plant U-box 22 [Arabidopsis thaliana]
Protein Classification
U-box domain-containing protein( domain architecture ID 10649642)
U-box domain-containing protein contains a modified RING finger and functions as an E3 ubiquitin ligase that mediates the ubiquitination of target proteins by bringing the ubiquitin-charged E2 ubiquitin-conjugating enzyme and the acceptor protein together to enable the direct transfer of ubiquitin
List of domain hits
| Name | Accession | Description | Interval | E-value | ||
| Ubox | smart00504 | Modified RING finger domain; Modified RING finger domain, without the full complement of Zn2 ... |
11-74 | 3.48e-27 | ||
Modified RING finger domain; Modified RING finger domain, without the full complement of Zn2+-binding ligands. Probable involvement in E2-dependent ubiquitination. : Pssm-ID: 128780 [Multi-domain] Cd Length: 63 Bit Score: 103.08 E-value: 3.48e-27
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| Name | Accession | Description | Interval | E-value | ||
| Ubox | smart00504 | Modified RING finger domain; Modified RING finger domain, without the full complement of Zn2 ... |
11-74 | 3.48e-27 | ||
Modified RING finger domain; Modified RING finger domain, without the full complement of Zn2+-binding ligands. Probable involvement in E2-dependent ubiquitination. Pssm-ID: 128780 [Multi-domain] Cd Length: 63 Bit Score: 103.08 E-value: 3.48e-27
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| RING-Ubox_PUB | cd16664 | U-box domain, a modified RING finger, found in Arabidopsis plant U-box proteins (AtPUB) and ... |
8-61 | 1.51e-26 | ||
U-box domain, a modified RING finger, found in Arabidopsis plant U-box proteins (AtPUB) and similar proteins; The plant PUB proteins, also known as U-box domain-containing proteins, are much more numerous in Arabidopsis which has 62 in comparison with the typical 6 in most animals. The majority of AtPUBs in this subfamily are known as ARM domain-containing PUB proteins, containing a C-terminally-located, tandem ARM (armadillo) repeat protein-interaction region in addition to the U-box domain. They have been implicated in the regulation of cell death and defense. They also play important roles in other plant-specific pathways, such as controlling both self-incompatibility and pseudo-self-incompatibility, as well as acting in abiotic stress. A subgroup of ARM domain-containing PUB proteins harbors a plant-specific U-box N-terminal domain. Pssm-ID: 438326 [Multi-domain] Cd Length: 53 Bit Score: 101.10 E-value: 1.51e-26
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| U-box | pfam04564 | U-box domain; The U-box is a domain of ~70 amino acids that is present in proteins from yeast ... |
7-74 | 2.22e-22 | ||
U-box domain; The U-box is a domain of ~70 amino acids that is present in proteins from yeast to human. It consists of the beta-beta-alpha-beta-alpha- fold typical of U-box and RING domains. The central alpha helix is flanked by two prominent surface-exposed loop regions. This domain is one class of E3 ligases, involved in the ubiquitination process. This domain is related to the Ring finger pfam00097 but lacks the zinc binding residues. Pssm-ID: 398320 [Multi-domain] Cd Length: 73 Bit Score: 90.06 E-value: 2.22e-22
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| UFD2 | COG5113 | Ubiquitin fusion degradation protein 2 [Posttranslational modification, protein turnover, ... |
6-71 | 4.80e-07 | ||
Ubiquitin fusion degradation protein 2 [Posttranslational modification, protein turnover, chaperones]; Pssm-ID: 227444 [Multi-domain] Cd Length: 929 Bit Score: 52.29 E-value: 4.80e-07
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| Name | Accession | Description | Interval | E-value | ||
| Ubox | smart00504 | Modified RING finger domain; Modified RING finger domain, without the full complement of Zn2 ... |
11-74 | 3.48e-27 | ||
Modified RING finger domain; Modified RING finger domain, without the full complement of Zn2+-binding ligands. Probable involvement in E2-dependent ubiquitination. Pssm-ID: 128780 [Multi-domain] Cd Length: 63 Bit Score: 103.08 E-value: 3.48e-27
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| RING-Ubox_PUB | cd16664 | U-box domain, a modified RING finger, found in Arabidopsis plant U-box proteins (AtPUB) and ... |
