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
hppAPyrophosphatase; Proton pump that utilizes the energy of pyrophosphate hydrolysis as the driving force for proton movement across the membrane. Generates a proton motive force. (707 aa)    
Predicted Functional Partners:
thiL
Thiamine-monophosphate kinase; Catalyzes the ATP-dependent phosphorylation of thiamine- monophosphate (TMP) to form thiamine-pyrophosphate (TPP), the active form of vitamin B1; Belongs to the thiamine-monophosphate kinase family.
       0.651
AJR24071.1
Peptidase; Derived by automated computational analysis using gene prediction method: Protein Homology.
       0.528
nusB
Antitermination protein NusB; Involved in transcription antitermination. Required for transcription of ribosomal RNA (rRNA) genes. Binds specifically to the boxA antiterminator sequence of the ribosomal RNA (rrn) operons.
       0.513
ppa
Inorganic pyrophosphatase; Catalyzes the hydrolysis of inorganic pyrophosphate (PPi) forming two phosphate ions.
     
 0.475
AJR24062.1
Riboflavin biosynthesis protein RibD; Derived by automated computational analysis using gene prediction method: Protein Homology.
       0.473
topA
DNA topoisomerase I; Releases the supercoiling and torsional tension of DNA, which is introduced during the DNA replication and transcription, by transiently cleaving and rejoining one strand of the DNA duplex. Introduces a single-strand break via transesterification at a target site in duplex DNA. The scissile phosphodiester is attacked by the catalytic tyrosine of the enzyme, resulting in the formation of a DNA- (5'-phosphotyrosyl)-enzyme intermediate and the expulsion of a 3'-OH DNA strand. The free DNA strand then undergoes passage around the unbroken strand, thus removing DNA supe [...]
       0.473
AJR22884.1
Fumarate hydratase; Catalyzes the reversible hydration of fumarate to (S)-malate. Belongs to the class-I fumarase family.
      
 0.445
AJR22624.1
Siroheme synthase; Derived by automated computational analysis using gene prediction method: Protein Homology.
      
 0.422
AJR24962.1
uroporphyrin-III methyltransferase; Derived by automated computational analysis using gene prediction method: Protein Homology.
      
 0.422
ribB
3,4-dihydroxy-2-butanone 4-phosphate synthase; Catalyzes the conversion of D-ribulose 5-phosphate to formate and 3,4-dihydroxy-2-butanone 4-phosphate; Belongs to the DHBP synthase family.
       0.407
Your Current Organism:
Sphingobium sp. YBL2
NCBI taxonomy Id: 484429
Other names: S. sp. YBL2
Server load: medium (46%) [HD]