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MRS6 protein (Saccharomyces cerevisiae) - STRING interaction network
"MRS6" - Rab escort protein, forms a complex with the Ras-like small GTPase Ypt1p that is required for the prenylation of Ypt1p by protein geranylgeranyltransferase type II in Saccharomyces cerevisiae
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Known Interactions
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experimentally determined
Predicted Interactions
gene neighborhood
gene fusions
gene co-occurrence
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textmining
co-expression
protein homology
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MRS6Rab escort protein, forms a complex with the Ras-like small GTPase Ypt1p that is required for the prenylation of Ypt1p by protein geranylgeranyltransferase type II (Bet2p-Bet4p); sequence similarity to mammalian choroideraemia gene; Substrate-binding subunit (component A) of the Rab geranylgeranyltransferase (GGTase) complex. Binds unprenylated Rab proteins and presents the substrate peptide to the catalytic component B. The component A is thought to be regenerated by transferring its prenylated Rab back to the donor membrane (603 aa)    
Predicted Functional Partners:
BET4
Alpha subunit of Type II geranylgeranyltransferase required for vesicular transport between the endoplasmic reticulum and the Golgi; provides a membrane attachment moiety to Rab-like proteins Ypt1p and Sec4p; Catalyzes the transfer of a geranyl-geranyl moiety from geranyl-geranyl pyrophosphate to proteins having the C-terminal -XCC or -XCXC, where both cysteines may become modified. Acts on YPT1 and SEC4 (327 aa)
     
  0.996
BET2
Beta subunit of Type II geranylgeranyltransferase required for vesicular transport between the endoplasmic reticulum and the Golgi; provides a membrane attachment moiety to Rab-like proteins Ypt1p and Sec4p; Catalyzes the transfer of a geranyl-geranyl moiety from geranyl-geranyl pyrophosphate to proteins having the C-terminal -XCC or -XCXC, where both cysteines may become modified. Acts on YPT1 and SEC4 (325 aa)
       
  0.993
SEC4
Rab family GTPase essential for vesicle-mediated exocytic secretion and autophagy; associates with the exocyst component Sec15p and may regulate polarized delivery of transport vesicles to the exocyst at the plasma membrane; Involved in exocytosis. Maybe by regulating the binding and fusion of secretory vesicles with the cell surface. The GTP- bound form of SEC4 may interact with an effector, thereby stimulating its activity and leading to exocytotic fusion. SEC4 may be an upstream activator of the 19.5S SEC8/SEC15 particle. SEC4 probably interacts directly with SEC8; it could serve as [...] (215 aa)
     
 
  0.978
YPT7
Rab family GTPase; GTP-binding protein of the rab family; required for homotypic fusion event in vacuole inheritance, for endosome-endosome fusion, similar to mammalian Rab7; Needed for homotypic vacuole fusion, the last step in the vacuole inheritance process (208 aa)
     
 
  0.975
YPT6
Rab family GTPase, Ras-like GTP binding protein involved in the secretory pathway, required for fusion of endosome-derived vesicles with the late Golgi, maturation of the vacuolar carboxypeptidase Y; has similarity to the human GTPase, Rab6; Protein transport. Might participate in post-Golgi transport (215 aa)
     
 
  0.970
YPT1
Rab family GTPase, involved in the ER-to-Golgi step of the secretory pathway; complex formation with the Rab escort protein Mrs6p is required for prenylation of Ypt1p by protein geranylgeranyltransferase type II (Bet2p-Bet4p); The small GTPases Rab are key regulators of intracellular membrane trafficking, from the formation of transport vesicles to their fusion with membranes. Rabs cycle between an inactive GDP-bound form and an active GTP-bound form that is able to recruit to membranes different set of downstream effectors directly responsible for vesicle formation, movement, tetherin [...] (206 aa)
     
 
  0.966
YPT52
Rab family GTPase, similar to Ypt51p and Ypt53p and to mammalian rab5; required for vacuolar protein sorting and endocytosis; Required for transport in the endocytic pathway and for correct sorting of the vacuolar hydrolases suggesting a possible intersection of the endocytic with the vacuolar sorting pathway (234 aa)
       
 
  0.947
VPS21
Rab family GTPase required for endocytic transport and for sorting of vacuolar hydrolases; localized in endocytic intermediates; detected in mitochondria; geranylgeranylation required for membrane association; mammalian Rab5 homolog; Required for protein transport to the vacuole. Involved in two vesicle trafficking steps to the prevacuolar compartment (PVC), regulating the docking of endosomes and Golgi vesicles to the PVC by interacting with PEP7/VAC1 on the PVC membrane and promoting SNARE complex formation (210 aa)
       
 
  0.942
SFP1
Transcription factor that controls expression of ribosome biogenesis genes in response to nutrients and stress, regulates G2/M transitions during mitotic cell cycle and DNA-damage response, modulates cell size; regulated by TORC1 and Mrs6p; can form /.../ISP+] prion; Transcription factor that regulates ribosomal protein (RP) and ribosome biogenesis (Ribi) gene expression in response to nutrients and stress. Promotes RP gene expression under optimal growth conditions. Leaves the nucleus upon environmental challenges, resulting in a down-regulation of RP gene transcription. The effect of [...] (683 aa)
     
 
  0.934
YPT31
Rab family GTPase, very similar to Ypt32p; involved in the exocytic pathway; mediates intra-Golgi traffic or the budding of post-Golgi vesicles from the trans-Golgi; Required for protein transport in the secretory pathway. Probably involved in regulation of secretory vesicle formation at the trans-Golgi compartment. Plays a role in autophagy (223 aa)
     
 
  0.858
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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