PHD finger found in F-box and leucine-rich repeat protein 19 (FBXL19); FBXL19, also termed F-box/LRR-repeat protein 19, is a novel homolog of KDM2A and KDM2B. It belongs to the Skp1-Cullin-F-box (SCF) family of E3 ubiquitin ligases. FBXL19 mediates ubiquitination and interleukin 33 (IL-33)-induced degradation of ST2L receptor in lung epithelia, blocks IL-33-mediated apoptosis, and prevents endotoxin-induced acute lung injury. It also functions as a RhoA antagonist during cell proliferation and cytoskeleton rearrangement, and regulates RhoA ubiquitination and degradation in lung epithelial cells. Moreover, FBXL19 regulates cell migration by targeting Rac1 for its polyubiquitination and proteasomal degradation. It plays an essential role in regulating TGFbeta1-induced E-cadherin down-regulation by mediating Rac3 site-specific ubiquitination and stability. FBXL19 consists of FBXHA and FBXHB domains. A CXXC zinc-finger domain, followed by a plant homeodomain (PHD) finger, is located within the FBXHA domain, and an F-box domain, followed by an antagonist of mitotic exit network protein 1 (AMN1) domain, is located within the FBXHB domain.

                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1844084097  67 VCLLCGEAGKEDTVEGEEEKFGLSLMECTICNEIVHPGCLKMGKAEGVINAEIPNCWECPRC 128
Cdd:cd15645     1 VCLACGEAGKEDTAEGEEEKFDLSLMECTICNEIIHPGCLKMGKAEGVINAEIPNCWECPKC 62

Antagonist of mitotic exit network protein 1; Amn1 has been functionally characterized in Saccharomyces cerevisiae as a component of the Antagonist of MEN pathway (AMEN). The AMEN network is activated by MEN (mitotic exit network) via an active Cdc14, and in turn switches off MEN. Amn1 constitutes one of the alternative mechanisms by which MEN may be disrupted. Specifically, Amn1 binds Tem1 (Termination of M-phase, a GTPase that belongs to the RAS superfamily), and disrupts its association with Cdc15, the primary downstream target. Amn1 is a leucine-rich repeat (LRR) protein, with 12 repeats in the S. cerevisiae ortholog. As a negative regulator of the signal transduction pathway MEN, overexpression of AMN1 slows the growth of wild type cells. The function of the vertebrate members of this family has not been determined experimentally, they have fewer LRRs that determine the extent of this model.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1844084097 403 LSRRKSLTPPMLSGVVRRQPRA---LDLSWTGVSKKQLMWLLNrLQGLQELVLSGC-----SWLSVSALGsapLPALRLL 474
Cdd:cd09293     8 LHKLGQITQSNISQLLRILHSGlewLELYMCPISDPPLDQLSN-CNKLKKLILPGSkliddEGLIALAQS---CPNLQVL 83

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1844084097 475 DLRWIEDVKDSQLRELLLPPPDTkpgQTESRGRLQGvaelrlaGLELTDASLRLLLRHAPQLSALDLSHCaHVGDPSVHL 554
Cdd:cd09293    84 DLRACENITDSGIVALATNCPKL---QTINLGRHRN-------GHLITDVSLSALGKNCTFLQTVGFAGC-DVTDKGVWE 152

                         170       180       190       200       210
                  ....*....|....*....|....*....|....*....|....*....|.
gi 1844084097 555 LTAPTSPlreTLVHLNLAGCHRLTDHCLPL---FRRCPRLRRLDLRSCRQL 602
Cdd:cd09293   153 LASGCSK---SLERLSLNNCRNLTDQSIPAilaSNYFPNLSVLEFRGCPLI 200

