B-Box C-terminal domain; Coiled coil region C-terminal to (some) B-Box domains

                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 767966951    253 QRMLLEGVTTQVAHKKSSLQTSAKQIEDRIFEVKHQHRKVENQIKMAKMVLMNELNKQANGLIEELEGITNERKRKLEQQ 332
Cdd:smart00502    1 QREALEELLTKLRKKAAELEDALKQLISIIQEVEENAADVEAQIKAAFDELRNALNKRKKQLLEDLEEQKENKLKVLEQQ 80

                            90       100       110       120
                    ....*....|....*....|....*....|....*....|....*.
gi 767966951    333 LQSIMVLNRQFEHVQNFINWAVCSKTSVPFLFSKELIVFQMQRLLE 378
Cdd:smart00502   81 LESLTQKQEKLSHAINFTEEALNSGDPTELLLSKKLIIERLQNLLK 126

B-box-type 1 zinc finger found in tripartite motif-containing protein 66 (TRIM66) and similar proteins; TRIM66, also termed transcriptional intermediary factor 1 delta (TIF1delta), is a novel heterochromatin protein 1 (HP1)-interacting member of the transcriptional intermediary factor 1 (TIF1) family, and is expressed by elongating spermatids. Like other TIF1 proteins, TRIM66 displays a potent trichostatin A (TSA)-sensitive repression function; TSA is a specific inhibitor of histone deacetylases. Moreover, TRIM66 plays an important role in heterochromatin-mediated gene silencing during postmeiotic phases of spermatogenesis. It functions as a negative regulator of postmeiotic genes acting through HP1 isotype gamma (HP1gamma) complex formation and centromere association. TRIM66 belongs to an unclassified TRIM (tripartite motif) family of proteins that do not have RING fingers and thus lack the characteristic tripartite (RING (R), B-box, and coiled coil (CC)) RBCC motif. The type 1 B-box (Bbox1) zinc finger is characterized by a C6H2 zinc-binding consensus motif.

                          10        20        30
                  ....*....|....*....|....*....|....*..
gi 767966951  149 NCSECKEKRAAHILCTYCNRWLCSSCTEEHRHSPVPG 185
Cdd:cd19811     1 SCSECKEKRPAHSLCTTCNKWLCSSCTEEHRHGKSTS 37

B-Box C-terminal domain; Coiled coil region C-terminal to (some) B-Box domains

                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 767966951    253 QRMLLEGVTTQVAHKKSSLQTSAKQIEDRIFEVKHQHRKVENQIKMAKMVLMNELNKQANGLIEELEGITNERKRKLEQQ 332
Cdd:smart00502    1 QREALEELLTKLRKKAAELEDALKQLISIIQEVEENAADVEAQIKAAFDELRNALNKRKKQLLEDLEEQKENKLKVLEQQ 80

                            90       100       110       120
                    ....*....|....*....|....*....|....*....|....*.
gi 767966951    333 LQSIMVLNRQFEHVQNFINWAVCSKTSVPFLFSKELIVFQMQRLLE 378
Cdd:smart00502   81 LESLTQKQEKLSHAINFTEEALNSGDPTELLLSKKLIIERLQNLLK 126

B-box-type 1 zinc finger found in tripartite motif-containing protein 66 (TRIM66) and similar proteins; TRIM66, also termed transcriptional intermediary factor 1 delta (TIF1delta), is a novel heterochromatin protein 1 (HP1)-interacting member of the transcriptional intermediary factor 1 (TIF1) family, and is expressed by elongating spermatids. Like other TIF1 proteins, TRIM66 displays a potent trichostatin A (TSA)-sensitive repression function; TSA is a specific inhibitor of histone deacetylases. Moreover, TRIM66 plays an important role in heterochromatin-mediated gene silencing during postmeiotic phases of spermatogenesis. It functions as a negative regulator of postmeiotic genes acting through HP1 isotype gamma (HP1gamma) complex formation and centromere association. TRIM66 belongs to an unclassified TRIM (tripartite motif) family of proteins that do not have RING fingers and thus lack the characteristic tripartite (RING (R), B-box, and coiled coil (CC)) RBCC motif. The type 1 B-box (Bbox1) zinc finger is characterized by a C6H2 zinc-binding consensus motif.