8-61 | 1.51e-26 | ||
U-box domain, a modified RING finger, found in Arabidopsis plant U-box proteins (AtPUB) and similar proteins; The plant PUB proteins, also known as U-box domain-containing proteins, are much more numerous in Arabidopsis which has 62 in comparison with the typical 6 in most animals. The majority of AtPUBs in this subfamily are known as ARM domain-containing PUB proteins, containing a C-terminally-located, tandem ARM (armadillo) repeat protein-interaction region in addition to the U-box domain. They have been implicated in the regulation of cell death and defense. They also play important roles in other plant-specific pathways, such as controlling both self-incompatibility and pseudo-self-incompatibility, as well as acting in abiotic stress. A subgroup of ARM domain-containing PUB proteins harbors a plant-specific U-box N-terminal domain. Pssm-ID: 438326 [Multi-domain] Cd Length: 53 Bit Score: 101.10 E-value: 1.51e-26
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| U-box | pfam04564 | U-box domain; The U-box is a domain of ~70 amino acids that is present in proteins from yeast ... |
7-74 | 2.22e-22 | ||
U-box domain; The U-box is a domain of ~70 amino acids that is present in proteins from yeast to human. It consists of the beta-beta-alpha-beta-alpha- fold typical of U-box and RING domains. The central alpha helix is flanked by two prominent surface-exposed loop regions. This domain is one class of E3 ligases, involved in the ubiquitination process. This domain is related to the Ring finger pfam00097 but lacks the zinc binding residues. Pssm-ID: 398320 [Multi-domain] Cd Length: 73 Bit Score: 90.06 E-value: 2.22e-22
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| RING-Ubox_WDSUB1-like | cd16655 | U-box domain, a modified RING finger, found in WD repeat, SAM and U-box domain-containing ... |
8-64 | 3.90e-21 | ||
U-box domain, a modified RING finger, found in WD repeat, SAM and U-box domain-containing protein 1 (WDSUB1) and similar proteins; WDSUB1 is an uncharacterized protein containing seven WD40 repeats and a SAM domain in addition to the U-box. Its biological role remains unclear. This subfamily also includes many uncharacterized kinase domain-containing U-box (AtPUB) proteins and several MIF4G motif-containing AtPUB proteins from Arabidopsis. Pssm-ID: 438317 [Multi-domain] Cd Length: 55 Bit Score: 86.02 E-value: 3.90e-21
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| RING-Ubox_CHIP | cd16654 | U-box domain, a modified RING finger, found in carboxyl terminus of HSP70-interacting protein ... |
7-78 | 8.69e-20 | ||
U-box domain, a modified RING finger, found in carboxyl terminus of HSP70-interacting protein (CHIP) and similar proteins; CHIP, also known as STIP1 homology and U box-containing protein 1 (STUB1), CLL-associated antigen KW-8, or Antigen NY-CO-7, is a multifunctional protein that functions both as a co-chaperone and an E3 ubiquitin-protein ligase. It couples protein folding and proteasome mediated degradation by interacting with heat shock proteins (e.g. HSC70) and ubiquitinating their misfolded client proteins, thereby targeting them for proteasomal degradation. It is also important for cellular differentiation and survival (or apoptosis), as well as susceptibility to stress. It targets a wide range of proteins, such as expanded ataxin-1, ataxin-3, huntingtin, and androgen receptor, which play roles in glucocorticoid response, tau degradation, and both p53 and cAMP signaling. CHIP contains an N-terminal tetratricopeptide repeat (TPR) domain responsible for protein-protein interaction, a highly charged middle coiled-coil (CC), and a C-terminal RING-like U-box domain acting as an ubiquitin ligase. Pssm-ID: 438316 [Multi-domain] Cd Length: 71 Bit Score: 83.01 E-value: 8.69e-20
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| RING-Ubox | cd16453 | U-box domain, a modified RING finger; The U-box protein family is a family of E3 enzymes that ... |
11-56 | 2.58e-16 | ||