PHD finger found in F-box and leucine-rich repeat protein 19 (FBXL19); FBXL19, also termed F-box/LRR-repeat protein 19, is a novel homolog of KDM2A and KDM2B. It belongs to the Skp1-Cullin-F-box (SCF) family of E3 ubiquitin ligases. FBXL19 mediates ubiquitination and interleukin 33 (IL-33)-induced degradation of ST2L receptor in lung epithelia, blocks IL-33-mediated apoptosis, and prevents endotoxin-induced acute lung injury. It also functions as a RhoA antagonist during cell proliferation and cytoskeleton rearrangement, and regulates RhoA ubiquitination and degradation in lung epithelial cells. Moreover, FBXL19 regulates cell migration by targeting Rac1 for its polyubiquitination and proteasomal degradation. It plays an essential role in regulating TGFbeta1-induced E-cadherin down-regulation by mediating Rac3 site-specific ubiquitination and stability. FBXL19 consists of FBXHA and FBXHB domains. A CXXC zinc-finger domain, followed by a plant homeodomain (PHD) finger, is located within the FBXHA domain, and an F-box domain, followed by an antagonist of mitotic exit network protein 1 (AMN1) domain, is located within the FBXHB domain.

                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1844084097  67 VCLLCGEAGKEDTVEGEEEKFGLSLMECTICNEIVHPGCLKMGKAEGVINAEIPNCWECPRC 128
Cdd:cd15645     1 VCLACGEAGKEDTAEGEEEKFDLSLMECTICNEIIHPGCLKMGKAEGVINAEIPNCWECPKC 62

F-box domain found in the JmjC domain-containing histone demethylation protein (JHDM) family; The JHDM family includes F-box/LRR-repeat proteins FBXL10, FBXL11 and FBXL19. FBXL10 is also called lysine-specific demethylase 2B (KDM2B), CXXC-type zinc finger protein 2 (CXXC2), F-box and leucine-rich repeat protein 10 (FBL10), JmjC domain-containing histone demethylation protein 1B (JHDM1B), Jumonji domain-containing EMSY-interactor methyltransferase motif protein, protein JEMMA, protein-containing CXXC domain 2, [Histone-H3]-lysine-36 demethylase 1B, or NDY1. It is a histone demethylase that catalyzes the demethylation of H3K4me3 and H3K36me2, thereby playing a central role in the histone code. It preferentially binds the transcribed region of ribosomal RNA and represses the transcription of ribosomal RNA genes which inhibits cell growth and proliferation. FBXL10 may also serve as the substrate-recognition component of an SCF (SKP1-CUL1-F-box protein)-type E3 ubiquitin ligase complex. FBXL11, also called KDM2A, CXXC8, F-box and leucine-rich repeat protein 11, F-box protein FBL7, F-box protein Lilina, JmjC domain-containing histone demethylation protein 1A (JHDM1A), or [Histone-H3]-lysine-36 demethylase 1A, is a histone H3 lysine 36 (H3K36) demethylase that regulates epithelial mesenchymal transition (EMT) and the metastasis of ovarian cancer. It plays an essential role in embryonic development and homeostasis by regulating cell proliferation and survival. FBXL11 may also recognize and bind to some phosphorylated proteins and promote their ubiquitination and degradation. It associates with centromeres and represses transcription of small non-coding RNAs that are encoded by the clusters of satellite repeats at the centromere. It is required to sustain centromeric integrity and genomic stability, particularly during mitosis. FBXL19, also called F-box and leucine-rich repeat protein 19, is the substrate-recognition component of an SCF-type E3 ubiquitin ligase complex. It acts as a CpG island-binding protein in mouse embryonic stem (ES) cells and has been shown to associate with the CDK-Mediator complex. It promotes H2Bub1 at the promoters of CpG island-containing genes by interacting with RNF20. 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 1844084097 358 DHPLPRAAWLRVFQHLGPRELCICMRVCRTWSRWCYDKRLWPR 400
Cdd:cd22122     1 NHVLPREVWLPVFQYLSPKDLCVCMRVCKTWNRWCCDPSLWKR 43

CXXC zinc finger domain; This domain contains eight conserved cysteine residues that bind to two zinc ions. The CXXC domain is found in a variety of chromatin-associated proteins. This domain binds to nonmethyl-CpG dinucleotides. The domain is characterized by two repeats, and shows a peculiar internal duplication in which the second unit is inserted into the first one. Each of these units is characterized by four conserved cysteines, displaying a CXXCXXCX(n)C motif that chelate a Zn+2 ion. The DNA binding interface has been identified by NMR. In eukaryotes, the CXXC domain is found in stramenopiles, plants and metazoans. Plants possess a mono-CXXC domain that is present in distinct chromatin proteins. Structural comparisons show that the mono-CXXC is homologous to the structural-zinc binding domain of medium chain dehydrogenases.

