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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Gene Fusion
Cooccurrence
Coexpression
Experiments
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[Homology]
Score
mapZConserved hypothetical protein; Early cell division protein that marks the future cell division site and supports proper FtsZ ring positioning. (464 aa)    
Predicted Functional Partners:
ftsZ
Cell division protein FtsZ; 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.
    
 
 0.983
pkn2
Eukaryotic-type serine/threonine kinase; Protein kinase involved in signal transduction pathways that regulate various cellular processes. Likely senses intracellular peptidoglycan subunits present in the cell division septa of actively growing cells; thus, intracellular unlinked peptidoglycan may serve as the signal molecules that trigger StkP phosphorylation activity on a set of substrates. Plays a crucial role in the regulation of cell shape and cell division of S.pneumoniae through control of at least DivIVA activity. Identified target substrates that are specifically phosphorylate [...]
   
 
 0.979
divIVA
Cell-division initiation protein (septum placement); Appears to have a multifaceted role in controlling cell morphology, completion of cell division and separation, as well as chromosome segregation, through a complex interaction web. Seems to be primarily involved in the formation and maturation of the cell poles.
      
 0.955
gpsB
Conserved hypothetical 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.
     
 0.896
ftsA
Cell division protein FtsA; Cell division protein that is involved in the assembly of the Z ring. May serve as a membrane anchor for the Z ring. Belongs to the FtsA/MreB family.
      
 0.883
spr0574
Conserved hypothetical protein.
      
 0.861
spr0333
Conserved hypothetical protein; Belongs to the methyltransferase superfamily.
     
 0.844
mltG
Hypothetical protein; Functions as a peptidoglycan terminase that cleaves nascent peptidoglycan strands endolytically to terminate their elongation. Belongs to the transglycosylase MltG family.
  
  
 0.830
pppL
Phosphoprotein phosphatase; Protein phosphatase able to dephosphorylate StkP-P and other phosphorylated protein substrates. PhpP and its cognate protein kinase StkP appear to constitute a functional signaling couple in vivo, PhpP's primary role being probably to control phosphorylation levels of StkP and of its targets. PhpP thus performs an essential control of StkP activity (By similarity); Belongs to the PP2C family.
     
 0.733
sepF
Conserved hypothetical protein; 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.
      
 0.728
Your Current Organism:
Streptococcus pneumoniae
NCBI taxonomy Id: 171101
Other names: S. pneumoniae R6, Streptococcus pneumoniae (strain ATCC BAA-255 / R6), Streptococcus pneumoniae R6, Streptococcus pneumoniae str. R6
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STRING is a Core Data Resource as designated by Global Biodata Coalition and ELIXIR.