U-box domain, a modified RING finger; The U-box protein family is a family of E3 enzymes that also includes the HECT family and the RING finger family. The E3 enzyme is ubiquitin-protein ligase that cooperates with a ubiquitin-activating enzyme (E1) and a ubiquitin-conjugating enzyme (E2), and plays a central role in determining the specificity of the ubiquitination system. It removes the ubiquitin molecule from the E2 enzyme and attaches it to the target substrate, forming a covalent bond between ubiquitin and the target. U-box proteins are characterized by the presence of a U-box domain of approximately 70 amino acids. The U-box is a modified form of the RING finger domain that lacks metal chelating cysteines and histidines. It resembles the cross-brace RING structure consisting of three beta-sheets and a single alpha-helix, which would be stabilized by salt bridges instead of chelated metal ions. U-box proteins are widely distributed among eukaryotic organisms and show a higher prevalence in plants than in other organisms. Pssm-ID: 438117 [Multi-domain] Cd Length: 44 Bit Score: 72.20 E-value: 2.58e-16
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| RING-Ubox_LubX-like_rpt2 | cd23150 | second U-box domain, a modified RING finger, found in Legionella pneumophila U-box protein ... |
8-74 | 4.92e-14 | ||
second U-box domain, a modified RING finger, found in Legionella pneumophila U-box protein LubX and similar proteins; LubX, also called RING-type E3 ubiquitin transferase LubX, is part of the large arsenal of effectors in Legionella pneumophila that are translocated into the host cytosol during infection. LubX acts as an E3 ubiquitin-protein ligase (EC 2.3.2.27) that interferes with the host's ubiquitination pathway. LubX contains two RING-like U-box domains. U-box 1 is critical to the ubiquitin ligase activity, and U-box 2 mediates interaction with host target. This model corresponds to the second one. Pssm-ID: 438512 [Multi-domain] Cd Length: 69 Bit Score: 66.72 E-value: 4.92e-14
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| RING-Ubox_LubX-like_rpt1 | cd23149 | first U-box domain, a modified RING finger, found in Legionella pneumophila U-box protein LubX ... |
11-67 | 3.09e-13 | ||
first U-box domain, a modified RING finger, found in Legionella pneumophila U-box protein LubX and similar proteins; LubX, also called RING-type E3 ubiquitin transferase LubX, is part of the large arsenal of effectors in Legionella pneumophila that are translocated into the host cytosol during infection. LubX acts as an E3 ubiquitin-protein ligase (EC 2.3.2.27) that interferes with the host's ubiquitination pathway. LubX contains two RING-like U-box domains. U-box 1 is critical to the ubiquitin ligase activity, and U-box 2 mediates interaction with host target. This model corresponds to the first one. Pssm-ID: 438511 [Multi-domain] Cd Length: 55 Bit Score: 64.04 E-value: 3.09e-13
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| SPL-RING_NSE2 | cd16651 | SPL-RING finger found in E3 SUMO-protein ligase NSE2 and similar proteins; NSE2, also known as ... |
11-72 | 6.24e-11 | ||
SPL-RING finger found in E3 SUMO-protein ligase NSE2 and similar proteins; NSE2, also known as MMS21 homolog (MMS21) or non-structural maintenance of chromosomes element 2 homolog (Non-SMC element 2 homolog, NSMCE2), is an autosumoylating small ubiquitin-like modifier (SUMO) ligase required for the response to DNA damage. It regulates sumoylation and nuclear-to-cytoplasmic translocation of skeletal and heart muscle-specific variant of the alpha subunit of nascent polypeptide associated complex (skNAC)-Smyd1 in myogenesis. It is also required for resisting extrinsically induced genotoxic stress. Moreover, NSE2 together with its partner proteins SMC6 and SMC5 form a tight subcomplex of the structural maintenance of chromosomes SMC5-6 complex, which includes another two subcomplexes, NSE1-NSE3-NSE4 and NSE5-NSE6. SMC6 and NSE3 are sumoylated in an NSE2-dependent manner, but SMC5 and NSE1 are not. NSE2-dependent E3 SUMO ligase activity is required for efficient DNA repair, but not for SMC5-6 complex stability. NSE2 contains a RING variant known as a Siz/PIAS (protein inhibitor of activated signal transducer and activator of transcription)-like RING (SPL-RING) finger that is likely shared by the SP-RING type SUMO E3 ligases, such as PIAS family proteins. The SPL-RING finger is a variant of the RING finger, which lacks the second, fifth, and sixth zinc-binding residues of the consensus C3H2C3-/C3HC4-type RING fingers. It harbors only one Zn binding site and is required for the sumoylating activity. Pssm-ID: 438313 [Multi-domain] Cd Length: 67 Bit Score: 57.66 E-value: 6.24e-11