                          10        20
                  ....*....|....*....|....*...
gi 1844084097  30 CGDCHFCRDMKKFGGPGRMKQSCLLRQC 57
Cdd:pfam02008  21 CGQCSFCLDMPKFGGPGKKKQKCRLRRC 48

Leucine-rich repeat (LRR) protein [Transcription];

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1844084097 425 LDLSWTGVSkkQLMWLLNRLQGLQELVLSGCSwlsVSALGS--APLPALRLLDLRwiedvkDSQLRELllpppdtkpgqT 502
Cdd:COG4886   118 LDLSGNQLT--DLPEELANLTNLKELDLSNNQ---LTDLPEplGNLTNLKSLDLS------NNQLTDL-----------P 175

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1844084097 503 ESRGRLQGVAELRLAGLELTDasLRLLLRHAPQLSALDLSHCAhvgdpsVHLLTAPTSPLREtLVHLNLAGChRLTDhcL 582
Cdd:COG4886   176 EELGNLTNLKELDLSNNQITD--LPEPLGNLTNLEELDLSGNQ------LTDLPEPLANLTN-LETLDLSNN-QLTD--L 243

                         170       180
                  ....*....|....*....|....*.
gi 1844084097 583 PLFRRCPRLRRLDLRSCR--QLSPEA 606
Cdd:COG4886   244 PELGNLTNLEELDLSNNQltDLPPLA 269

A Receptor for Ubiquitination Targets;

                           10        20
                   ....*....|....*....|....*...
gi 1844084097  361 LPRAAWLRVFQHLGPRELCICMRVCRTW 388
Cdd:smart00256   1 LPDEILEEILSKLDPKDLLRLRKVSRKW 28

PHD finger found in F-box and leucine-rich repeat protein 19 (FBXL19); FBXL19, also termed F-box/LRR-repeat protein 19, is a novel homolog of KDM2A and KDM2B. It belongs to the Skp1-Cullin-F-box (SCF) family of E3 ubiquitin ligases. FBXL19 mediates ubiquitination and interleukin 33 (IL-33)-induced degradation of ST2L receptor in lung epithelia, blocks IL-33-mediated apoptosis, and prevents endotoxin-induced acute lung injury. It also functions as a RhoA antagonist during cell proliferation and cytoskeleton rearrangement, and regulates RhoA ubiquitination and degradation in lung epithelial cells. Moreover, FBXL19 regulates cell migration by targeting Rac1 for its polyubiquitination and proteasomal degradation. It plays an essential role in regulating TGFbeta1-induced E-cadherin down-regulation by mediating Rac3 site-specific ubiquitination and stability. FBXL19 consists of FBXHA and FBXHB domains. A CXXC zinc-finger domain, followed by a plant homeodomain (PHD) finger, is located within the FBXHA domain, and an F-box domain, followed by an antagonist of mitotic exit network protein 1 (AMN1) domain, is located within the FBXHB domain.

                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1844084097  67 VCLLCGEAGKEDTVEGEEEKFGLSLMECTICNEIVHPGCLKMGKAEGVINAEIPNCWECPRC 128
Cdd:cd15645     1 VCLACGEAGKEDTAEGEEEKFDLSLMECTICNEIIHPGCLKMGKAEGVINAEIPNCWECPKC 62

PHD-finger;

                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 1844084097  62 LPHTAVCLLCGEAGKEDTVEGEEekFGLSLMECTICNEIVHPGCLKMGKAEGVINAEIPNCWECPRCT 129
Cdd:pfam16866   1 LPVTAVCIFCGEDGWEDPPEESE--TPSELMECSICYEIVHPQCAKEQNGEGVVNDDLPNSWECPKCC 66