                          10        20        30
                  ....*....|....*....|....*....|....*..
gi 767966951  149 NCSECKEKRAAHILCTYCNRWLCSSCTEEHRHSPVPG 185
Cdd:cd19811     1 SCSECKEKRPAHSLCTTCNKWLCSSCTEEHRHGKSTS 37

B-box zinc finger;

                           10        20        30
                   ....*....|....*....|....*....|....*.
gi 767966951   209 YCPLHTQEVLKLFCETCDMLTCHSCLVVEHKEHRCR 244
Cdd:pfam00643    5 LCPEHEEEPLTLYCNDCQELLCEECSVGEHRGHTVV 40

helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of Mycoplasma species. Members average 750 amino acids in length, including signal peptide. Sequences are predicted (Jpred 3) to be almost entirely alpha-helical. These sequences show strong periodicity (consistent with long alpha helical structures) and low complexity rich in D,E,N,Q, and K. Genes encoding these proteins are often found in tandem. The function is unknown.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 767966951   250 LQNQRMLLEGVTTQVAHKKSSLQTSAKQIEDRIFEVKHQHRKV---ENQIKMAKMVLmNELNKQ-ANGLIEELEGITNER 325
Cdd:TIGR04523  241 INEKTTEISNTQTQLNQLKDEQNKIKKQLSEKQKELEQNNKKIkelEKQLNQLKSEI-SDLNNQkEQDWNKELKSELKNQ 319

                           90       100       110
                   ....*....|....*....|....*....|...
gi 767966951   326 KRKLEQ---QL----QSIMVLNRQFEHVQNFIN 351
Cdd:TIGR04523  320 EKKLEEiqnQIsqnnKIISQLNEQISQLKKELT 352

B-Box C-terminal domain; Coiled coil region C-terminal to (some) B-Box domains

                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 767966951    253 QRMLLEGVTTQVAHKKSSLQTSAKQIEDRIFEVKHQHRKVENQIKMAKMVLMNELNKQANGLIEELEGITNERKRKLEQQ 332
Cdd:smart00502    1 QREALEELLTKLRKKAAELEDALKQLISIIQEVEENAADVEAQIKAAFDELRNALNKRKKQLLEDLEEQKENKLKVLEQQ 80

                            90       100       110       120
                    ....*....|....*....|....*....|....*....|....*.
gi 767966951    333 LQSIMVLNRQFEHVQNFINWAVCSKTSVPFLFSKELIVFQMQRLLE 378
Cdd:smart00502   81 LESLTQKQEKLSHAINFTEEALNSGDPTELLLSKKLIIERLQNLLK 126

B-box-type 1 zinc finger found in tripartite motif-containing protein 66 (TRIM66) and similar proteins; TRIM66, also termed transcriptional intermediary factor 1 delta (TIF1delta), is a novel heterochromatin protein 1 (HP1)-interacting member of the transcriptional intermediary factor 1 (TIF1) family, and is expressed by elongating spermatids. Like other TIF1 proteins, TRIM66 displays a potent trichostatin A (TSA)-sensitive repression function; TSA is a specific inhibitor of histone deacetylases. Moreover, TRIM66 plays an important role in heterochromatin-mediated gene silencing during postmeiotic phases of spermatogenesis. It functions as a negative regulator of postmeiotic genes acting through HP1 isotype gamma (HP1gamma) complex formation and centromere association. TRIM66 belongs to an unclassified TRIM (tripartite motif) family of proteins that do not have RING fingers and thus lack the characteristic tripartite (RING (R), B-box, and coiled coil (CC)) RBCC motif. The type 1 B-box (Bbox1) zinc finger is characterized by a C6H2 zinc-binding consensus motif.

