F-box domain found in Arabidopsis thaliana F-box protein GID2 and similar proteins; AtGID2, also called protein SLEEPY 1, is an essential component of the SCF-type E3 ligase complex, SCF(GID2), a complex that positively regulates the gibberellin signaling pathway. Upon gibberellin treatment, the SCF(GID2) complex mediates the ubiquitination and subsequent degradation of DELLA proteins (GAI, RGA and RGL2), some repressors of the gibberellin pathway, leading to the activation of the pathway. The F-box domain has a role in mediating protein-protein interactions in a variety of contexts, such as polyubiquitination, transcription elongation, centromere binding and translational repression.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|...
gi 2258242378  33 NLDENLLYEVLKHVDARTLATSSCVSKIWHRTAQDERLWELIC 75
Cdd:cd22151     2 KLPDDLLQEIFKRLDPKSLARAACVCRRWRAAARSESLWENAC 44

F-box domain found in Arabidopsis thaliana F-box protein GID2 and similar proteins; AtGID2, also called protein SLEEPY 1, is an essential component of the SCF-type E3 ligase complex, SCF(GID2), a complex that positively regulates the gibberellin signaling pathway. Upon gibberellin treatment, the SCF(GID2) complex mediates the ubiquitination and subsequent degradation of DELLA proteins (GAI, RGA and RGL2), some repressors of the gibberellin pathway, leading to the activation of the pathway. The F-box domain has a role in mediating protein-protein interactions in a variety of contexts, such as polyubiquitination, transcription elongation, centromere binding and translational repression.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|...
gi 2258242378  33 NLDENLLYEVLKHVDARTLATSSCVSKIWHRTAQDERLWELIC 75
Cdd:cd22151     2 KLPDDLLQEIFKRLDPKSLARAACVCRRWRAAARSESLWENAC 44

A Receptor for Ubiquitination Targets;

                           10        20        30
                   ....*....|....*....|....*....|....*...
gi 2258242378   34 LDENLLYEVLKHVDARTLATSSCVSKIWHRTAQDERLW 71
Cdd:smart00256   1 LPDEILEEILSKLDPKDLLRLRKVSRKWRSLIDSHDFW 38

F-box domain found in Arabidopsis thaliana F-box protein GID2 and similar proteins; AtGID2, also called protein SLEEPY 1, is an essential component of the SCF-type E3 ligase complex, SCF(GID2), a complex that positively regulates the gibberellin signaling pathway. Upon gibberellin treatment, the SCF(GID2) complex mediates the ubiquitination and subsequent degradation of DELLA proteins (GAI, RGA and RGL2), some repressors of the gibberellin pathway, leading to the activation of the pathway. The F-box domain has a role in mediating protein-protein interactions in a variety of contexts, such as polyubiquitination, transcription elongation, centromere binding and translational repression.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|...
gi 2258242378  33 NLDENLLYEVLKHVDARTLATSSCVSKIWHRTAQDERLWELIC 75
Cdd:cd22151     2 KLPDDLLQEIFKRLDPKSLARAACVCRRWRAAARSESLWENAC 44

F-box domain found in F-box/WD repeat-containing protein 5 (FBXW5) and similar proteins; FBXW5, also called F-box and WD-40 domain-containing protein 5, is the substrate-recognition component of both SCF (SKP1-CUL1-F-box protein) and DCX (DDB1-CUL4-X-box) E3 ubiquitin-protein ligase complexes. The F-box domain has a role in mediating protein-protein interactions in a variety of contexts, such as polyubiquitination, transcription elongation, centromere binding and translational repression.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|.
gi 2258242378  31 FANLDENLLYEVLKHVDARTLATSSCVSKIWHRTAQDERLW 71
Cdd:cd22132     1 WPLLPDSLLLHIFSYLSPKDLLAAGQVCKQWYRVSRDEFLW 41

F-box domain superfamily; This short domain is commonly found at the N-terminus of various proteins, and typically co-occurs with one or more other conserved domains or motifs, such as leucine rich repeats, WD40 repeats, kelch, tub, spry, and others. The F-box domain has a role in mediating protein-protein interactions in a variety of contexts, such as polyubiquitination, transcription elongation, centromere binding and translational repression. One of the best researched roles of F-box proteins is their participation in SCF (Skp1-Cul1-F-box protein), a multi-protein complex that functions as a ubiquitin E3 ligase, where the role of the F-box protein is to recruit target substrates. Gene families containing the F-box are found greatly expanded in narrow taxonomic lineages, such as flowering plants and nematodes. In this hierarchical classification, many of the subfamilies are named according to their domain architectures.