F-box domain found in the JmjC domain-containing histone demethylation protein (JHDM) family; The JHDM family includes F-box/LRR-repeat proteins FBXL10, FBXL11 and FBXL19. FBXL10 is also called lysine-specific demethylase 2B (KDM2B), CXXC-type zinc finger protein 2 (CXXC2), F-box and leucine-rich repeat protein 10 (FBL10), JmjC domain-containing histone demethylation protein 1B (JHDM1B), Jumonji domain-containing EMSY-interactor methyltransferase motif protein, protein JEMMA, protein-containing CXXC domain 2, [Histone-H3]-lysine-36 demethylase 1B, or NDY1. It is a histone demethylase that catalyzes the demethylation of H3K4me3 and H3K36me2, thereby playing a central role in the histone code. It preferentially binds the transcribed region of ribosomal RNA and represses the transcription of ribosomal RNA genes which inhibits cell growth and proliferation. FBXL10 may also serve as the substrate-recognition component of an SCF (SKP1-CUL1-F-box protein)-type E3 ubiquitin ligase complex. FBXL11, also called KDM2A, CXXC8, F-box and leucine-rich repeat protein 11, F-box protein FBL7, F-box protein Lilina, JmjC domain-containing histone demethylation protein 1A (JHDM1A), or [Histone-H3]-lysine-36 demethylase 1A, is a histone H3 lysine 36 (H3K36) demethylase that regulates epithelial mesenchymal transition (EMT) and the metastasis of ovarian cancer. It plays an essential role in embryonic development and homeostasis by regulating cell proliferation and survival. FBXL11 may also recognize and bind to some phosphorylated proteins and promote their ubiquitination and degradation. It associates with centromeres and represses transcription of small non-coding RNAs that are encoded by the clusters of satellite repeats at the centromere. It is required to sustain centromeric integrity and genomic stability, particularly during mitosis. FBXL19, also called F-box and leucine-rich repeat protein 19, is the substrate-recognition component of an SCF-type E3 ubiquitin ligase complex. It acts as a CpG island-binding protein in mouse embryonic stem (ES) cells and has been shown to associate with the CDK-Mediator complex. It promotes H2Bub1 at the promoters of CpG island-containing genes by interacting with RNF20. 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 1844084097 358 DHPLPRAAWLRVFQHLGPRELCICMRVCRTWSRWCYDKRLWPR 400
Cdd:cd22122     1 NHVLPREVWLPVFQYLSPKDLCVCMRVCKTWNRWCCDPSLWKR 43

F-box domain found in F-box/LRR-repeat protein 10 (FBXL10) and similar proteins; FBXL10 is also called lysine-specific demethylase 2B (KDM2B), CXXC-type zinc finger protein 2 (CXXC2), F-box and leucine-rich repeat protein 10, F-box protein FBL10, JmjC domain-containing histone demethylation protein 1B (JHDM1B), Jumonji domain-containing EMSY-interactor methyltransferase motif protein, protein JEMMA, protein-containing CXXC domain 2, [Histone-H3]-lysine-36 demethylase 1B, or NDY1. It is a histone demethylase that catalyzes the demethylation of H3K4me3 and H3K36me2, thereby playing a central role in the histone code. It preferentially binds the transcribed region of ribosomal RNA and represses the transcription of ribosomal RNA genes which inhibits cell growth and proliferation. FBXL10 may also serve as the substrate-recognition component of an SCF (SKP1-CUL1-F-box protein)-type E3 ubiquitin ligase complex. 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 1844084097 356 GSDHPLPRAAWLRVFQHLGPRELCICMRVCRTWSRWCYDKRLWPR 400
Cdd:cd22180     1 GAAHVMQREVWMAVFSYLSHRDLCVCMRVCRTWNRWCCDKRLWTR 45

F-box domain found in F-box/LRR-repeat protein 11 (FBXL11) and similar proteins; FBXL11, also called lysine-specific demethylase 2A (KDM2A), CXXC-type zinc finger protein (CXXC8), F-box and leucine-rich repeat protein 11, F-box protein FBL7, F-box protein Lilina, JmjC domain-containing histone demethylation protein 1A (JHDM1A), or [Histone-H3]-lysine-36 demethylase 1A, is a histone H3 lysine 36 (H3K36) demethylase that regulates epithelial mesenchymal transition (EMT) and the metastasis of ovarian cancer. It plays an essential role in embryonic development and homeostasis by regulating cell proliferation and survival. FBXL11 may also recognize and bind to some phosphorylated proteins and promote their ubiquitination and degradation. It associates with centromeres and represses transcription of small non-coding RNAs that are encoded by the clusters of satellite repeats at the centromere. It is required to sustain centromeric integrity and genomic stability, particularly during mitosis. 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 1844084097 355 AGSDHPLPRAAWLRVFQHLGPRELCICMRVCRTWSRWCYDKRLWPR 400
Cdd:cd22181     2 AGDESWMQKDVWMSVFRYLSRRELCECMRVCKTWYKWCCDKRLWTK 47