                          10        20        30
                  ....*....|....*....|....*....|....*..
gi 767966951  149 NCSECKEKRAAHILCTYCNRWLCSSCTEEHRHSPVPG 185
Cdd:cd19811     1 SCSECKEKRPAHSLCTTCNKWLCSSCTEEHRHGKSTS 37

B-box-type 2 zinc finger found in transcription intermediary factor 1-alpha (TIF1-alpha); TIF1-alpha, also known as tripartite motif-containing protein 24 (TRIM24), E3 ubiquitin-protein ligase TRIM24, or RING finger protein 82, belongs to the C-VI subclass of TRIM (tripartite motif) family of proteins that are defined by their N-terminal RBCC (RING, Bbox, and coiled coil) domains, including three consecutive zinc-binding domains, a RING finger, Bbox1 and Bbox2, and a coiled coil region, as well as a plant homeodomain (PHD), and a bromodomain (Bromo) positioned C-terminal to the RBCC domain. The type 2 B-box (Bbox2) zinc finger is characterized by a CHC3H2 zinc-binding consensus motif. TIF1-alpha interacts specifically and in a ligand-dependent manner with the ligand binding domain (LBD) of several nuclear receptors (NRs), including retinoid X (RXR), retinoic acid (RAR), vitamin D3 (VDR), estrogen (ER), and progesterone (PR) receptors. It also associates with heterochromatin-associated factors HP1alpha, MOD1 (HP1beta), and MOD2 (HP1gamma), as well as the vertebrate Kruppel-type (C2H2) zinc finger proteins that contain the transcriptional silencing domain KRAB. TIF1-alpha is a ligand-dependent co-repressor of retinoic acid receptor (RAR) that interacts with multiple nuclear receptors in vitro via an LXXLL motif and further acts as a gatekeeper of liver carcinogenesis. It also functions as an E3-ubiquitin ligase targeting p53, and is broadly associated with chromatin silencing. Moreover, it is a chromatin regulator that recognizes specific, combinatorial histone modifications through its C-terminal PHD-Bromo region. In addition, it interacts with chromatin and estrogen receptor to activate estrogen-dependent genes associated with cellular proliferation and tumor development.

                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 767966951  208 LYCPLHTQEVLKLFCETCDMLTCHSCLVVEHKEHRCRHVEEVLQNQRMLLE 258
Cdd:cd19828     4 VFCPFHKKEQLKLYCETCDKLTCRDCQLLEHKEHRYQFIEEAFQNQKVIID 54

B-box-type 2 zinc finger found in transcription intermediary factor 1-beta (TIF1-beta); TIF1-beta, also known as Kruppel-associated Box (KRAB)-associated protein 1 (KAP-1), KRAB-interacting protein 1 (KRIP-1), nuclear co-repressor KAP-1, RING finger protein 96, tripartite motif-containing protein 28 (TRIM28), or E3 SUMO-protein ligase TRIM28, belongs to the C-VI subclass of TRIM (tripartite motif) family of proteins that are defined by their N-terminal RBCC (RING, Bbox, and coiled coil) domains, including three consecutive zinc-binding domains, a RING finger, Bbox1 and Bbox2, and a coiled coil region, as well as a plant homeodomain (PHD) and a bromodomain (Bromo) positioned C-terminal to the RBCC domain. The type 2 B-box (Bbox2) zinc finger is characterized by a CHC3H2 zinc-binding consensus motif. TIF1-beta acts as a nuclear co-repressor that plays a role in transcription and in the DNA damage response. Upon DNA damage, the phosphorylation of KAP-1 on serine 824 by the ataxia telangiectasia-mutated (ATM) kinase enhances cell survival and facilitates chromatin relaxation and heterochromatic DNA repair. It also regulates CHD3 nucleosome remodeling during the DNA double-strand break (DSB) response. Meanwhile, KAP-1 can be dephosphorylated by protein phosphatase PP4C in the DNA damage response. Moreover, KAP-1 is a co-activator of the orphan nuclear receptor NGFI-B (or Nur77) and is involved in NGFI-B-dependent transcription. It is also a coiled-coil binding partner, substrate and activator of the c-Fes protein tyrosine kinase. The N-terminal RBCC domains of TIF1-beta are responsible for the interaction with KRAB zinc finger proteins (KRAB-ZFPs), MDM2, MM1, C/EBPbeta, and the regulation of homo- and heterodimerization. The C-terminal PHD/Bromo domains are involved in interacting with SETDB1, Mi-2alpha and other proteins to form complexes with histone deacetylase or methyltransferase activity.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|..
gi 767966951  207 TLYCPLHTQEVLKLFCETCDMLTCHSCLVVEHKEHRCRHVEE 248
Cdd:cd19829     1 TVYCSIHKQEPLKLFCETCDTLTCRDCQLNAHKDHQYQFLED 42

