RING/U-box superfamily protein [Arabidopsis thaliana]
RING finger protein( domain architecture ID 106764)
RING finger protein may function as an E3 ubiquitin protein 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 super family | cl17238 | RING finger (Really Interesting New Gene) domain and U-box domain superfamily; The RING finger ... |
214-243 | 5.77e-04 | ||
RING finger (Really Interesting New Gene) domain and U-box domain superfamily; The RING finger is a specialized type of Zn-finger of 40 to 60 residues that binds two atoms of zinc. It is defined by the "cross-brace" motif that chelates zinc atoms by eight amino acid residues, typically Cys or His, arranged in a characteristic spacing. Canonical RING motifs have been categorized into two major subclasses, RING-HC (C3HC4-type) and RING-H2 (C3H2C3-type), according to their Cys/His content. There are also many variants of RING fingers: some have different Cys/His patterns while some lack a single Cys or His residue at typical Zn ligand positions (the fourth or eighth zinc ligand is prevalently exchanged for an Asp, which can indeed chelate Zn in a RING finger as well). C4C4-, C3HC3D-, C2H2C4-, and C3HC5-type RING fingers are closely related to RING-HC fingers. In contrast, C4HC3- (RING-CH alias RINGv), C3H3C2-, C3H2C2D-, C3DHC3-, and C4HC2H-type RING fingers are more closely related to RING-H2 fingers. However, not all RING finger-containing proteins display regular RING finger features, and the RING finger family has turned out to be multifarious. The degenerate RING fingers of the Siz/PIAS RING (SP-RING) family proteins and sporulation protein RMD5, are characterized by lacking the second, fifth, and sixth Zn2+ ion-coordinating residues. They bind only one Zn2+ ion. On the other hand, the RING fingers of the human APC11 and RBX1 proteins can bind a third Zn atom since they harbor four additional Zn ligands. U-box is a modified form of the RING finger domain that lacks metal chelating Cys and His residues. 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. RING finger/U-box-containing proteins are a group of diverse proteins with a variety of cellular functions, including oncogenesis, development, viral replication, signal transduction, the cell cycle and apoptosis. Many of them are ubiquitin-protein ligases (E3s) that serve as scaffolds for binding to ubiquitin-conjugating enzymes (E2s, also referred to as ubiquitin carrier proteins or UBCs) in close proximity to substrate proteins, which enable efficient transfer of ubiquitin from E2 to the substrates. The actual alignment was detected with superfamily member cd23118: Pssm-ID: 473075 [Multi-domain] Cd Length: 47 Bit Score: 37.34 E-value: 5.77e-04
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Name | Accession | Description | Interval | E-value | ||
RING-H2_SIS3 | cd23118 | RING finger, H2 subclass, found in Arabidopsis thaliana protein SUGAR INSENSITIVE 3 (SIS3) and ... |
214-243 | 5.77e-04 | ||
RING finger, H2 subclass, found in Arabidopsis thaliana protein SUGAR INSENSITIVE 3 (SIS3) and similar proteins; SIS3 is an E3 ubiquitin-protein ligase that acts as a positive regulator of sugar signaling during early seedling development. SIS3 contains a C3H2C3-type RING-H2 finger. Pssm-ID: 438480 [Multi-domain] Cd Length: 47 Bit Score: 37.34 E-value: 5.77e-04
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zf-RING_2 | pfam13639 | Ring finger domain; |
214-243 | 3.40e-03 | ||
Ring finger domain; Pssm-ID: 433370 [Multi-domain] Cd Length: 44 Bit Score: 35.08 E-value: 3.40e-03
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Name | Accession | Description | Interval | E-value | ||
RING-H2_SIS3 | cd23118 | RING finger, H2 subclass, found in Arabidopsis thaliana protein SUGAR INSENSITIVE 3 (SIS3) and ... |
214-243 | 5.77e-04 | ||
RING finger, H2 subclass, found in Arabidopsis thaliana protein SUGAR INSENSITIVE 3 (SIS3) and similar proteins; SIS3 is an E3 ubiquitin-protein ligase that acts as a positive regulator of sugar signaling during early seedling development. SIS3 contains a C3H2C3-type RING-H2 finger. Pssm-ID: 438480 [Multi-domain] Cd Length: 47 Bit Score: 37.34 E-value: 5.77e-04