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| RING-Ubox_UBE4B | cd16658 | U-box domain, a modified RING finger, found in ubiquitin conjugation factor E4 B (UBE4B) and ... |
6-74 | 6.20e-09 | ||
U-box domain, a modified RING finger, found in ubiquitin conjugation factor E4 B (UBE4B) and similar proteins; UBE4B, also known as UFD2a, is a U-box-type ubiquitin-protein ligase that functions as an E3 ubiquitin ligase and an E4 polyubiquitin chain elongation factor, which catalyzes formation of Lys27- and Lys33-linked polyubiquitin chains rather than the Lys48-linked chain. It is a mammalian homolog of yeast UFD2 ubiquitination factor and it participates in the proteasomal degradation of misfolded or damaged proteins through association with chaperones. It is located in common neuroblastoma deletion regions and may be subject to mutations in tumors. UBE4B has contradictory functions upon tumorigenesis as an oncogene or tumor suppressor in different types of cancers. It is essential for Hdm2 (also known as Mdm2)-mediated p53 degradation. It mediates p53 polyubiquitination and degradation, as well as inhibits p53-dependent transactivation and apoptosis, and thus plays an important role in regulating phosphorylated p53 following DNA damage. UBE4B is also associated with other pathways independent of the p53 family, such as polyglutamine aggregation and Wallerian degeneration, both of which are critical in neurodegenerative diseases. Moreover, UBE4B acts as a regulator of epidermal growth factor receptor (EGFR) degradation. It is recruited to endosomes in response to EGFR activation by binding to Hrs, a key component of endosomal sorting complex required for transport (ESCRT) 0, and then regulates endosomal sorting, affecting cellular levels of the EGFR and its downstream signaling. UBE4B contains a ubiquitin elongating factor core and a RING-like U-box domain at the C-terminus. Pssm-ID: 438320 Cd Length: 74 Bit Score: 52.28 E-value: 6.20e-09
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| RING-Ubox_UBE4A | cd16657 | U-box domain, a modified RING finger, found in ubiquitin conjugation factor E4 A (UBE4A) and ... |
11-74 | 9.40e-08 | ||
U-box domain, a modified RING finger, found in ubiquitin conjugation factor E4 A (UBE4A) and similar proteins; This subfamily includes yeast ubiquitin fusion degradation protein 2 (UFD2p) and its mammalian homolog, UBE4A. Yeast UFD2p, also known as ubiquitin conjugation factor E4 or UB fusion protein 2, is a polyubiquitin chain conjugation factor (E4) in the ubiquitin fusion degradation (UFD) pathway which catalyzes elongation of the ubiquitin chain through Lys48 linkage. It binds to substrates conjugated with one to three ubiquitin molecules and catalyzes the addition of further ubiquitin moieties in the presence of ubiquitin-activating enzyme (E1), ubiquitin-conjugating enzyme (E2) and ubiquitin ligase (E3), yielding multiubiquitylated substrates that are targets for the 26S proteasome. UFD2p is implicated in cell survival under stress conditions and is essential for homoeostasis of unsaturated fatty acids. It interacts with UBL-UBA proteins Rad23 and Dsk2, which are involved in the endoplasmic reticulum-associated degradation, ubiquitin fusion degradation, and OLE-1 gene induction pathways. UBE4A is a U-box-type ubiquitin-protein ligase that is located in common neuroblastoma deletion regions and may be subject to mutations in tumors. It may have a specific role in different biochemical processes other than ubiquitination, including growth or differentiation. Members of this family contain an N-terminal ubiquitin elongating factor core and a RING-like U-box domain at the C-terminus. Pssm-ID: 438319 Cd Length: 70 Bit Score: 48.81 E-value: 9.40e-08