B-box-type 2 zinc finger found in Drosophila melanogaster brain tumor protein (BRAT) and similar proteins; BRAT is a NHL-domain family protein that functions as a translational repressor to inhibit cell proliferation. This family also contains Caenorhabditis elegans B-box type zinc finger protein ncl-1, a C. elegans Brat homolog which functions as a translational repressor that inhibits protein synthesis. BRAT contains Bbox1 and Bbox2 zinc fingers and NHL repeats. The type 2 B-box (Bbox2) zinc finger is characterized by a CHC3H2 zinc-binding consensus motif.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|.
gi 767966951  208 LYCPLHTQEVLKLFCETCDMLTCHSCLVVEHK--EHRCRHV 246
Cdd:cd19798     4 VFCPKHPNEVLKFFCKTCNIPICKDCTLLDHNkgLHDYEYL 44

B-Box-type zinc finger;

                            10        20        30
                    ....*....|....*....|....*....|....*
gi 767966951    208 LYCPLHTQEVLKLFCETCDMLTCHSCLVVEHKEHR 242
Cdd:smart00336    4 PKCDSHGDEPAEFFCEECGALLCRTCDEAEHRGHT 38

B-box-type 2 zinc finger found in tripartite motif-containing protein 71 (TRIM71) and similar proteins; TRIM71, also known as protein lineage variant 41 (lin-41), is an E3 ubiquitin-protein ligase that may play essential roles in embryonic stem cells, cellular reprogramming, and the timing of embryonic neurogenesis. It was first identified in the nematode Caenorhabditis elegans as a target of the differentiation-associated microRNA (miRNA) let-7 (lethal 7), and therefore part of a heterochronic gene network that controls larval development. In humans, it regulates let-7 microRNA biogenesis via modulation of Lin28B protein polyubiquitination. TRIM71 localizes to cytoplasmic P-bodies and directly interacts with the miRNA pathway proteins Argonaute 2 (AGO2) and DICER. It represses miRNA activity by promoting degradative ubiquitination of AGO2. Moreover, TRIM71 associates with SHCBP1, a novel component of the fibroblast growth factor (FGF) signaling pathway, and regulates its non-degradative polyubiquitination. It is also involved in the post-transcriptional regulation of the CDKN1A, RBL1 and RBL2 or EGR1 mRNAs through mediating RNA-binding in embryonic stem cells. TRIM71 belongs to the C-VII subclass of TRIM (tripartite motif)-NHL family that is defined by their N-terminal RBCC (RING, Bbox, and coiled coil) domains, including three consecutive zinc-binding domains, a RING finger, Bbox1 and Bbox2, and a coiled coil domain, as well as a NHL (named after proteins NCL-1, HT2A and Lin-41 that contain repeats folded into a six-bladed beta propeller) repeat domain positioned C-terminal to the RBCC domain. The type 2 B-box (Bbox2) zinc finger is characterized by a CHC3H2 zinc-binding consensus motif.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*.
gi 767966951  209 YCPLHTQEVLKLFCETCDMLTCHSCLVVEHKEHRCRHVEEVLQNQR 254
Cdd:cd19796     3 YCEIHEHEVLRLYCDTCSVPICRECTMGEHRGHSFIYLQEAVQDSK 48

