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        40
                  ....*....|....*....|....*....|....*....|....
gi 2130914290  40 LQLPDLPTLKIFSFLDAFSLLQASQVNREWNRVAENDHLWRNLC 83
Cdd:cd22137     1 IQLPDLPMLRIFSFLDAFSLLQAAQVNKQWNKVADSDYLWRNLC 44

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        40
                  ....*....|....*....|....*....|....*....|....
gi 2130914290  40 LQLPDLPTLKIFSFLDAFSLLQASQVNREWNRVAENDHLWRNLC 83
Cdd:cd22137     1 IQLPDLPMLRIFSFLDAFSLLQAAQVNKQWNKVADSDYLWRNLC 44

WD40 repeat [General function prediction only];

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2130914290 158 TVSSKHVLYAWDVQEGTMIWSSPVQQSSITHLATLPQMHLAFTVDLEGTVKVWNCQDQDALATF-----PVSQACFSlev 232
Cdd:COG2319   179 SGSDDGTVRLWDLATGKLLRTLTGHTGAVRSVAFSPDGKLLASGSADGTVRLWDLATGKLLRTLtghsgSVRSVAFS--- 255

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2130914290 233 cltKDGPFLMVGNSEGDIYTLTVPELRGVSKVHAFKYTVDLLHCSPDKKWVfASGTHQNILpRVFFTEC--LLKPSEGKS 310
Cdd:COG2319   256 ---PDGRLLASGSADGTVRLWDLATGELLRTLTGHSGGVNSVAFSPDGKLL-ASGSDDGTV-RLWDLATgkLLRTLTGHT 330

                  ....*....
gi 2130914290 311 PLSLSIPFS 319
Cdd:COG2319   331 GAVRSVAFS 339

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        40
                  ....*....|....*....|....*....|....*....|....
gi 2130914290  40 LQLPDLPTLKIFSFLDAFSLLQASQVNREWNRVAENDHLWRNLC 83
Cdd:cd22137     1 IQLPDLPMLRIFSFLDAFSLLQAAQVNKQWNKVADSDYLWRNLC 44

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 2130914290  41 QLPDLPTLKIFSFLDAFSLLQASQVNREWNRVAENDHLWRNLC 83
Cdd:cd22147     4 ALPVELSLKILSYLDAKSLCRAAQVSKKWRNLADDDELWKRMC 46

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 2130914290  41 QLPDLPTLKIFSFLDAFSLLQASQVNREWNRVAENDHLWRNLC 83
Cdd:cd22151     2 KLPDDLLQEIFKRLDPKSLARAACVCRRWRAAARSESLWENAC 44

F-box domain found in F-box only protein 3 (FBXO3) and similar proteins; FBXO3, also called FBX3, is the substrate-recognition component of an SCF (SKP1-CUL1-F-box protein)-type E3 ubiquitin ligase complex. It mediates the ubiquitination of HIPK2 and probably that of EP300, leading to rapid degradation by the proteasome. It also promotes ubiquitylation and transcriptional activity of AIRE (autoimmune regulator). 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 2130914290  42 LPDLPTLKIFSFLDAFSLLQASQVNREWNRVAENDHLWRNLCLKKW 87
Cdd:cd22084     4 LPSDPLLNILSFLDYRDLISCSQVCRRLNQLCSHDPLWKRLCKKYW 49

F-box domain found in Dictyostelium discoideum Rho GTPase-activating protein gacFF (DdgacFF) and similar proteins; DdgacFF, also called GTPase activating factor for raC protein FF, is a Rho GTPase-activating protein involved in the signal transduction 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
                  ....*....|....*....|....*....|....*....
gi 2130914290  42 LPDLPTLKIFSFLDAFSLLQASQVNREWNRVAENDHLWR 80
Cdd:cd22148     5 LPEHLALKILSYLSPKELLIASQVSKTWRRLASSNELWK 43

F-box domain found in F-box only protein 16 (FBXO16), epithelial cell-transforming sequence 2 oncogene-like (ECT2L) and similar proteins; This family includes FBXO16 and ECT2L. FBXO16, also called FBX16, is part of an SCF (SKP1-cullin-F-box) protein ligase complex. It probably recognizes and binds to some phosphorylated proteins and promotes their ubiquitination and degradation. It functions as a tumor suppressor by attenuating nuclear beta-catenin function. ECT2L, also called lung-specific F-box and DH domain-containing protein, or putative guanine nucleotide exchange factor LFDH, may act as a guanine nucleotide exchange factor (GEF). 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 2130914290  41 QLPDLPTLKIFSFLDAFSLLQASQVNREWNRVAENDHLWRNLCLK 85
Cdd:cd22094     5 VLPRFLSLYIFSYLDPRSLCRAAQVSWYWKFLCESDELWLPKCLR 49