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| UFD2 | COG5113 | Ubiquitin fusion degradation protein 2 [Posttranslational modification, protein turnover, ... |
6-71 | 4.80e-07 | ||
Ubiquitin fusion degradation protein 2 [Posttranslational modification, protein turnover, chaperones]; Pssm-ID: 227444 [Multi-domain] Cd Length: 929 Bit Score: 52.29 E-value: 4.80e-07
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| RING-Ubox_PRP19 | cd16656 | U-box domain, a modified RING finger, found in pre-mRNA-processing factor 19 (Prp19) and ... |
11-63 | 5.44e-05 | ||
U-box domain, a modified RING finger, found in pre-mRNA-processing factor 19 (Prp19) and similar proteins; Prp19, also known as nuclear matrix protein 200 (NMP200), senescence evasion factor (SNEV), or DNA repair protein Pso4 (psoralen-sensitive mutant 4), is a ubiquitously expressed multifunctional E3 ubiquitin ligase with pleiotropic activities in DNA damage signaling, repair, and replicative senescence. It functions as a critical component of DNA repair and DNA damage checkpoint complexes. It senses DNA damage, binds double-stranded DNA in a sequence-independent manner, facilitates processing of damaged DNA, promotes DNA end joining, regulates replication protein A (RPA2) phosphorylation and ubiquitination at damaged DNA, and regulates RNA splicing and mitotic spindle formation in its integral capacity as a scaffold for a multimeric core complex. Prp19 contains an N-terminal E3 ubiquitin ligase U-box domain with E2 recruitment function that facilitates dimerization and is essential for its auto-ubiquitination activity in vitro or when overexpressed, a coiled-coil Prp19 homology region that mediates its tetramerization and interaction with CDC5L and SPF27, and a C-terminal seven-bladed WD40 beta-propeller type of leucine-rich architectural repeats that form an asymmetrical barrel-shaped structure important for substrate recognition and recruitment. Pssm-ID: 438318 Cd Length: 54 Bit Score: 40.62 E-value: 5.44e-05
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| RING-HC_BRCA1 | cd16498 | RING finger, HC subclass, found in breast cancer type 1 susceptibility protein (BRCA1) and ... |
13-71 | 9.93e-05 | ||
RING finger, HC subclass, found in breast cancer type 1 susceptibility protein (BRCA1) and similar proteins; BRCA1, also known as RING finger protein 53 (RNF53), is a RING finger protein encoded by the tumor suppressor gene BRCA1 that regulates all DNA double-strand break (DSB) repair pathways. BRCA1 is frequently mutated in patients with hereditary breast and ovarian cancer (HBOC). Its mutation is also associated with an increased risk of pancreatic, stomach, laryngeal, fallopian tube, and prostate cancer. It plays an important role in the DNA damage response signaling and has been implicated in various cellular processes such as cell cycle regulation, transcriptional regulation, chromatin remodeling, DNA DSBs, and apoptosis. BRCA1 contains an N-terminal C3HC4-type RING-HC finger, and two BRCT (BRCA1 C-terminus domain) repeats at the C-terminus. Pssm-ID: 438161 [Multi-domain] Cd Length: 94 Bit Score: 41.13 E-value: 9.93e-05
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| RING-HC_BAR | cd16497 | RING finger, HC subclass, found in bifunctional apoptosis regulator (BAR); BAR, also known as ... |
11-54 | 1.17e-04 | ||
RING finger, HC subclass, found in bifunctional apoptosis regulator (BAR); BAR, also known as RING finger protein 47, was originally identified as an inhibitor of Bax-induced apoptosis. It participates in the block of apoptosis induced by TNF-family death receptors (extrinsic pathway) and mitochondria-dependent apoptosis (intrinsic pathway). BAR is predominantly expressed by neurons in the central nervous system and is involved in the regulation of neuronal survival. It is an endoplasmic reticulum (ER)-associated RING-type E3 ubiquitin ligase that interacts with BI-1 protein and post-translationally regulates its stability, as well as functioning in ER stress. BAR contains an N-terminal C3HC4-type RING-HC finger, a SAM domain, a coiled-coil domain, and a C-terminal transmembrane (TM) domain. This model corresponds to the RING-HC finger responsible for the binding of ubiquitin conjugating enzymes (E2s). Pssm-ID: 438160 [Multi-domain] Cd Length: 52 Bit Score: 39.80 E-value: 1.17e-04
