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FIS1 protein (Saccharomyces cerevisiae) - STRING interaction network
"FIS1" - Protein involved in mitochondrial membrane fission and peroxisome abundance in Saccharomyces cerevisiae
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FIS1Protein involved in mitochondrial membrane fission and peroxisome abundance; required for localization of Dnm1p and Mdv1p during mitochondrial division; mediates ethanol-induced apoptosis and ethanol-induced mitochondrial fragmentation; Has a role in mitochondrial fission. Has a role in outer membrane fission but not matrix separation. Required for targeting MDV1 to the mitochondria. Regulates the assembly of DNM1 into punctate structures, in the mitochondrial tubules, promoting mitochondrial membrane constriction and/or division (155 aa)    
Predicted Functional Partners:
DNM1
Dynamin-related GTPase required for mitochondrial fission and morphology; assembles on the cytoplasmic face of mitochondrial tubules at sites at which division will occur; also participates in endocytosis and regulating peroxisome abundance; Microtubule-associated force-producing protein that participates mitochondrial fission. Fission of mitochondria occurs in many cell types and constitutes an important step in mitochondria morphology, which is balanced between fusion and fission. Functions antagonistically with FZO1 (757 aa)
       
  0.997
MDV1
Peripheral protein of the cytosolic face of the mitochondrial outer membrane, required for mitochondrial fission; interacts with Fis1p and with the dynamin-related GTPase Dnm1p; contains WD repeats; Involved in mitochondrial fission. Has a partially redundant function to CAF4 in acting as an adapter protein, binding to FIS1 on the mitochondrial outer membrane and recruiting the dynamin-like GTPase DNM1 to form mitochondrial fission complexes. Formation of these complexes is required to promote constriction and fission of the mitochondrial compartment at a late step in mitochondrial division (714 aa)
       
 
  0.997
CAF4
WD40 repeat-containing protein associated with the CCR4-NOT complex, interacts in a Ccr4p-dependent manner with Ssn2p; also interacts with Fis1p, Mdv1p and Dnm1p and plays a role in mitochondrial fission; Involved in mitochondrial fission. Has a partially redundant function to MDV1 in acting as an adapter protein, binding to FIS1 on the mitochondrial outer membrane and recruiting the dynamin-like GTPase DNM1 to form mitochondrial fission complexes. Plays a key role in determining the polarized localization of those DNM1 clusters that are not immediately involved in the mitochondrial fi [...] (643 aa)
       
 
  0.995
FZO1
Mitofusin; integral membrane protein involved in mitochondrial outer membrane tethering and fusion; role in mitochondrial genome maintenance; efficient tethering and degradation of Fzo1p requires an intact N-terminal GTPase domain; targeted for dest /.../n by the ubiquitin ligase SCF-Mdm30p and the cytosolic ubiquitin-proteasome system; Essential transmembrane GTPase, which mediates mitochondrial fusion. Fusion of mitochondria occurs in many cell types and constitutes an important step in mitochondrial morphology, which is balanced between fusion and fission, mediated by FZO1 and DNM1, [...] (855 aa)
       
 
  0.987
VPS1
Dynamin-like GTPase required for vacuolar sorting; also involved in actin cytoskeleton organization, endocytosis, late Golgi-retention of some proteins, regulation of peroxisome biogenesis; Essential for protein sorting in meiotic cell division of Saccharomyces cerevisiae; it binds microtubules. Could also be involved in microtubule-associated motility. Necessary for membrane protein retention in a late Golgi compartment. Interacts with the MVP1 protein (704 aa)
       
  0.965
MGM1
Mitochondrial GTPase, present in complex with Ugo1p and Fzo1p; required for mt morphology and genome maintenance; exists as long and short form with different distributions; homolog of human OPA1 involved in autosomal dominant optic atrophy; Dynamin-related GTPase required for mitochondrial fusion. Coordinates interaction between the inner and outer mitochondrial membrane to promote the formation of the double membrane (881 aa)
       
 
  0.958
PEX11
Peroxisomal membrane protein required for medium-chain fatty acid oxidation and peroxisome proliferation, possibly by inducing membrane curvature; localization regulated by phosphorylation; transcription regulated by Adr1p and Pip2p-Oaf1p; Involved in peroxisomal proliferation. Promotes peroxisome division and biogenesis (236 aa)
       
 
  0.901
TOM20
Component of the TOM (translocase of outer membrane) complex responsible for recognition and initial import steps for all mitochondrially directed proteins; acts as a receptor for incoming precursor proteins; Central component of the TOM (translocase of outer membrane) receptor complex responsible for the recognition and translocation of cytosolically synthesized mitochondrial preproteins. Together with TOM22 functions as the transit peptide receptor at the surface of the mitochondrion outer membrane and facilitates the movement of preproteins into the TOM40 translocation pore (183 aa)
           
  0.822
UGO1
Outer membrane component of the mitochondrial fusion machinery; binds directly to Fzo1p and Mgm1p and thus links these two GTPases during mitochondrial fusion; involved in fusion of both the outer and inner membranes; facilitates dimerization of Fzo /.../ing fusion; import into the outer membrane is mediated by Tom70p and Mim1p; has similarity to carrier proteins but is not likely to function as a transmembrane transporter; Required for mitochondrial fusion as well as normal mitochondrial morphology by bridging the essential interaction between FZO1 and MGM1. May coordinate fusion of i [...] (502 aa)
           
  0.798
TOM40
Component of the TOM (translocase of outer membrane) complex responsible for recognition and initial import steps for all mitochondrially directed proteins; constitutes the core element of the protein conducting pore; Channel-forming protein essential for import of protein precursors into mitochondria (387 aa)
       
 
  0.735
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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