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STRINGSTRING
STRING protein interaction network
Nodes:
Network nodes represent proteins
splice isoforms or post-translational modifications are collapsed, i.e. each node represents all the proteins produced by a single, protein-coding gene locus.
Node Color
colored nodes:
query proteins and first shell of interactors
white nodes:
second shell of interactors
Node Content
empty nodes:
proteins of unknown 3D structure
filled nodes:
a 3D structure is known or predicted
Edges:
Edges represent protein-protein associations
associations are meant to be specific and meaningful, i.e. proteins jointly contribute to a shared function; this does not necessarily mean they are physically binding to each other.
Known Interactions
from curated databases
experimentally determined
Predicted Interactions
gene neighborhood
gene fusions
gene co-occurrence
Others
textmining
co-expression
protein homology
Your Input:
Neighborhood
Gene Fusion
Cooccurrence
Coexpression
Experiments
Databases
Textmining
[Homology]
Score
pupHypothetical protein; Protein modifier that is covalently attached to lysine residues of substrate proteins, thereby targeting them for proteasomal degradation. The tagging system is termed pupylation. (72 aa)    
Predicted Functional Partners:
arc
Proteasome-associated ATPase; ATPase which is responsible for recognizing, binding, unfolding and translocation of pupylated proteins into the bacterial 20S proteasome core particle. May be essential for opening the gate of the 20S proteasome via an interaction with its C-terminus, thereby allowing substrate entry and access to the site of proteolysis. Thus, the C-termini of the proteasomal ATPase may function like a 'key in a lock' to induce gate opening and therefore regulate proteolysis.
 
 
 
 0.995
prcB
20S proteasome subunit beta precursor; Component of the proteasome core, a large protease complex with broad specificity involved in protein degradation. Belongs to the peptidase T1B family.
 
 
 
 0.992
prcA
20S proteasome alpha-subunit; Component of the proteasome core, a large protease complex with broad specificity involved in protein degradation. Belongs to the peptidase T1A family.
 
 
 
 0.990
DC74_2116
Proteasome component.
 
  
 0.962
pafA
Proteasome component; Catalyzes the covalent attachment of the prokaryotic ubiquitin-like protein modifier Pup to the proteasomal substrate proteins, thereby targeting them for proteasomal degradation. This tagging system is termed pupylation. The ligation reaction involves the side-chain carboxylate of the C-terminal glutamate of Pup and the side- chain amino group of a substrate lysine.
 
  
 0.856
DC74_4150
Hypothetical protein.
  
   
 0.711
DC74_2118
Ferredoxin.
 
     0.710
DC74_2614
Hypothetical protein.
  
     0.648
DC74_4480
Ion-transporting ATPase.
  
     0.573
DC74_4479
Hypothetical protein.
  
     0.546
Your Current Organism:
Streptomyces albulus
NCBI taxonomy Id: 68570
Other names: ATCC 12757, BCRC 11819, CBS 711.72, CCRC 11819, CCRC:11819, DSM 40492, IFO 13410, ISP 5492, JCM 4718, KCTC 9668, NBRC 13410, NRRL B-5386, NRRL-ISP 5492, S. albulus, strain IMC S-0802
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STRING is a Core Data Resource as designated by Global Biodata Coalition and ELIXIR.