MUB1 protein (Saccharomyces cerevisiae) - STRING interaction network
"MUB1" - MYND domain-containing protein required for ubiquitination and turnover of Rpn4p in Saccharomyces cerevisiae
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Known Interactions
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experimentally determined
Predicted Interactions
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Gene Fusion
MUB1MYND domain-containing protein required for ubiquitination and turnover of Rpn4p; interacts with Ubr2p (E3) and indirectly with Rad6p (E2); short-lived protein degraded in a Ubr2p/Rad6p dependent manner; similar to the A. nidulans samB gene; Involved in the determination of the onset of polarized growth. Required for the ubiquitin-dependent degradation of RPN4. Cooperates with UBR2 to transfer ubiquitin from RAD6 to RPN4 (620 aa)    
Predicted Functional Partners:
Cytoplasmic ubiquitin-protein ligase (E3); required for ubiquitylation of Rpn4p; mediates formation of a Mub1p-Ubr2p-Rad6p complex; E3 ubiquitin-protein ligase which probably functions outside the N-end rule pathway, since it lacks the residues essential for the degradation of N-end rule substrates. Mediates RPN4 ubiquitination and subsequent degradation (1872 aa)
Ubiquitin-conjugating enzyme (E2), involved in postreplication repair (as a heterodimer with Rad18p), DSBR and checkpoint control (as a heterodimer with Bre1p), ubiquitin-mediated N-end rule protein degradation (as a heterodimer with Ubr1p; Catalyzes the covalent attachment of ubiquitin to other proteins. In association with the E3 enzyme BRE1 and LGE1, it plays a role in transcription regulation by catalyzing the monoubiquitination of histone H2B to form H2BK123ub1. H2BK123ub1 gives a specific tag for epigenetic transcriptional activation, elongation by RNA polymerase II, telomeric si [...] (172 aa)
Transcription factor that stimulates expression of proteasome genes; Rpn4p levels are in turn regulated by the 26S proteasome in a negative feedback control mechanism; RPN4 is transcriptionally regulated by various stress responses; Acts as a transcriptional activator of a number of genes encoding proteasomal subunits. Binds to a PACE (proteasome- associated control element) DNA sequence 5’-GGTGGCAAA-3’. Its expression is in turn regulated by the 26S proteasome, thereby providing a negative feedback control mechanism. Required for normal growth at low temperatures (531 aa)
Ribonucleotide reductase inhibitor involved in regulating dNTP production; regulated by Mec1p and Rad53p during DNA damage and S phase; Strong inhibitor of ribonucleotide reductase (RNR1) and is involved in regulating dNTP production (104 aa)
Protein of unknown function; has a CUE domain that binds ubiquitin, which may facilitate intramolecular monoubiquitination (117 aa)
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)
Putative protein of unknown function; green fluorescent protein (GFP)-fusion protein localizes to the cytoplasm and to the nucleus (633 aa)
Putative protein of unknown function; green fluorescent protein (GFP)-fusion protein localizes to the cytoplasm and the nucleus; YDL129W is not an essential gene (291 aa)
Essential component of the MIND kinetochore complex (Mtw1p Including Nnf1p-Nsl1p-Dsn1p) which joins kinetochore subunits contacting DNA to those contacting microtubules; important for chromosome segregation; Acts as essential component of the kinetochore MIND complex, which is required for the spindle checkpoint and kinetochore integrity. MIND plays a role in establishing a bipolar spindle-kinetochore interaction by joining kinetochore subunits contacting DNA to those contacting microtubules (576 aa)
Putative protein of unknown function; YCR076C is not an essential gene; Plays a role in the establishment of transcriptional silencing boundaries, preventing the propagation of heterochromatic silencing (250 aa)
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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