B-box-type 2 zinc finger found in tripartite motif-containing protein TRIM2, TRIM3, and similar proteins; TRIM2, also known as RING finger protein 86 (RNF86), is an E3 ubiquitin-protein ligase that ubiquitinates the neurofilament light chain, a component of the intermediate filament in axons. Loss of function of TRIM2 results in early-onset axonal neuropathy. TRIM3, also known as brain-expressed RING finger protein (BERP), RING finger protein 97 (RNF97), or RING finger protein 22 (RNF22), is an E3 ubiquitin-protein ligase involved in the pathogenesis of various cancers. It also plays an important role in the central nervous system (CNS). In addition, TRIM3 may be involved in vesicular trafficking via its association with the cytoskeleton-associated-recycling or transport (CART) complex that is necessary for efficient transferrin receptor recycling, but not for epidermal growth factor receptor (EGFR) degradation. Both TRIM2 and TRIM3 belong to the C-VII subclass of TRIM (tripartite motif)-NHL family that is defined by their N-terminal RBCC (RING, Bbox, and coiled coil) domains, including three consecutive zinc-binding domains, a RING finger, Bbox2, and a coiled coil domain, as well as a NHL (named after proteins NCL-1, HT2A and Lin-41 that contain repeats folded into a six-bladed beta propeller) repeat domain positioned C-terminal to the RBCC domain. The type 2 B-box (Bbox2) zinc finger is characterized by a CHC3H2 zinc-binding consensus motif.

                          10        20        30
                  ....*....|....*....|....*....|....*.
gi 767966951  207 TLYCPLHTQEVLKLFCETCDMLTCHSCLVVEHKEHR 242
Cdd:cd19759     1 PLVCPNHDGETLEFYCESCETAVCRECTAGEHNEHR 36

B-box-type 2 zinc finger found in tripartite motif-containing protein 3 (TRIM3); TRIM3, also known as brain-expressed RING finger protein (BERP), RING finger protein 97 (RNF97), or RING finger protein 22 (RNF22), is an E3 ubiquitin-protein ligase involved in the pathogenesis of various cancers. It functions as a tumor suppressor that regulates asymmetric cell division in neuroblastoma. It binds to the ck inhibitor p21(WAF1/CIP1) and regulates its availability that promotes cyclins D1-cdk4 nuclear accumulation. Moreover, TRIM3 plays an important role in the central nervous system (CNS). It corresponds to gene BERP (brain-expressed RING finger protein), a unique p53-regulated gene that modulates seizure susceptibility and GABAAR cell surface expression. Furthermore, TRIM3 mediates activity-dependent turnover of presynaptic density (PSD) scaffold proteins GKAP/SAPAP1 and is a negative regulator of dendrite spine morphology. In addition, TRIM3 may be involved in vesicular trafficking via its association with the cytoskeleton-associated-recycling or transport (CART) complex that is necessary for efficient transferrin receptor recycling, but not for epidermal growth factor receptor (EGFR) degradation. It also regulates the motility of the kinesin superfamily protein KIF21B. TRIM3 belongs to the C-VII subclass of TRIM (tripartite motif)-NHL family that is defined by their N-terminal RBCC (RING, Bbox, and coiled coil) domains, including three consecutive zinc-binding domains, a RING finger, Bbox2, and a coiled coil domain, as well as a NHL (named after proteins NCL-1, HT2A and Lin-41 that contain repeats folded into a six-bladed beta propeller) repeat domain positioned C-terminal to the RBCC domain. The type 2 B-box (Bbox2) zinc finger is characterized by a CHC3H2 zinc-binding consensus motif.

                          10        20        30
                  ....*....|....*....|....*....|....
gi 767966951  208 LYCPLHTQEVLKLFCETCDMLTCHSCLVVEHKEH 241
Cdd:cd19825     7 LSCPNHEGKTMEFYCESCETAMCRECTEGEHREH 40

B-box-type 2 zinc finger found in tripartite motif-containing protein 2 (TRIM2) and similar proteins; TRIM2, also known as RING finger protein 86 (RNF86), is an E3 ubiquitin-protein ligase that ubiquitinates the neurofilament light chain, a component of the intermediate filament in axons. Loss of function of TRIM2 results in early-onset axonal neuropathy. TRIM2 also plays a role in mediating the p42/p44 Semi-independent ubiquitination of the cell death-promoting protein Bcl-2-interacting mediator of cell death (Aim) in rapid ischemic tolerance. TRIM2 belongs to the C-VII subclass of TRIM (tripartite motif)-NHL family that is defined by their N-terminal RBCC (RING, Bbox, and coiled coil) domains, including three consecutive zinc-binding domains, a RING finger, Bbox2, and a coiled coil domain, as well as a NHL (named after proteins NCL-1, HT2A and Lin-41 that contain repeats folded into a six-bladed beta propeller) repeat domain positioned C-terminal to the RBCC domain. The type 2 B-box (Bbox2) zinc finger is characterized by a CHC3H2 zinc-binding consensus motif.