F-box-like; This is an F-box-like family.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|..
gi 1844084097 361 LPRAAWLRVFQHLGPRELCICMRVCRTWSRWCYDKRLWPRMD 402
Cdd:pfam12937   4 LPDEILLQIFSYLDPKDLLRLALVCRRWRELASDDSLWRRLC 45

Leucine-rich repeat (LRR) protein [Transcription];

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1844084097 425 LDLSWTGVSkkQLMWLLNRLQGLQELVLSGCSwlsVSALGS--APLPALRLLDLRwiedvkDSQLRELllpppdtkpgqT 502
Cdd:COG4886   118 LDLSGNQLT--DLPEELANLTNLKELDLSNNQ---LTDLPEplGNLTNLKSLDLS------NNQLTDL-----------P 175

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1844084097 503 ESRGRLQGVAELRLAGLELTDasLRLLLRHAPQLSALDLSHCAhvgdpsVHLLTAPTSPLREtLVHLNLAGChRLTDhcL 582
Cdd:COG4886   176 EELGNLTNLKELDLSNNQITD--LPEPLGNLTNLEELDLSGNQ------LTDLPEPLANLTN-LETLDLSNN-QLTD--L 243

                         170       180
                  ....*....|....*....|....*.
gi 1844084097 583 PLFRRCPRLRRLDLRSCR--QLSPEA 606
Cdd:COG4886   244 PELGNLTNLEELDLSNNQltDLPPLA 269

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 1844084097 361 LPRAAWLRVFQHLGPRELCICMRVCRTWSRWCYDKRLW 398
Cdd:cd22148     5 LPEHLALKILSYLSPKELLIASQVSKTWRRLASSNELW 42

F-box domain found in F-box/LRR-repeat protein 12 (FBXL12) and similar proteins; FBXL12, also called F-box and leucine-rich repeat protein 12, or F-box protein FBL12, is the substrate-recognition component of an SCF (SKP1-CUL1-F-box protein)-type E3 ubiquitin ligase complex. It mediates the polyubiquitination and proteasomal degradation of calcium/calmodulin dependent protein kinase I (CAMK1) leading to disruption of cyclin D1/CDK4 complex assembly, which results in G1 cell cycle arrest in lung epithelia. It regulates T-cell differentiation in a cell-autonomous manner. 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 1844084097 361 LPRAAWLRVFQHLGPRELCICMRVCRTWSRWCYDKRLW 398
Cdd:cd22123     4 LPENVLLEILSYLPVRDLLRISRVCKRWRRLVYDKTLW 41

F-box domain found in F-box/WD repeat-containing protein 8 (FBXW8) and similar proteins; FBXW8, also called F-box and WD-40 domain-containing protein 8, or F-box only protein 29 (FBXO29), is the substrate-recognition component of a Cul7-RING ubiquitin-protein ligase complex, which mediates the ubiquitination and subsequent proteasomal degradation of target proteins, such as GORASP1, IRS1, MAP4K1/HPK1. 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 1844084097 358 DHPLPRAAWLRVFQHLGPRELCICMRVCRTWSRWCYDKRLWPRM 401
Cdd:cd22134     4 DIQLPRELALKIFQYLSVTDLCRCAQVSKSWKSLAEDELLWYRI 47

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 1844084097 361 LPRAAWLRVFQHLGPRELCICMRVCRTWSRWCYDKRLWPRM 401
Cdd:cd22132     4 LPDSLLLHIFSYLSPKDLLAAGQVCKQWYRVSRDEFLWKEL 44

