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.
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query proteins and first shell of interactors
white nodes:
second shell of interactors
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empty nodes:
proteins of unknown 3D structure
filled nodes:
a 3D structure is known or predicted
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Edges represent protein-protein associations
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[Homology]
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iscSIscS subfamily cysteine 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. (386 aa)    
Predicted Functional Partners:
sirA
Sulfurtransferase TusA; Sulfur carrier protein involved in sulfur trafficking in the cell. Part of a sulfur-relay system required for 2-thiolation during synthesis of 2-thiouridine of the modified wobble base 5- methylaminomethyl-2-thiouridine (mnm(5)s(2)U) in tRNA. Interacts with IscS and stimulates its cysteine desulfurase activity. Accepts an activated sulfur from IscS, which is then transferred to TusD, and thus determines the direction of sulfur flow from IscS to 2-thiouridine formation. Also appears to be involved in sulfur transfer for the biosynthesis of molybdopterin.
   
 0.996
iscR
Fe-S cluster assembly transcriptional regulator IscR; Regulates the transcription of several operons and genes involved in the biogenesis of Fe-S clusters and Fe-S-containing proteins.
  
  
 0.989
thiI
tRNA 4-thiouridine(8) synthase 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.
  
 0.985
nfuA
Fe-S biogenesis protein NfuA; Involved in iron-sulfur cluster biogenesis. Binds a 4Fe-4S cluster, can transfer this cluster to apoproteins, and thereby intervenes in the maturation of Fe/S proteins. Could also act as a scaffold/chaperone for damaged Fe/S proteins.
  
 0.977
DSJ_09215
Molybdopterin-synthase adenylyltransferase MoeB; Derived by automated computational analysis using gene prediction method: Protein Homology.
   
 0.977
sufA
Fe-S cluster assembly scaffold SufA; Derived by automated computational analysis using gene prediction method: Protein Homology; Belongs to the HesB/IscA family.
 
 
 0.944
sseA
3-mercaptopyruvate sulfurtransferase; Derived by automated computational analysis using gene prediction method: Protein Homology.
  
 0.936
dnaK
Molecular chaperone DnaK; Acts as a chaperone; Belongs to the heat shock protein 70 family.
 
 0.866
erpA
Iron-sulfur cluster insertion protein ErpA; Required for insertion of 4Fe-4S clusters for at least IspG.
 
 
 0.831
yfaE
2Fe-2S ferredoxin; Plays a role in maintenance and possibly the biosynthesis of diferric-tyrosyl radical cofactor, essential for nucleotide reduction catalyzed by ribonucleotide reductases; Derived by automated computational analysis using gene prediction method: Protein Homology.
  
 0.782
Your Current Organism:
Pantoea stewartii
NCBI taxonomy Id: 660596
Other names: P. stewartii subsp. stewartii DC283, Pantoea stewartii subsp. stewartii DC283, Pantoea stewartii subsp. stewartii str. DC283, Pantoea stewartii subsp. stewartii strain DC283
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