F-box domain found in F-box only protein 16 (FBXO16) and similar proteins; FBXO16, also called FBX16, is part of an SCF (SKP1-cullin-F-box) protein ligase complex. It probably recognizes and binds to some phosphorylated proteins and promotes their ubiquitination and degradation. It functions as a tumor suppressor by attenuating nuclear beta-catenin function. 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 2130914290  41 QLPDLPTLKIFSFLDAFSLLQASQVNREWNRVAENDHLWRNLCLK 85
Cdd:cd22172     8 VLPRVLSLYIFSFLDPRSLCRCAQVCWYWKYLTELDQLWMPKCLR 52

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 2130914290  40 LQLPDLPTLKIFSFLDAFSLLQASQVNREWNRVAE 74
Cdd:cd09917     1 SDLPDEILLKILSYLDPRDLLRLSLVCKRWRELAS 35

F-box domain found in F-box only protein 11 (FBXO11) and similar proteins; FBXO11, also called FBX11, protein arginine N-methyltransferase 9 (PRMT9), or vitiligo-associated protein 1 (VIT-1), is the substrate-recognition component of an SCF (SKP1-CUL1-F-box protein) E3 ubiquitin-protein ligase complex which mediates the ubiquitination and subsequent proteasomal degradation of target proteins, such as DTL/CDT2, BCL6 and PRDM1/BLIMP1. 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 2130914290  41 QLPDLPTLKIFSFLDAFSLLQASQVNREWNRVAENDHLWRNL 82
Cdd:cd22091     3 ELPDEVLLKIFSYLLEQDLCRAAQVCKRFNTLANDPELWKRL 44

F-box domain found in F-box/LRR-repeat protein 5 (FBXL5) and similar proteins; FBXL5, also called F-box and leucine-rich repeat protein 5, F-box protein FBL4/FBL5, or p45SKP2-like protein, is the substrate-recognition component of an SCF (SKP1-cullin-F-box) protein ligase complex that plays a central role in iron homeostasis by promoting the ubiquitination and subsequent degradation of IREB2/IRP2. 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 2130914290  41 QLPDLPTLKIFSFLDAFSLLQASQVNREWNRVAENDHLW 79
Cdd:cd22118     3 SLPPEIMLKIFSYLNPQDLCRCAQVCTKWSQLARDGSLW 41

F-box domain found in F-box only protein 7 (FBXO7) and similar proteins; FBXO7, also called FBX7, is the substrate-recognition component of an SCF (SKP1-CUL1-F-box protein) E3 ubiquitin-protein ligase complex which mediates the ubiquitination and subsequent proteasomal degradation of target proteins. It recognizes BIRC2 and DLGAP5. FBXO7 plays a role downstream of PINK1 in the clearance of damaged mitochondria via selective autophagy (mitophagy) by targeting PRKN to dysfunctional depolarized mitochondria. It promotes MFN1 ubiquitination. FBXO7 acts as a cell cycle regulator by enhancing cyclin D/cyclin-dependent kinase 6 (Cdk6) complex formation and stabilizing levels of p27, a cyclin-dependent kinase inhibitor. Mutations in the FBXO7 (PARK15) gene have been implicated in a juvenile form of parkinsonism called parkinsonian pyramidal syndrome (PPS), characterized by Parkinsonian symptoms and pyramidal tract signs. 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 2130914290  40 LQLPDLPTLKIFSFLDAFSLLQASQVNREWNRVAENDHLWRNLC 83
Cdd:cd22087     2 LALPPEIKLRILSLLDVRSLLSLSQVCRDLNSATNDQLLWRFLL 45

F-box domain found in F-box/LRR-repeat protein 1 (FBXL1) and similar proteins; FBXL1, also called S-phase kinase-associated protein 2, cyclin-A/CDK2-associated protein p45, F-box protein Skp2, or p45skp2, is the substrate-recognition component of an SCF (SKP1-CUL1-F-box protein) E3 ubiquitin-protein ligase complex which mediates the ubiquitination and subsequent proteasomal degradation of target proteins involved in cell cycle progression, signal transduction and transcription. It specifically recognizes phosphorylated CDKN1B/p27kip and is involved in regulation of G1/S transition. 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 2130914290  41 QLPDLPTLKIFSFLDAFSLLQASQVNREWNRVAENDHLW 79
Cdd:cd22114     3 SLPDELLLGIFSCLCLPDLLKVSQVCKRWYRLASDESLW 41

WD40 repeat [General function prediction only];

