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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
iscSCysteine desulfurase; Master enzyme that delivers sulfur to a number of partners involved in Fe-S cluster assembly, tRNA modification or cofactor biosynthesis. Catalyzes the removal of elemental sulfur atoms from cysteine to produce alanine. Functions as a sulfur delivery protein for Fe-S cluster synthesis onto IscU, an Fe-S scaffold assembly protein, as well as other S acceptor proteins; Belongs to the class-V pyridoxal-phosphate-dependent aminotransferase family. NifS/IscS subfamily. (405 aa)    
Predicted Functional Partners:
iscU
Iron-sulfur cluster assembly protein IscU; A scaffold on which IscS assembles Fe-S clusters. It is likely that Fe-S cluster coordination is flexible as the role of this complex is to build and then hand off Fe-S clusters.
 
 0.999
fdxB
2Fe-2S ferredoxin; Function of strongly homologous gene; carrier.
 
 0.986
NIDE2748
Putative Sulfurtransferase TusA; Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; putative enzyme; Belongs to the sulfur carrier protein TusA family.
   
 0.984
NIDE4165
Putative Sulfurtransferase TusA; Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; putative enzyme; Belongs to the sulfur carrier protein TusA family.
   
 0.984
thiI
Putative Thiamine biosynthesis protein ThiI; Catalyzes the ATP-dependent transfer of a sulfur to tRNA to produce 4-thiouridine in position 8 of tRNAs, which functions as a near-UV photosensor. Also catalyzes the transfer of sulfur to the sulfur carrier protein ThiS, forming ThiS-thiocarboxylate. This is a step in the synthesis of thiazole, in the thiamine biosynthesis pathway. The sulfur is donated as persulfide by IscS.
 
 0.979
moeB
Molybdopterin biosynthesis protein MoeB; Function of homologous gene experimentally demonstrated in an other organism; enzyme.
   
 0.973
thiF
Adenylyltransferase ThiF; Function of homologous gene experimentally demonstrated in an other organism; enzyme.
   
 0.973
NIDE4023
Putative Transcription factor IscR; Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; putative regulator.
  
  
 0.955
hscB
Co-chaperone protein HscB (Hsc20); Function of strongly homologous gene; factor.
 
 
 0.954
NIDE3220
Putative 3-mercaptopyruvate sulfurtransferase; Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; putative enzyme.
  
 0.923
Your Current Organism:
Nitrospira defluvii
NCBI taxonomy Id: 330214
Other names: Candidatus Nitrospira defluvii, LMG 27402, LMG:27402, N. defluvii, NCIMB 14950, strain A17
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