ARM repeat superfamily protein [Arabidopsis thaliana]
Protein Classification
U-box domain-containing protein( domain architecture ID 11616232)
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 | ||
| RING-Ubox_PUB | cd16664 | U-box domain, a modified RING finger, found in Arabidopsis plant U-box proteins (AtPUB) and ... |
75-126 | 6.14e-21 | ||
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: 85.69 E-value: 6.14e-21
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| Name | Accession | Description | Interval | E-value | ||
| RING-Ubox_PUB | cd16664 | U-box domain, a modified RING finger, found in Arabidopsis plant U-box proteins (AtPUB) and ... |
75-126 | 6.14e-21 | ||
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: 85.69 E-value: 6.14e-21
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| Ubox | smart00504 | Modified RING finger domain; Modified RING finger domain, without the full complement of Zn2 ... |
77-139 | 9.30e-16 | ||
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: 71.50 E-value: 9.30e-16
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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 ... |
74-144 | 6.25e-12 | ||
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: 60.79 E-value: 6.25e-12
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| Name | Accession | Description | Interval | E-value | ||
| RING-Ubox_PUB | cd16664 | U-box domain, a modified RING finger, found in Arabidopsis plant U-box proteins (AtPUB) and ... |
75-126 | 6.14e-21 | ||
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: 85.69 E-value: 6.14e-21
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| Ubox | smart00504 | Modified RING finger domain; Modified RING finger domain, without the full complement of Zn2 ... |
77-139 | 9.30e-16 | ||
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: 71.50 E-value: 9.30e-16
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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 ... |
74-144 | 6.25e-12 | ||
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: 60.79 E-value: 6.25e-12
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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 ... |
75-129 | 7.96e-12 | ||
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: 59.82 E-value: 7.96e-12
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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 ... |
78-121 | 4.65e-10 | ||
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: 54.87 E-value: 4.65e-10
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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 ... |
75-139 | 4.03e-07 | ||
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: 47.08 E-value: 4.03e-07
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| RING-Ubox_CHIP | cd16654 | U-box domain, a modified RING finger, found in carboxyl terminus of HSP70-interacting protein ... |
74-143 | 3.10e-05 | ||
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: 41.79 E-value: 3.10e-05
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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 ... |
78-132 | 3.70e-05 | ||
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: 41.32 E-value: 3.70e-05
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| RING-Ubox_UBE4B | cd16658 | U-box domain, a modified RING finger, found in ubiquitin conjugation factor E4 B (UBE4B) and ... |
73-139 | 2.80e-04 | ||
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: 39.18 E-value: 2.80e-04
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| vRING-HC-C4C4_RBBP6 | cd16620 | Variant RING finger, HC subclass (C4C4-type), found in retinoblastoma-binding protein 6 (RBBP6) ... |
75-119 | 9.23e-03 | ||
Variant RING finger, HC subclass (C4C4-type), found in retinoblastoma-binding protein 6 (RBBP6) and similar proteins; RBBP6, also known as proliferation potential-related protein, protein P2P-R, retinoblastoma-binding Q protein 1 (RBQ-1), or p53-associated cellular protein of testis (PACT), is a nuclear E3 ubiquitin-protein ligase involved in multiple processes, such as the control of gene expression, mitosis, cell differentiation, and cell apoptosis. It plays a role in both promoting and inhibiting apoptosis in many human cancers, including esophageal, lung, hepatocellular, and colon cancers, familial myeloproliferative neoplasms, as well as in human immunodeficiency virus-associated nephropathy (HIVAN). It functions as an Rb- and p53-binding protein that plays an important role in chaperone-mediated ubiquitination and possibly in protein quality control. It acts as a scaffold protein to promote the assembly of the p53/TP53-MDM2 complex, resulting in an increase of MDM2-mediated ubiquitination and degradation of p53/TP53, and leading to both apoptosis and cell growth. It is also a double-stranded RNA-binding protein that plays a role in mRNA processing by regulating the human polyadenylation machinery and modulating expression of mRNAs with AU-rich 3' untranslated regions (UTRs). Moreover, RBBP6 ubiquitinates and destabilizes the transcriptional repressor ZBTB38 that negatively regulates transcription and levels of the MCM10 replication factor on chromatin. Furthermore, RBBP6 is involved in tunicamycin-induced apoptosis by mediating protein kinase (PKR) activation. RBBP6 contains an N-terminal ubiquitin-like domain and a C4C4-type RING finger, whose overall folding is similar to that of the typical C3HC4-type RING-HC finger. RBBP6 interacts with chaperones Hsp70 and Hsp40 through its N-terminal ubiquitin-like domain. It promotes the ubiquitination of p53 by Hdm2 in an E4-like manner through its RING finger. It also interacts directly with the pro-proliferative transcription factor Y-box-binding protein-1 (YB-1) via its RING finger. Pssm-ID: 438282 [Multi-domain] Cd Length: 55 Bit Score: 34.30 E-value: 9.23e-03
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