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| RING-Ubox_RNF37 | cd16660 | U-box domain, a modified RING finger, found in RING finger protein 37 (RNF37); RNF37, also ... |
8-41 | 1.64e-04 | ||
U-box domain, a modified RING finger, found in RING finger protein 37 (RNF37); RNF37, also known as KIAA0860, U-box domain-containing protein 5 (UBOX5), UbcM4-interacting protein 5 (UIP5), or ubiquitin-conjugating enzyme 7-interacting protein 5, is an E3 ubiquitin-protein ligase found exclusively in the nucleus as part of a nuclear dot-like structure. It interacts with the molecular chaperone VCP/p97 protein. RNF37 contains a U-box domain followed by a potential nuclear location signal (NLS), and a C-terminal C3HC4-type RING-HC finger. The U-box domain is a modified RING finger domain that lacks the hallmark metal-chelating cysteines and histidines of the latter, but is likely to adopt a RING finger-like conformation. The presence of the U-box, but not of the RING finger, is required for the E3 activity. The U-box domain can directly interact with several E2 enzymes, including UbcM2, UbcM3, UbcM4, UbcH5, and UbcH8, suggesting a similar function as the RING finger in the ubiquitination pathway. This model corresponds to the U-box domain. Pssm-ID: 438322 Cd Length: 53 Bit Score: 39.22 E-value: 1.64e-04
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| RING-HC_TRIM69_C-IV | cd16611 | RING finger, HC subclass, found in tripartite motif-containing protein 69 (TRIM69) and similar ... |
13-64 | 2.63e-04 | ||
RING finger, HC subclass, found in tripartite motif-containing protein 69 (TRIM69) and similar proteins; TRIM69, also known as RFP-like domain-containing protein trimless or RING finger protein 36 (RNF36), is a testis E3 ubiquitin-protein ligase that plays a specific role in apoptosis and may also play an important role in germ cell homeostasis during spermatogenesis. TRIM69 belongs to the C-IV subclass of the 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 C3HC4-type RING-HC finger, Bbox1 and Bbox2, and a coiled coil region, as well as a B30.2/SPRY (SplA and ryanodine receptor) domain positioned C-terminal to the RBCC domain. Pssm-ID: 438273 [Multi-domain] Cd Length: 59 Bit Score: 38.97 E-value: 2.63e-04
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| zf-Nse | pfam11789 | Zinc-finger of the MIZ type in Nse subunit; Nse1 and Nse2 are novel non-SMC subunits of the ... |
13-51 | 4.15e-04 | ||
Zinc-finger of the MIZ type in Nse subunit; Nse1 and Nse2 are novel non-SMC subunits of the fission yeast Smc5-6 DNA repair complex. This family is the zinc-finger domain similar to the MIZ type of zinc-finger. Pssm-ID: 403098 [Multi-domain] Cd Length: 57 Bit Score: 38.04 E-value: 4.15e-04
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| RING-Ubox1_NOSIP | cd16661 | U-box domain 1, a modified RING finger, found in nitric oxide synthase-interacting protein ... |
10-56 | 5.70e-04 | ||
U-box domain 1, a modified RING finger, found in nitric oxide synthase-interacting protein (NOSIP) and similar proteins; NOSIP, also known as endothelial NO synthase (eNOS)-interacting protein, p33RUL, is an E3 ubiquitin-protein ligase implicated in the control of airway and vascular diameter, mucosal secretion, NO synthesis in ciliated epithelium, and, therefore, of mucociliary and bronchial function. The loss of NOSIP may cause holoprosencephaly and facial anomalies, including cleft lip/palate, cyclopia, and facial midline clefting. NOSIP interacts with neuronal nitric oxide synthase (nNOS) and eNOS by inhibiting the nitric oxide (NO) production. It acts as a novel type of modulator that promotes translocation of eNOS from the plasma membrane to intracellular sites, thereby uncoupling eNOS from plasma membrane caveolae and inhibiting NO synthesis. NOSIP also interacts with protein phosphatase PP2A and mediates the monoubiquitination of the PP2A catalytic subunit. Thus, it is a critical modulator of brain and craniofacial development in mice and a candidate gene for holoprosencephaly in humans. Moreover, NOSIP associates with the erythropoietin (Epo) receptor (EpoR), mediates ubiquitination of EpoR, and plays an essential role in erythropoietin-induced proliferation. NOSIP contains an atypical N-terminal RING-like U-box domain that is split into two parts by an interjacent stretch of 104 amino acid residues, as well as a C-terminal RING-like U-box domain. This model corresponds to the first U-box domain. Pssm-ID: 438323 Cd Length: 46 Bit Score: 37.68 E-value: 5.70e-04
