A, Pagano M. SKP2 is required for ubiquitin-mediated degradation of the CDK inhibitor p27. Nat Cell Biol. 1999;1:193-9 pubmed
    ..Thus, p27 degradation is subject to dual control by the accumulation of both SKP2 and cyclins following mitogenic stimulation. ..
  36. Hansen D, Loktev A, Ban K, Jackson P. Plk1 regulates activation of the anaphase promoting complex by phosphorylating and triggering SCFbetaTrCP-dependent destruction of the APC Inhibitor Emi1. Mol Biol Cell. 2004;15:5623-34 pubmed
    ..These data support the hypothesis that Plk1 activates the APC by directing the SCF-dependent destruction of Emi1 in prophase. ..
  37. Salahudeen A, Thompson J, Ruiz J, Ma H, Kinch L, Li Q, et al. An E3 ligase possessing an iron-responsive hemerythrin domain is a regulator of iron homeostasis. Science. 2009;326:722-6 pubmed publisher
    ..These observations suggest a mechanistic link between iron sensing via the FBXL5 hemerythrin domain, IRP2 regulation, and cellular responses to maintain mammalian iron homeostasis. ..
  38. Latres E, Chiaur D, Pagano M. The human F box protein beta-Trcp associates with the Cul1/Skp1 complex and regulates the stability of beta-catenin. Oncogene. 1999;18:849-54 pubmed
    ..the proteolysis of several G1 regulators is controlled by ubiquitin ligases (or SCFs) formed by three subunits: Skp1, Cul A (Cdc53), and one of many F-box proteins...
  39. Bai C, Sen P, Hofmann K, Ma L, Goebl M, Harper J, et al. SKP1 connects cell cycle regulators to the ubiquitin proteolysis machinery through a novel motif, the F-box. Cell. 1996;86:263-74 pubmed
    We have identified the yeast and human homologs of the SKP1 gene as a suppressor of cdc4 mutants and as a cyclin F-binding protein...
  40. Tsutsumi T, Kuwabara H, Arai T, Xiao Y, DeCaprio J. Disruption of the Fbxw8 gene results in pre- and postnatal growth retardation in mice. Mol Cell Biol. 2008;28:743-51 pubmed
    CUL7 binds to SKP1, RBX1, and FBXW8 to form a cullin-RING ligase, or an SKP1-cullin-F box protein complex. The targeted disruption of the Cul7 gene in mice results in significant reduction in embryo size and neonatal lethality...
  41. Bassermann F, von Klitzing C, Illert A, Münch S, Morris S, Pagano M, et al. Multisite phosphorylation of nuclear interaction partner of ALK (NIPA) at G2/M involves cyclin B1/Cdk1. J Biol Chem. 2007;282:15965-72 pubmed
    Nuclear interaction partner of ALK (NIPA) is an F-box-containing protein that defines a nuclear skp1 cullin F-box (SCF)-type ubiquitin E3 ligase (SCFNIPA) implicated in the regulation of mitotic entry...
  42. Lin D, Barbash O, Kumar K, Weber J, Harper J, Klein Szanto A, et al. Phosphorylation-dependent ubiquitination of cyclin D1 by the SCF(FBX4-alphaB crystallin) complex. Mol Cell. 2006;24:355-66 pubmed
    ..We demonstrate that Thr286-phosphorylated cyclin D1 is recognized by a Skp1-Cul1-F box (SCF) ubiquitin ligase where FBX4 and alphaB crystallin govern substrate specificity...
  43. Matsuzawa S, Reed J. Siah-1, SIP, and Ebi collaborate in a novel pathway for beta-catenin degradation linked to p53 responses. Mol Cell. 2001;7:915-26 pubmed
    ..were identified in which Siah is physically linked to Ebi by association with a novel Sgt1 homolog SIP that binds Skp1, a central component of Skp1-Cullin-F box complexes...
  44. Donzelli M, Squatrito M, Ganoth D, Hershko A, Pagano M, Draetta G. Dual mode of degradation of Cdc25 A phosphatase. EMBO J. 2002;21:4875-84 pubmed
    ..Moreover, SCF (Skp1/Cullin/F-box) inactivation using an interfering Cul1 mutant accumulates and stabilizes Cdc25 A...
