close STRING v12.5 is now available!
The next version of STRING is ready for use in your analyses: updated networks across STRING • newly available directed regulatory networks • a new typed view showing functional, physical, and regulatory edges in one network • new clustering options and cluster-based layouts • … and much more!
Explore STRING v12.5 →
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
cysMCysteine synthase B; Two cysteine synthase enzymes are found. Both catalyze the same reaction. Cysteine synthase B can also use thiosulfate in place of sulfide to give cysteine thiosulfonate as a product. (303 aa)    
Predicted Functional Partners:
cysE
Serine acetyltransferase. (SW:CYSE_SALTY); Belongs to the transferase hexapeptide repeat family.
 
 0.997
cysW
Thiosulfate permease W protein; ABC superfamily (membrane); similar to E. coli sulfate transport system permease W protein (AAC75476.1); Blastp hit to AAC75476.1 (149 aa), 99% identity in aa 1 - 149.
 
  
 0.968
cysA
Sulfate permease A protein; Part of the ABC transporter complex CysAWTP involved in sulfate/thiosulfate import. Responsible for energy coupling to the transport system.
 
  
 0.958
cysP
Thiosulfate transport protein; Part of the ABC transporter complex CysAWTP (TC 3.A.1.6.1) involved in sulfate/thiosulfate import. This protein specifically binds thiosulfate and is involved in its transmembrane transport (By similarity).
 
  
 0.935
cysH
3'-phosphoadenosine 5'-phosphosulfate reductase; Reduction of activated sulfate into sulfite; Belongs to the PAPS reductase family. CysH subfamily.
  
  
 0.924
metC
Cystathionine beta-lyase; Catalyzes the cleavage of cystathionine to homocysteine, pyruvate and ammonia during methionine biosynthesis.
 
 0.923
cysU
Thiosulfate transport protein; Part of the ABC transporter complex CysAWTP (TC 3.A.1.6.1) involved in sulfate/thiosulfate import. Probably responsible for the translocation of the substrate across the membrane (By similarity).
 
  
 0.920
cysI
NADPH dependent sulfite reductase, alpha subunit; Component of the sulfite reductase complex that catalyzes the 6-electron reduction of sulfite to sulfide. This is one of several activities required for the biosynthesis of L-cysteine from sulfate; Belongs to the nitrite and sulfite reductase 4Fe-4S domain family.
  
 
 0.916
cysS
Similar to E. coli cysteine tRNA synthetase (AAC73628.1); Blastp hit to AAC73628.1 (461 aa), 94% identity in aa 1 - 461; Belongs to the class-I aminoacyl-tRNA synthetase family.
  
 
 0.910
cysJ
Sulfite reductase, beta (flavoprotein) subunit; Component of the sulfite reductase complex that catalyzes the 6-electron reduction of sulfite to sulfide. This is one of several activities required for the biosynthesis of L-cysteine from sulfate. The flavoprotein component catalyzes the electron flow from NADPH -> FAD -> FMN to the hemoprotein component; Belongs to the NADPH-dependent sulphite reductase flavoprotein subunit CysJ family. In the C-terminal section; belongs to the flavoprotein pyridine nucleotide cytochrome reductase family.
 
 
 0.898
Your Current Organism:
Salmonella enterica Typhimurium
NCBI taxonomy Id: 99287
Other names: S. enterica subsp. enterica serovar Typhimurium str. LT2, Salmonella enterica subsp. enterica serovar Typhimurium LT2, Salmonella enterica subsp. enterica serovar Typhimurium str. LT2, Salmonella enterica subsp. enterica serovar Typhimurium strain LT2, Salmonella enterica subsp. enterica serovar Typhimurium strain LT2-LTL2, Salmonella typhimurium LT2
Server load: medium (60%) [HD]
STRING is a Core Data Resource as designated by Global Biodata Coalition and ELIXIR.