                          10        20        30
                  ....*....|....*....|....*....|....
gi 767966951  208 LYCPLHTQEVLKLFCETCDMLTCHSCLVVEHKEH 241
Cdd:cd19824     2 LSCPNHDGNVMEFYCQSCETAMCQECTEGEHAEH 35

B-box-type 2 zinc finger found in Ras guanine nucleotide exchange factor O (GefO) and similar proteins; Ras guanine-nucleotide exchange factors (RasGEFs) activate Ras by catalyzing the replacement of GDP with GTP, and thus lie near the top of many signaling pathways. They are important for signaling in development and chemotaxis in many organisms. Ras guanine nucleotide exchange factor O (GefO), also known as RasGEF domain-containing protein O, is faintly expressed during development of Dictyostelium discoideum. It contains a C3HC4-type RING finger, a B-box motif that shows high sequence similarity with B-Box-type zinc finger 2 found in tripartite motif-containing proteins (TRIMs), a REM (Ras exchanger motif) domain, and a # RasGEF domain. The type 2 B-box (Bbox2) zinc finger is characterized by a CHC3H2 zinc-binding consensus motif.

                          10        20        30
                  ....*....|....*....|....*....|....*
gi 767966951  209 YCPLHTQEVLKLFCETCDMLTCHSCLVVEHKEHRC 243
Cdd:cd20207     2 VCSKHNEHMLDKFCKDCSAPVCENCVLTTHAGHNV 36

B-box-type 1 zinc finger found in transcription intermediary factor 1-beta (TIF1-beta); TIF1-beta, also known as Kruppel-associated Box (KRAB)-associated protein 1 (KAP-1), KRAB-interacting protein 1 (KRIP-1), nuclear co-repressor KAP-1, RING finger protein 96, tripartite motif-containing protein 28 (TRIM28), or E3 SUMO-protein ligase TRIM28, belongs to the C-VI subclass of TRIM (tripartite motif) family of proteins that are defined by their N-terminal RBCC (RING, Bbox, and coiled coil) domains, including three consecutive zinc-binding domains, a RING finger, Bbox1 and Bbox2, and a coiled coil region, as well as a plant homeodomain (PHD), and a bromodomain (Bromo) positioned C-terminal to the RBCC domain. The type 1 B-box (Bbox1) zinc finger is characterized by a C6H2 zinc-binding consensus motif. TIF1-beta/KAP-1 acts as a nuclear co-repressor that plays a role in transcription and in the DNA damage response. Upon DNA damage, the phosphorylation of KAP-1 on serine 824 by the ataxia telangiectasia-mutated (ATM) kinase enhances cell survival and facilitates chromatin relaxation and heterochromatic DNA repair. It also regulates CHD3 nucleosome remodeling during the DNA double-strand break (DSB) response. Meanwhile, KAP-1 can be dephosphorylated by protein phosphatase PP4C in the DNA damage response. Moreover, KAP-1 is a co-activator of the orphan nuclear receptor NGFI-B (or Nur77) and is involved in NGFI-B-dependent transcription. It is also a coiled-coil binding partner, substrate and activator of the c-Fes protein tyrosine kinase. The N-terminal RBCC domains of TIF1-beta are responsible for the interaction with KRAB zinc finger proteins (KRAB-ZFPs), MDM2, MM1, C/EBPbeta, and the regulation of homo- and heterodimerization. The C-terminal PHD/Bromo domains are involved in interacting with SETDB1, Mi-2alpha and other proteins to form complexes with histone deacetylase or methyltransferase activity.

                          10        20        30
                  ....*....|....*....|....*....|
gi 767966951  150 CSECKEKRAAHILCTYCNRWLCSSCTEEHR 179
Cdd:cd19846     6 CTSCEDNAPATSYCVECSEPLCETCVEAHQ 35