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RING-H2_PA-TM-RING | cd16454 | RING finger, H2 subclass, found in the PA-TM-RING ubiquitin ligase family; The PA-TM-RING ... |
214-243 | 3.30e-03 | ||
RING finger, H2 subclass, found in the PA-TM-RING ubiquitin ligase family; The PA-TM-RING family represents a group of transmembrane-type E3 ubiquitin ligases, which has been characterized by an N-terminal transient signal peptide, a PA (protease-associated) domain, a TM (transmembrane) domain, as well as a C-terminal C3H2C3-type RING-H2 finger domain. It includes RNF13, RNF167, ZNRF4 (zinc and RING finger 4), GRAIL (gene related to anergy in lymphocytes)/RNF128, RNF130, RNF133, RNF148, RNF149 and RNF150 (which are more closely related), as well as RNF43 and ZNRF3, which have substantially longer C-terminal tail extensions compared with the others. PA-TM-RING proteins are expressed at low levels in all mammalian tissues and species, but they are not present in yeast. They play a common regulatory role in intracellular trafficking/sorting, suggesting that abrogation of their function may result in dysregulation of cellular signaling events in cancer. Pssm-ID: 438118 [Multi-domain] Cd Length: 43 Bit Score: 34.94 E-value: 3.30e-03
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zf-RING_2 | pfam13639 | Ring finger domain; |
214-243 | 3.40e-03 | ||
Ring finger domain; Pssm-ID: 433370 [Multi-domain] Cd Length: 44 Bit Score: 35.08 E-value: 3.40e-03
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zf-RING_5 | pfam14634 | zinc-RING finger domain; |
214-245 | 4.32e-03 | ||
zinc-RING finger domain; Pssm-ID: 434085 [Multi-domain] Cd Length: 43 Bit Score: 34.71 E-value: 4.32e-03
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RING-H2_RNF111-like | cd16474 | RING finger, H2 subclass, found in RING finger proteins RNF111, RNF165, and similar proteins; ... |
215-243 | 5.76e-03 | ||
RING finger, H2 subclass, found in RING finger proteins RNF111, RNF165, and similar proteins; The family includes RING finger proteins RNF111, RNF165, and similar proteins. RNF111, also known as Arkadia, is a nuclear E3 ubiquitin-protein ligase that targets intracellular effectors and modulators of transforming growth factor beta (TGF-beta)/Nodal-related signaling for polyubiquitination and proteasome-dependent degradation. It also interacts with the clathrin-adaptor 2 (AP2) complex and regulates endocytosis of certain cell surface receptors, leading to modulation of epidermal growth factor (EGF) and possibly other signaling pathways. The N-terminal half of RNF111 harbors three SUMO-interacting motifs (SIMs). It thus functions as a SUMO-targeted ubiquitin ligase (STUbL) that directly links nonproteolytic ubiquitylation and SUMOylation in the DNA damage response, as well as triggers degradation of signal-induced polysumoylated proteins, such as the promyelocytic leukemia protein (PML). RNF165, also known as Arkadia-like 2, Arkadia2, or Ark2C, is an E3 ubiquitin ligase with homology to the C-terminal half of RNF111. It is expressed specifically in the nervous system, and can serve to amplify neuronal responses to specific signals. It acts as a positive regulator of bone morphogenetic protein (BMP)-Smad signaling that is involved in motor neuron (MN) axon elongation. Both RNF165 and RNF111 contain a C-terminal C3H2C3-type RING-H2 finger. Pssm-ID: 438137 [Multi-domain] Cd Length: 46 Bit Score: 34.31 E-value: 5.76e-03
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RING-H2_RHA2B | cd23123 | RING finger, H2 subclass, found in Saccharomyces cerevisiae RING-H2 zinc finger protein RHA2B ... |
215-243 | 6.06e-03 | ||
RING finger, H2 subclass, found in Saccharomyces cerevisiae RING-H2 zinc finger protein RHA2B and similar proteins; RHA2B is an E3 ubiquitin-protein ligase involved in the positive regulation of abscisic acid (ABA) signaling and responses to salt and osmotic stresses during seed germination and early seedling development. It acts additively with RHA2A in regulating ABA signaling and drought response. RHA2B contains a C3H2C3-type RING-H2 finger. Pssm-ID: 438485 [Multi-domain] Cd Length: 47 Bit Score: 34.48 E-value: 6.06e-03
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Blast search parameters | ||||
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