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UBC12 protein (Saccharomyces cerevisiae) - STRING interaction network
"UBC12" - Enzyme that mediates the conjugation of Rub1p, a ubiquitin-like protein, to other proteins in Saccharomyces cerevisiae
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UBC12Enzyme that mediates the conjugation of Rub1p, a ubiquitin-like protein, to other proteins; related to E2 ubiquitin-conjugating enzymes; Accepts the ubiquitin-like protein NEDD8/RUB1 from the UBA3-ULA1 E1 complex and catalyzes its covalent attachment to other proteins. The major substrate is CDC53/Cullin (188 aa)    
Predicted Functional Partners:
UBA3
Protein that activates Rub1p (NEDD8) before neddylation; acts together with Ula1p; may play a role in protein degradation; GFP-fusion protein localizes to the cytoplasm in a punctate pattern ; Catalytic subunit of the dimeric UBA3-ULA1 E1 enzyme. E1 activates NEDD8/RUB1 by first adenylating its C-terminal glycine residue with ATP, thereafter linking this residue to the side chain of the catalytic cysteine, yielding a NEDD8-UBA3 thioester and free AMP. E1 finally transfers NEDD8 to the catalytic cysteine of UBC12 (299 aa)
     
  0.998
CDC53
Cullin, structural protein of SCF complexes (which also contain Skp1p, Cdc34p, Hrt1p and an F-box protein) involved in ubiquitination; SCF promotes the G1-S transition by targeting G1 cyclins and the Cln-CDK inhibitor Sic1p for degradation; Core component of multiple cullin-RING-based SCF (SKP1- CUL1-F-box) E3 ubiquitin-protein ligase complexes which mediate the ubiquitination and subsequent proteasomal degradation of target proteins. As a scaffold protein may contribute to catalysis through positioning of the substrate and the ubiquitin-conjugating enzyme. The SCF complex associates w [...] (815 aa)
       
  0.997
RUB1
Ubiquitin-like protein with similarity to mammalian NEDD8; conjugation (neddylation) substrates include the cullins Cdc53p, Rtt101p, and Cul3p; activated by Ula1p and Uba3p (E1 enzyme pair); conjugation mediated by Ubc12p (E2 enzyme); Ubiquitin-like protein modifier that can be covalently attached to lysine residues of target proteins. Activated by the dimeric UBA3-ULA1 E1 enzyme and conjugated by the E2 UBC12 to substrate proteins. RUB1-conjugated (neddylated) substrate proteins include the cullins CDC53, RTT101 and CUL3, and the modification enhances the ubiquitin-ligase activity of [...] (77 aa)
     
  0.996
ULA1
Protein that activates Rub1p (NEDD8) before neddylation; acts together with Uba3p; may play a role in protein degradation; Regulatory subunit of the dimeric UBA3-ULA1 E1 enzyme. E1 activates NEDD8/RUB1 by first adenylating its C-terminal glycine residue with ATP, thereafter linking this residue to the side chain of the catalytic cysteine, yielding a NEDD8-UBA3 thioester and free AMP. E1 finally transfers NEDD8 to the catalytic cysteine of UBC12 (462 aa)
       
  0.993
HRT1
RING finger containing subunit of Skp1-Cullin-F-box ubiquitin protein ligases (SCF); required for Gic2p, Far1p, Sic1p and Cln2p degradation; may tether Cdc34p (a ubiquitin conjugating enzyme or E2) and Cdc53p (a cullin) subunits of SCF; Core component of multiple cullin-RING-based E3 ubiquitin-protein ligase complexes (CRLs), which mediate the ubiquitination of target proteins. Recruits the E2 ubiquitin- conjugating enzyme CDC34/UBC3 to the complex and brings it into close proximity to the substrate. Also stimulates CDC34/UBC3 autoubiquitination and promotes the neddylation of CDC53 an [...] (121 aa)
     
  0.992
UBA1
Ubiquitin activating enzyme (E1), involved in ubiquitin-mediated protein degradation and essential for viability; Catalyzes the first step in ubiquitin conjugation to mark cellular proteins for degradation through the ubiquitin- proteasome system. Activates ubiquitin by first adenylating its C- terminal glycine residue with ATP, and thereafter linking this residue to the side chain of a cysteine residue in E1, yielding a ubiquitin-E1 thioester and free AMP (1024 aa)
       
  0.978
AOS1
Subunit of a heterodimeric nuclear SUMO activating enzyme (E1) with Uba2p; activates Smt3p (SUMO) before its conjugation to proteins (sumoylation), which may play a role in protein targeting; essential for viability; Could be involved in a ubiquitin-related process important for DNA damage tolerance (347 aa)
     
  0.971
RTT101
Cullin subunit of a Roc1p-dependent E3 ubiquitin ligase complex; role in anaphase progression; implicated in Mms22-dependent DNA repair; involved with Mms1p in nonfunctional rRNA decay; modified by the ubiquitin-like protein, Rub1p; Core component of multiple cullin-RING-based E3 ubiquitin-protein ligase complexes (CRLs), which mediate the ubiquitination of target proteins. As a scaffold protein may contribute to catalysis through positioning of the substrate and the ubiquitin-conjugating enzyme. The CRL associates with CDC34 as the E2 ubiquitin-conjugating enzyme. The functional speci [...] (842 aa)
       
  0.970
CUL3
Ubiquitin-protein ligase, forms a complex with Elc1p that polyubiquitylates monoubiquitylated RNA polymerase II to trigger its proteolysis; cullin family member with similarity to Cdc53p and human CUL3; Component of a ubiquitin-protein ligase. Together with ELA1 is required for polyubiquitination and degradation of RBP1 (744 aa)
       
  0.969
DCN1
Scaffold-type E3 ligase required for cullin neddylation and ubiquitin ligase activation; contains a ubiquitin-binding domain (UBA) for ubiquitin and Nedd8 (Rub1p) interaction and a PONY domain involved in cullin binding and neddylation; Required for neddylation of cullin components of SCF- type E3 ubiquitin ligase complexes. Neddylation of cullins play an essential role in the regulation of SCF-type complexes activity. Does not act by preventing deneddylation, but rather facilitates neddylation, possibly by acting with HRT1/RBX1 to recruit the Nedd8-charged E2 UBC12 to the cullin compo [...] (269 aa)
       
 
  0.965
Your Current Organism:
Saccharomyces cerevisiae
NCBI taxonomy Id: 4932
Other names: Candida robusta, Pachytichospora, S. cerevisiae, Saccharomyces, Saccharomyces capensis, Saccharomyces cerevisiae, Saccharomyces italicus, Saccharomyces oviformis, Saccharomyces uvarum var. melibiosus, lager beer yeast, yeast
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