  45. Lisztwan J, Marti A, Sutterlüty H, Gstaiger M, Wirbelauer C, Krek W. Association of human CUL-1 and ubiquitin-conjugating enzyme CDC34 with the F-box protein p45(SKP2): evidence for evolutionary conservation in the subunit composition of the CDC34-SCF pathway. EMBO J. 1998;17:368-83 pubmed
    ..and transformed cells, the F-box protein p45(SKP2) is required for S phase and forms stable complexes with p19(SKP1) and cyclin A-cyclin-dependent kinase (CDK)2...
  46. Saiga T, Fukuda T, Matsumoto M, Tada H, Okano H, Okano H, et al. Fbxo45 forms a novel ubiquitin ligase complex and is required for neuronal development. Mol Cell Biol. 2009;29:3529-43 pubmed publisher
    ..In addition, neuronal migration was impaired in Fbxo45(-)(/)(-) mice. These results suggest that Fbxo45 forms a novel Fbxo45-PAM ubiquitin ligase complex that plays an important role in neural development. ..
  47. Kim J, Kim J, Kim D, Ryu G, Bae S, Seo Y. SCFhFBH1 can act as helicase and E3 ubiquitin ligase. Nucleic Acids Res. 2004;32:2287-97 pubmed
    In our previous study, we found that a human F-box DNA helicase, named hFBH1, interacted with SKP1 to form an SCF (SKP1-Cul1-F-box protein) complex together with CUL1 and ROC1 in an F-box-dependent manner...
  48. Kawakami T, Chiba T, Suzuki T, Iwai K, Yamanaka K, Minato N, et al. NEDD8 recruits E2-ubiquitin to SCF E3 ligase. EMBO J. 2001;20:4003-12 pubmed
    ..NEDD8 is known to enhance the ubiquitylating activity of the SCF complex (composed of Skp1, Cul-1, ROC1 and F-box protein), but the mechanistic role is largely unknown...
  49. Bashir T, Pagan J, Busino L, Pagano M. Phosphorylation of Ser72 is dispensable for Skp2 assembly into an active SCF ubiquitin ligase and its subcellular localization. Cell Cycle. 2010;9:971-4 pubmed
    F-box proteins are the substrate recognition subunits of SCF (Skp1, Cul1, F-box protein) ubiquitin ligase complexes. Skp2 is a nuclear F-box protein that targets the CDK inhibitor p27 for ubiquitin- and proteasome-dependent degradation...
  50. Busino L, Bassermann F, Maiolica A, Lee C, Nolan P, Godinho S, et al. SCFFbxl3 controls the oscillation of the circadian clock by directing the degradation of cryptochrome proteins. Science. 2007;316:900-4 pubmed
    ..Silencing of Fbxl3 produced no effect in Cry1-/-;Cry2-/- cells, which shows that Fbxl3 controls clock oscillations by mediating the degradation of CRY proteins. ..
  51. Min K, Hwang J, Lee J, Park Y, Tamura T, Yoon J. TIP120A associates with cullins and modulates ubiquitin ligase activity. J Biol Chem. 2003;278:15905-10 pubmed
    ..TIP120A formed a complex with CUL1 and Rbx1, but interfered with the binding of Skp1 and F-box proteins to CUL1...
  52. Liu J, Furukawa M, Matsumoto T, Xiong Y. NEDD8 modification of CUL1 dissociates p120(CAND1), an inhibitor of CUL1-SKP1 binding and SCF ligases. Mol Cell. 2002;10:1511-8 pubmed
    ..CAND1 formed a ternary complex with CUL1 and ROC1. CAND1 dissociated SKP1 from CUL1 and inhibited SCF ligase activity in vitro...
  53. Liu J, Wan L, Liu P, Inuzuka H, Liu J, Wang Z, et al. SCF(?-TRCP)-mediated degradation of NEDD4 inhibits tumorigenesis through modulating the PTEN/Akt signaling pathway. Oncotarget. 2014;5:1026-37 pubmed