SPH1 protein (Saccharomyces cerevisiae) - STRING interaction network
"SPH1" - Protein involved in shmoo formation and bipolar bud site selection in Saccharomyces cerevisiae
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Predicted Interactions
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Gene Fusion
SPH1Protein involved in shmoo formation and bipolar bud site selection; homologous to Spa2p, localizes to sites of polarized growth in a cell cycle dependent- and Spa2p-dependent manner, interacts with MAPKKs Mkk1p, Mkk2p, and Ste7p; Polarity-determining protein which forms a conjugate with the ubiquitin-like modifier HUB1. Involved in bud site selection and cellular morphogenesis during conjugation. Required for pseudohyphal growth (530 aa)    
Predicted Functional Partners:
Signal transducing MAP kinase kinase involved in pheromone response, where it phosphorylates Fus3p, and in the pseudohyphal/invasive growth pathway, through phosphorylation of Kss1p; phosphorylated by Ste11p, degraded by ubiquitin pathway; Serine/threonine protein kinase required for cell-type- specific transcription and signal transduction in yeast. It is thought that it is phosphorylated by the ste11 protein kinase and that it can phosphorylate the FUS3 and or KSS1 kinases (515 aa)
Actin- and formin-interacting protein; stimulates actin cable nucleation by recruiting actin monomers to Bni1p; involved in polarized cell growth; isolated as bipolar budding mutant; potential Cdc28p substrate; Not essential for mitotic growth but is necessary for normal morphogenesis. Involved in the organization and/or function of the actin cytoskeleton (788 aa)
Ubiquitin-like protein modifier; promotes alternative splicing of SRC1 pre-mRNA; binds non-covalently to the HIND domain of Snu66, may function in modification of Sph1p and Hbt1p, functionally complemented by the human or S. pombe ortholog; mechanis /.../ub1p adduct formation not yet clear; Forms conjugate with SPH1 and HBT1. Involved in morphogenesis (73 aa)
Signal transducing MEK kinase involved in pheromone response and pseudohyphal/invasive growth pathways where it phosphorylates Ste7p, and the high osmolarity response pathway, via phosphorylation of Pbs2p; regulated by Ste20p and Ste50p; Serine/threonine protein kinase required for cell-type- specific transcription and signal transduction in yeast. It is thought that it phosphorylates the STE7 protein kinase which itself, phosphorylates the FUS3 and or KSS1 kinases (717 aa)
Formin, nucleates the formation of linear actin filaments, involved in cell processes such as budding and mitotic spindle orientation which require the formation of polarized actin cables, functionally redundant with BNR1; Required for the assembly of F-actin structures, such as actin cables and stress fibers. Nucleates actin filaments. Binds to the barbed end of the actin filament and acts as leaky capper, slowing both polymerization and depolymerization. Protects the growing actin fiber from tight capping proteins and so increases the time of elongation and the total amount of F-acti [...] (1953 aa)
Mitogen-activated kinase kinase involved in protein kinase C signaling pathway that controls cell integrity; upon activation by Bck1p phosphorylates downstream target, Slt2p; functionally redundant with Mkk2p; Involved in a signal transduction pathway that play a role in yeast cell morphogenesis and cell growth. This pathway seems to start by SMP3; then involve the kinase PKC1 that may act on the BCK1 kinase that then phosphorylates MKK1 and MKK2 which themselves phosphorylate the MPK1 kinase (508 aa)
Coiled-coil polarisome protein required for polarized morphogenesis, cell fusion, and low affinity Ca2+ influx; forms polarisome complex with Bni1p, Bud6p, and Spa2p; localizes to sites of polarized growth; Localized to sites of polarized growth and is required for efficient mating and bipolar budding (420 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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