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
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Textmining
[Homology]
Score
top-2DNA topoisomerase 2 top-2; Control of topological states of DNA by transient breakage and subsequent rejoining of DNA strands. Topoisomerase II makes double- strand breaks (By similarity). Essential during mitosis in the adult germline and during embryogenesis for proper segregation of daughter chromosomes. Required for centromere resolution during mitosis. Required for chromosome segregation in anaphase of meiosis I during spermatogenesis. Promotes cleavage furrow stability during cytokinesis upon the presence of chromatin obstructions. Promotes DNA break formation upon zygotic genome [...] (1520 aa)    
Predicted Functional Partners:
top-1
DNA topoisomerase 1; Releases the supercoiling and torsional tension of DNA 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-(3'-phosphotyrosyl)- enzyme intermediate and the expulsion of a 5'-OH DNA strand. The free DNA strand then rotates around the intact phosphodiester bond on the opposing strand, thus remo [...]
   
 
 0.989
smo-1
Small ubiquitin-related modifier; Ubiquitin-like protein which can be covalently attached to target lysines as a monomer. Does not seem to be involved in protein degradation and may function as an antagonist of ubiquitin in the degradation process. Plays a role in a number of cellular processes such as nuclear transport, DNA replication and repair, mitosis and signal transduction. Covalent attachment to its substrates requires prior activation by the E1 complex aos-1-uba-2 and linkage to the E2 enzyme ubc-9, and can be promoted by an E3 ligase such as gei-17. Required for embryonic dev [...]
   
 0.943
tdpt-1
5'-tyrosyl-DNA phosphodiesterase; DNA repair enzyme that can remove a variety of covalent adducts from DNA through hydrolysis of a 5'-phosphodiester bond, giving rise to DNA with a free 5' phosphate. Catalyzes the hydrolysis of dead- end complexes between DNA and the topoisomerase 2 (top2) active site tyrosine residue. Hydrolyzes 5'-phosphoglycolates on protruding 5' ends on DNA double-strand breaks (DSBs) due to DNA damage by radiation and free radicals; Belongs to the CCR4/nocturin family. TTRAP/TDP2 subfamily.
   
  
 0.893
ubc-9
SUMO-conjugating enzyme UBC9; Accepts the ubiquitin-like protein smo-1 from the aos-1-uba-2 E1 complex and catalyzes its covalent attachment to other proteins with the help of an E3 ligase such as gei-17. Required to sumoylate the ETS transcription factor lin-1 and the Polycomb protein sop-2. Required for embryonic development, fertility, vulval morphogenesis and inhibition of vulval cell fates. Belongs to the ubiquitin-conjugating enzyme family.
   
 0.863
top-3
DNA topoisomerase 3; Releases the supercoiling and torsional tension of DNA 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 than undergoes passage around the unbroken strand thus removing DNA supercoils. Fina [...]
   
  
 0.851
gcna-1
SprT-like domain-containing protein.
   
  
 0.851
mix-1
Mitotic chromosome and X-chromosome-associated protein mix-1; Essential protein required for both chromosome condensation and segregation and X-chromosome dosage compensation depending on its binding partners. Central component of the condensin I complex, a complex required for conversion of interphase chromatin into mitotic-like condense chromosomes. The condensin complex introduces positive supercoils into relaxed DNA in the presence of type I topoisomerases. Converts nicked DNA into positive knotted forms in the presence of type II topoisomerases (By similarity). Central component o [...]
   
 
 0.839
mcm-7
DNA replication licensing factor MCM7; Acts as component of the mcm2-7 complex (mcm complex) which is the putative replicative helicase essential for 'once per cell cycle' DNA replication initiation and elongation in eukaryotic cells. The active ATPase sites in the mcm2-7 ring are formed through the interaction surfaces of two neighboring subunits such that a critical structure of a conserved arginine finger motif is provided in trans relative to the ATP-binding site of the Walker A box of the adjacent subunit. The six ATPase active sites, however, are likely to contribute differential [...]
   
  
 0.825
spo-11
Meiotic recombination protein spo-11; Required for meiotic recombination. Mediates DNA cleavage that forms the double-strand breaks (DSB) that initiate meiotic recombination.
     
 0.822
smc-5
Structural maintenance of chromosomes protein 5; Core component of the smc-5/smc-6 complex. Functions in DNA double strand break repair by promoting sister- chromatid homologous recombination during meiosis. Acts in a DNA repair pathway for removal of ionizing radiation- and ultraviolet (UV) radiation-induced DNA lesions that is distinct from classical nucleotide excision repair and the translesion synthesis pathway. Also involved in the recovery of stalled replication forks. Belongs to the SMC family. SMC5 subfamily.
   
 
 0.815
Your Current Organism:
Caenorhabditis elegans
NCBI taxonomy Id: 6239
Other names: C. elegans, Rhabditis elegans, roundworm
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