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| RING-HC_ScPSH1-like | cd16568 | RING finger, HC subclass, found in Saccharomyces cerevisiae POB3/SPT16 histone-associated ... |
13-57 | 5.97e-04 | ||
RING finger, HC subclass, found in Saccharomyces cerevisiae POB3/SPT16 histone-associated protein 1 (ScPSH1) and similar proteins; ScPSH1 is a Cse4-specific E3 ubiquitin ligase that interacts with the kinetochore protein Pat1 and targets the degradation of budding yeast centromeric histone H3 variant, CENP-ACse4, which is essential for faithful chromosome segregation. ScPSH1 contains a C3HC4-type RING-HC finger and a DNA directed RNA polymerase domain. Pssm-ID: 438230 [Multi-domain] Cd Length: 54 Bit Score: 37.73 E-value: 5.97e-04
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| SP-RING-like | cd16452 | SP-RING finger and SPL-RING finger, variants of RING fingers; This family corresponds to a ... |
11-51 | 1.01e-03 | ||
SP-RING finger and SPL-RING finger, variants of RING fingers; This family corresponds to a group of proteins with variants of RING fingers that are characterized by lacking the second, fifth, and sixth Zn2+ ion-coordinating residues compared with the classic C3H2C3-/C3HC4-type RING fingers. They include SP-RING finger found in the Siz/PIAS RING (SP-RING) family of SUMO E3 ligases and SPL-RING finger found in E3 SUMO-protein ligase NSE2. The SP-RING family includes PIAS (protein inhibitor of activated STAT) proteins, Zmiz proteins, and Siz proteins from plants and fungi. The PIAS (protein inhibitor of activated STAT) protein family modulates the activity of several transcription factors and acts as an E3 ubiquitin ligase in the sumoylation pathway. NSE2, also known as MMS21 homolog (MMS21) or non-structural maintenance of chromosomes element 2 homolog (Non-SMC element 2 homolog, NSMCE2), is an autosumoylating small ubiquitin-like modifier (SUMO) ligase required for the response to DNA damage. It regulates sumoylation and nuclear-to-cytoplasmic translocation of skeletal and heart muscle-specific variant of the alpha subunit of nascent polypeptide associated complex (skNAC)-Smyd1 in myogenesis. It is also required for resisting extrinsically induced genotoxic stress. Pssm-ID: 438116 [Multi-domain] Cd Length: 45 Bit Score: 36.85 E-value: 1.01e-03
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| RING-HC_TRIM7-like_C-IV | cd16594 | RING finger, HC subclass, found in tripartite motif-containing proteins, TRIM7, TRIM11 and ... |
13-64 | 1.82e-03 | ||
RING finger, HC subclass, found in tripartite motif-containing proteins, TRIM7, TRIM11 and TRIM27, and similar proteins; TRIM7, TRIM11 and TRIM27, closely related tripartite motif-containing proteins, belong to the C-IV subclass of the 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 C3HC4-type RING-HC finger, Bbox2, and a coiled coil region, as well as a SPRY/B30.2 domain positioned C-terminal to the RBCC domain. TRIM7, also known as glycogenin-interacting protein (GNIP) or RING finger protein 90 (RNF90), is an E3 ubiquitin-protein ligase that mediates c-Jun/AP-1 activation by Ras signalling. Its phosphorylation and activation by MSK1 in response to direct activation by the Ras-Raf-MEK-ERK pathway can stimulate TRIM7 E3 ubiquitin ligase activity in mediating Lys63-linked ubiquitination of the AP-1 coactivator RACO-1, leading to RACO-1 protein stabilization. Moreover, TRIM7 binds and activates glycogenin, the self-glucosylating initiator of glycogen biosynthesis. TRIM11, also known as protein BIA1, or RING finger protein 92 (RNF92), is an E3 ubiquitin-protein ligase involved in the development of the central nervous system. It is overexpressed in high-grade gliomas and promotes proliferation, invasion, migration and glial tumor growth. TRIM11 acts as a potential therapeutic target for congenital central