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2130914290 158 TVSSKHVLYAWDVQEGTMIWSSPVQQSSITHLATLPQMHLAFTVDLEGTVKVWNCQDQDALATF-----PVSQACFSlev 232
Cdd:COG2319   263 SGSADGTVRLWDLATGELLRTLTGHSGGVNSVAFSPDGKLLASGSDDGTVRLWDLATGKLLRTLtghtgAVRSVAFS--- 339

                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 2130914290 233 cltKDGPFLMVGNSEGDI--YTLTVPELRGVSKVHAfkYTVDLLHCSPDKKWVfASG 287
Cdd:COG2319   340 ---PDGKTLASGSDDGTVrlWDLATGELLRTLTGHT--GAVTSVAFSPDGRTL-ASG 390

A Receptor for Ubiquitination Targets;

                           10        20        30        40
                   ....*....|....*....|....*....|....*....|.
gi 2130914290   42 LPDLPTLKIFSFLDAFSLLQASQVNREWNRVAENDHLWRNL 82
Cdd:smart00256   1 LPDEILEEILSKLDPKDLLRLRKVSRKWRSLIDSHDFWFKL 41

F-box domain found in F-box/WD repeat-containing protein 2 (FBXW2) and similar proteins; FBXW2, also called F-box and WD-40 domain-containing protein 2, or protein MD6, is the substrate-recognition component of an SCF (SKP1-CUL1-F-box protein)-type E3 ubiquitin ligase complex. It acts as a tumor suppressor by promoting SKP2 degradation. 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 2130914290  41 QLPDLPTLKIFSFLDAFSLLQASQVNREWNRVAEND 76
Cdd:cd22131     5 LLPLELSFYLLSFLDPESLLTCCLVSKQWNKVISSC 40

F-box domain found in F-box/WD repeat-containing protein 1B (FBXW1B) and similar proteins; FBXW1B, also called F-box/WD repeat-containing protein 11 (FBXW11), F-box and WD repeats protein beta-TrCP2, or homologous to Slimb protein (HOS), is the substrate-recognition component of an SCF (SKP1-CUL1-F-box protein) E3 ubiquitin-protein ligase complex which mediates the ubiquitination and subsequent proteasomal degradation of target proteins, such as IFNAR1, CEP68 and CDC25A, as well as phosphorylated CTNNB1, NFKBIA, PER1 and PER2. 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 2130914290  49 KIFSFLDAFSLLQASQVNREWNRVAENDHLWR 80
Cdd:cd22183    19 NILSYLDAESLCAAELVCKEWQRVISEGMLWK 50

F-box domain found in the early mitotic inhibitor (EMI) family of F-box proteins; The EMI family includes FBX5 (EMI1) and FBX43 (EMI2), which are anaphase-promoting complex/cyclosome (APC/C) inhibitors that bind APC/C-CCD20 (Cell division cycle protein 20) and/or APC/C-CDH1 (CDC20 homologue 1) 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
                  ....*....|....*....|....*...
gi 2130914290  49 KIFSFLDAFSLLQASQVNREWNRVAEND 76
Cdd:cd22086    14 KILSYLSPEDLCRVSCVSKTWRQICLSD 41

F-box domain found in F-box/LRR-repeat protein 4 (FBXL4) and similar proteins; FBXL4, also called F-box and leucine-rich repeat protein 4, or F-box protein FBL4/FBL5, is part of an SCF (SKP1-cullin-F-box) protein ligase complex. It serves as a clock output molecule that regulates sleep through promotion of rhythmic degradation of the GABA(A) receptor. Biallelic pathogenic variants in FBXL4 are associated with an encephalopathic mtDNA maintenance defect syndrome that is a multi-system disease characterized by lactic acidemia, developmental delay, and hypotonia. 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 2130914290  42 LPDLPTLKIFSFLDAFSLLQASQVNREWNRVAENDHLWRNLCLK 85
Cdd:cd22117     4 LPYELIQLILSYLDLPSLCRLSQTCKLFRKHCYDPLLWKELNLQ 47

F-box domain found in F-box/LRR-repeat protein 7 (FBXL7) and similar proteins; FBXL7, also called F-box and leucine-rich repeat protein 7, or F-box protein FBL6/FBL7, is the substrate-recognition component of an SCF (SKP1-CUL1-F-box protein) E3 ubiquitin-protein ligase complex which mediates the ubiquitination and subsequent proteasomal degradation of Aurora kinase A (AURKA) during mitosis, causing mitotic arrest. 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 2130914290  42 LPDLPTLKIFSFLDAFSLLQASQVNREWNRVAENDHLWRNL 82
Cdd:cd22120     4 LPDDVILQIFSHLPTNQLCRCARVCRRWYNLAWDPRLWTTI 44