F-box domain found in F-box only protein 13 (FBXO13) and similar proteins; FBXO13, also called FBX13, F-box/LRR-repeat protein 17 (FBL17), or F-box and leucine-rich repeat protein 17 (FBXL17), is the substrate-recognition component of SCF(FBXL17) E3 ubiquitin ligase complex, a key component of a quality control pathway required to ensure functional dimerization of BTB domain-containing proteins (dimerization quality control, DQC). 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 1844084097 361 LPRAAWLRVFQHLGPRELCICM-RVCRTWSRWCYDKRLWPRMDLS 404
Cdd:cd22092     5 LPDSILLKIFSYLSLQERCLSAsLVCKYWRDLCLDSQFWKQIDLS 49

F-box domain found in uncharacterized F-box protein group similar to F-box only protein 13 (FBXO13); The family corresponds to a group of uncharacterized F-box proteins which show sequence similarity to F-box only protein 13 (FBXO13). FBXO13, also called FBX13, or F-box/LRR-repeat protein 17 (FBL17), or F-box and leucine-rich repeat protein 17 (FBXL17), is the substrate-recognition component of the SCF(FBXL17) E3 ubiquitin ligase complex, a key component of a quality control pathway required to ensure functional dimerization of BTB domain-containing proteins (dimerization quality control, DQC). 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 1844084097 361 LPRAAWLRVFQHLGPRELCICMRVCRTWSRWCYDKRLWPRMD 402
Cdd:cd22138     4 LPVECQLKIFSFLSEVDKCLAATVCRSWSELIRSPRLWRTVD 45

Antagonist of mitotic exit network protein 1; Amn1 has been functionally characterized in Saccharomyces cerevisiae as a component of the Antagonist of MEN pathway (AMEN). The AMEN network is activated by MEN (mitotic exit network) via an active Cdc14, and in turn switches off MEN. Amn1 constitutes one of the alternative mechanisms by which MEN may be disrupted. Specifically, Amn1 binds Tem1 (Termination of M-phase, a GTPase that belongs to the RAS superfamily), and disrupts its association with Cdc15, the primary downstream target. Amn1 is a leucine-rich repeat (LRR) protein, with 12 repeats in the S. cerevisiae ortholog. As a negative regulator of the signal transduction pathway MEN, overexpression of AMN1 slows the growth of wild type cells. The function of the vertebrate members of this family has not been determined experimentally, they have fewer LRRs that determine the extent of this model.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1844084097 521 LTDASLRLLLRHAP-QLSALDLSHCAhVGDPSVHLLTAPTSplretLVHLNLAGCHRLTDHCL-PLFRRCPRLRRLDLRS 598
Cdd:cd09293    14 ITQSNISQLLRILHsGLEWLELYMCP-ISDPPLDQLSNCNK-----LKKLILPGSKLIDDEGLiALAQSCPNLQVLDLRA 87

                  ....*
gi 1844084097 599 CRQLS 603
Cdd:cd09293    88 CENIT 92

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
                  ....*....|....*....|....*....|....*...
gi 1844084097 361 LPRAAWLRVFQHLGPRELCICMRVCRTWSRWCYDKRLW 398
Cdd:cd22172     9 LPRVLSLYIFSFLDPRSLCRCAQVCWYWKYLTELDQLW 46

Leucine Rich repeats (2 copies); Leucine rich repeats are short sequence motifs present in a number of proteins with diverse functions and cellular locations. These repeats are usually involved in protein-protein interactions. Each Leucine Rich Repeat is composed of a beta-alpha unit. These units form elongated non-globular structures. Leucine Rich Repeats are often flanked by cysteine rich domains.

                          10        20        30
                  ....*....|....*....|....*....|....*...
gi 1844084097 566 LVHLNLAGChRLTDhcLPLFRRCPRLRRLDLRSCRQLS 603
Cdd:pfam12799   3 LEVLDLSNN-QITD--IPPLAKLPNLETLDLSGNNKIT 37

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
                  ....*....|....*....|....*....|....*...
gi 1844084097 361 LPRAAWLRVFQHLGPRELCICMRVCRTWSRWCYDKRLW 398
Cdd:cd22094     6 LPRFLSLYIFSYLDPRSLCRAAQVSWYWKFLCESDELW 43