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
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Neighborhood
Gene Fusion
Cooccurrence
Coexpression
Experiments
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Textmining
[Homology]
Score
gpsBCell division protein; Divisome component that associates with the complex late in its assembly, after the Z-ring is formed, and is dependent on DivIC and PBP2B for its recruitment to the divisome. Together with EzrA, is a key component of the system that regulates PBP1 localization during cell cycle progression. Its main role could be the removal of PBP1 from the cell pole after pole maturation is completed. Also contributes to the recruitment of PBP1 to the division complex. Not essential for septum formation; Belongs to the GpsB family. (98 aa)    
Predicted Functional Partners:
ponA
Peptidoglycan glycosyltransferase (penicillin-binding proteins 1A and 1B); Cell wall formation. Synthesis of cross-linked peptidoglycan from the lipid intermediates. The enzyme has a penicillin-insensitive transglycosylase N-terminal domain (formation of linear glycan strands) and a penicillin-sensitive transpeptidase C-terminal domain (cross- linking of the peptide subunits).
 
 
 0.995
ezrA
Negative regulator of FtsZ ring formation; Negative regulator of FtsZ ring formation; modulates the frequency and position of FtsZ ring formation. Inhibits FtsZ ring formation at polar sites. Interacts either with FtsZ or with one of its binding partners to promote depolymerization.
  
 
 0.991
divIB
Cell-division initiation protein; Cell division protein that may be involved in stabilizing or promoting the assembly of the division complex. Plays an essential role in division at high temperatures, maybe by protecting FtsL from degradation or by promoting formation of the FtsL-DivIC complex. May modulate the transpeptidase activity of PBP-2B. Also required for efficient sporulation at all temperatures. Could be directly involved in the engulfment process or be required to form a sporulation septum competent for engulfment. Influences the Spo0J/Soj system of chromosome segregation. B [...]
 
   
 0.959
divIVA
Cell-division initiation protein; May act as a pilot protein, directing MinCD to the polar septation sites or by inhibiting MinCD at the midcell site of division. Required for polar localization of the chromosome during sporulation.
  
  
 0.946
mreC
Cell-shape determining protein; Involved in formation and maintenance of cell shape. Required for the formation of proper helical filaments of MreB and for cell wall synthesis in the cylindrical part of the cell leading to cell elongation; Belongs to the MreC family.
  
 
 0.945
sepF
Cell division machinery factor; Cell division protein that is part of the divisome complex and is recruited early to the Z-ring. Probably stimulates Z-ring formation, perhaps through the cross-linking of FtsZ protofilaments. Its function overlaps with FtsA; Belongs to the SepF family.
 
  
 0.944
prkC
Protein kinase; Protein kinase that is responsible for triggering spore germination in response to muropeptides, signaling bacteria to exit dormancy. PrkC is thus a germination receptor that binds peptidoglycan fragments containing m-Dpm (meso-diaminopimelate), which act as spore germinants. Autophosphorylates and phosphorylates EF-G (elongation factor G, fusA); the latter modification is likely necessary for germination in response to peptidoglycan. Another group did not detect phosphorylation of EF-G. PrkC is a substrate in vitro of the cotranscribed phosphatase PrpC, which suggests [...]
 
 
 0.944
pbpB
Penicillin-binding protein 2B; Penicillin-binding proteins (PBPs) function in the late steps of murein biosynthesis. PBP-2B is required for vegetative cell division and sporulation septation. Beta-lactamase inactivates the PBPs by acylating an essential serine residue in the active site of these proteins, thereby interrupting normal cell wall synthesis; Belongs to the transpeptidase family.
 
  
 0.930
ftsZ
Cell-division initiation protein; Essential cell division protein that forms a contractile ring structure (Z ring) at the future cell division site. The regulation of the ring assembly controls the timing and the location of cell division. One of the functions of the FtsZ ring is to recruit other cell division proteins to the septum to produce a new cell wall between the dividing cells. Binds GTP and shows GTPase activity.
  
  
 0.925
ftsA
Cell-division protein essential fo Z-ring assembly; Cell division protein that is required for the assembly of the Z ring. May serve as a membrane anchor for the Z ring (By similarity). Binds and hydrolyzes ATP. Also involved in sporulation (Probable). Belongs to the FtsA/MreB family.
 
  
 0.906
Your Current Organism:
Bacillus subtilis 168
NCBI taxonomy Id: 224308
Other names: B. subtilis subsp. subtilis str. 168, Bacillus subtilis subsp. subtilis 168, Bacillus subtilis subsp. subtilis str. 168, Bacillus subtilis subsp. subtilis str. BGSC 1A700
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