                          10        20        30
                  ....*....|....*....|....*....|....*
gi 2258242378  32 ANLDENLLYEVLKHVDARTLATSSCVSKIWHRTAQ 66
Cdd:cd09917     1 SDLPDEILLKILSYLDPRDLLRLSLVCKRWRELAS 35

F-box domain found in F-box only protein 8 (FBXO8) and similar proteins; FBXO8, also called FBX8, or F-box/SEC7 protein FBS, is a novel component of F-box proteins which contains an F-box domain and a putative Sec7 domain. FBX8 was originally identified as a Skp1-binding protein. It is involved in the ubiquitin-dependent proteolytic pathway. It acts as a metastasis suppressor that functions through mTOR signaling pathway. FBXO8 may promote the activation of ADP-ribosylation factor (ARF) through replacement of GDP with GTP. The F-box domain has a role in mediating protein-protein interactions in a variety of contexts, such as polyubiquitination, transcription elongation, centromere binding and translational repression.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....
gi 2258242378  32 ANLDENLLYEVLKHVDARTLATSSCVskiWHRTAQDERLWELIC 75
Cdd:cd22088     5 EELPPELSLTVLSHLNATDLCLASCV---WQDLANDELLWQGLC 45

F-box domain found in Schizosaccharomyces pombe Skp1-binding protein 1 (SpPof1) and similar proteins; SpPof1, also called F-box/WD repeat-containing protein pof1, probably recognizes and binds to some phosphorylated proteins and promotes their ubiquitination and degradation. It is required for the inactivation of zip1 via ubiquitination. This subfamily also includes Saccharomyces cerevisiae methionine-requiring protein 30 (ScMET30, also called E3 ubiquitin ligase complex SCF(Met30) subunit MET30), Aspergillus niger sulfur controller B (AnSCONB, also called sulfur metabolite repression control protein B) and Neurospora crassa sulfur controller 2 (NcSCON2, also called sulfur metabolite repression control protein 2). ScMET30 acts as a transcriptional inhibitor that negatively regulates the expression of sulfur amino acid biosynthesis genes. It controls cell cycle function (being required for the G1/S transition and M-phase but not the S-phase), sulfur metabolism, and methionine biosynthesis as part of the E3 ubiquitin ligase complex SCF(Met30). AnSCONB and NcSCON2 are components of the SCF (sconB/scon-2) E3 ubiquitin ligase complexes involved in the regulation of sulfur metabolite repression, probably by mediating the inactivation or degradation of the metR transcription factor. The F-box domain has a role in mediating protein-protein interactions in a variety of contexts, such as polyubiquitination, transcription elongation, centromere binding and translational repression.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*
gi 2258242378  31 FANLDENLLYEVLKHVDARTLATSSCVSKIWHRTAQDERLWELIC 75
Cdd:cd22147     2 LSALPVELSLKILSYLDAKSLCRAAQVSKKWRNLADDDELWKRMC 46

F-box domain found in F-box/WD repeat-containing protein 12 (FBXW12) and similar proteins; FBXW12, also called F-box and WD-40 domain-containing protein 12, or F-box only protein 35 (FBXO35), is the substrate-recognition component of the SCF (SKP1-CUL1-F-box protein)-type E3 ubiquitin ligase complex that mediates the ubiquitination and subsequent proteasomal degradation of target proteins. It functions as an epithelial growth suppressor. The F-box domain has a role in mediating protein-protein interactions in a variety of contexts, such as polyubiquitination, transcription elongation, centromere binding and translational repression.

                          10        20        30
                  ....*....|....*....|....*....|....*..
gi 2258242378  39 LYEVLKHVDARTLATSSCVSKIWHRTAQDERLWELIC 75
Cdd:cd22137     8 MLRIFSFLDAFSLLQAAQVNKQWNKVADSDYLWRNLC 44

F-box domain found in Drosophila melanogaster S-phase kinase-associated protein 2 (DmSKP2) and similar proteins; DmSKP2 is a Drosophila F-box protein that regulates cell proliferation by targeting Dacapo (Dap) for ubiquitination and proteasome-mediated degradation. It plays a role in maintaining diploidy of mitotic cells during development. The F-box domain has a role in mediating protein-protein interactions in a variety of contexts, such as polyubiquitination, transcription elongation, centromere binding and translational repression.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|.
gi 2258242378  31 FANLDENLLYEVLKHVDARTLATSSCVSKIWHRTAQDERLW 71
Cdd:cd22149     1 FERLSDEIILSIFKWLPKKTLARCARVCRRWKRLCFDESLW 41