hypoventilation syndrome (CCHS) by mediating the degradation of CCHS-associated polyalanine-expanded Phox2b. TRIM11 modulates the function of neurogenic transcription factor Pax6 through the ubiquitin-proteosome system, and thus plays an essential role for Pax6-dependent neurogenesis. It also binds to and destabilizes a key component of the activator-mediated cofactor complex (ARC105), humanin, a neuroprotective peptide against Alzheimer's disease-relevant insults, and further regulates ARC105 function in transforming growth factor beta (TGFbeta) signaling. Moreover, TRIM11 negatively regulates retinoic acid-inducible gene-I (RIG-I)-mediated interferon-beta (IFNbeta) production and antiviral activity by targeting TANK-binding kinase-1 (TBK1). It may contribute to the endogenous restriction of retroviruses in cells. It enhances N-tropic murine leukemia virus (N-MLV) entry by interfering with Ref1 restriction. It also suppresses the early steps of human immunodeficiency virus HIV-1 transduction, resulting in decreased reverse transcripts. TRIM27, also known as RING finger protein 76 (RNF76), RET finger protein (RFP), or zinc finger protein RFP, is a nuclear E3 ubiquitin-protein ligase that is highly expressed in testis and in various tumor cell lines. Expression of TRIM27 is associated with prognosis of colon and endometrial cancers. TRIM27 was first identified as a fusion partner of the RET receptor tyrosine kinase. It functions as a transcriptional repressor and associates with several proteins involved in transcriptional activity, such as enhancer of polycomb 1 (Epc1), a member of the Polycomb group proteins, and Mi-2beta, a main component of the nucleosome remodeling and deacetylase (NuRD) complex, and the cell cycle regulator retinoblastoma protein (RB1). It also interacts with HDAC1, leading to downregulation of thioredoxin binding protein 2 (TBP-2), which inhibits the function of thioredoxin. Moreover, TRIM27 mediates Pax7-induced ubiquitination of MyoD in skeletal muscle atrophy. In addition, it inhibits muscle differentiation by modulating serum response factor (SRF) and Epc1. TRIM27 promotes a non-canonical polyubiquitination of PTEN, a lipid phosphatase that catalyzes PtdIns(3,4,5)P3 (PIP3) to PtdIns(4,5)P2 (PIP2). It is an IKKepsilon-interacting protein that regulates IkappaB kinase (IKK) function and negatively regulates signaling involved in the antiviral response and inflammation. TRIM27 also forms a protein complex with MBD4 or MBD2 or MBD3, and thus plays an important role in the enhancement of transcriptional repression through MBD proteins in tumorigenesis, spermatogenesis, and embryogenesis. It is a component of an estrogen receptor 1 (ESR1) regulatory complex that is involved in estrogen receptor-mediated transcription in MCF-7 cells. Pssm-ID: 438256 [Multi-domain] Cd Length: 61 Bit Score: 36.51 E-value: 1.82e-03
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| RING-HC_AtRMA-like | cd16745 | RING finger, HC subclass, found in Arabidopsis thaliana RING membrane-anchor proteins (AtRMAs) ... |
11-53 | 9.65e-03 | ||
RING finger, HC subclass, found in Arabidopsis thaliana RING membrane-anchor proteins (AtRMAs) and similar proteins; AtRMAs, including AtRma1, AtRma2, and AtRma3, are endoplasmic reticulum (ER)-localized Arabidopsis homologs of human outer membrane of the ER-anchor E3 ubiquitin-protein ligase, RING finger protein 5 (RNF5). AtRMAs possess E3 ubiquitin ligase activity, and may play a role in the growth and development of Arabidopsis. The AtRMA1 and AtRMA3 genes are predominantly expressed in major tissues, such as cotyledons, leaves, shoot-root junction, roots, and anthers, while AtRMA2 expression is restricted to the root tips and leaf hydathodes. AtRma1 probably functions with the Ubc4/5 subfamily of E2. AtRma2 is likely involved in the cellular regulation of ABP1 expression levels through interacting with auxin binding protein 1 (ABP1). AtRMA proteins contain an N-terminal C3HC4-type RING-HC finger and a trans-membrane-anchoring domain in their extreme C-terminal region. Pssm-ID: 438403 [Multi-domain] Cd Length: 45 Bit Score: 34.00 E-value: 9.65e-03
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