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iscS iscS iscU iscU thiI thiI hscB hscB PFL_1453 PFL_1453 tusA tusA PFL_5157 PFL_5157 fdx fdx iscA iscA iscR iscR cyaY cyaY
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query proteins and first shell of interactors
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second shell of interactors
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proteins of unknown 3D structure
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textmining
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protein homology
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iscSCysteine desulfurase IscS; 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. (404 aa)    
Predicted Functional Partners:
iscU
FeS cluster assembly scaffold 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.
 
 0.998
thiI
Thiamine biosynthesis/tRNA modification 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
hscB
Fe-S protein assembly co-chaperone HscB; Co-chaperone involved in the maturation of iron-sulfur cluster-containing proteins. Seems to help targeting proteins to be folded toward HscA; Belongs to the HscB family.
 
 
 0.971
PFL_1453
Conserved hypothetical protein; Identified by match to protein family HMM PF01206; Belongs to the sulfur carrier protein TusA family.
   
 0.965
tusA
Sulfurtransferase TusA; Sulfur carrier protein which probably makes part of a sulfur- relay system; Belongs to the sulfur carrier protein TusA family.
   
 0.965
PFL_5157
ThiF/MoeB domain protein; Identified by similarity to SP:P12282; similarity to SP:P30138; match to protein family HMM PF00899; match to protein family HMM PF05237.
   
 0.961
fdx
Ferredoxin, 2Fe-2S type, ISC system; Identified by similarity to SP:P0A9R4; match to protein family HMM PF00111; match to protein family HMM TIGR02007.
 
 0.958
iscA
Iron-sulfur cluster assembly protein IscA; Is able to transfer iron-sulfur clusters to apo-ferredoxin. Multiple cycles of [2Fe2S] cluster formation and transfer are observed, suggesting that IscA acts catalytically. Recruits intracellular free iron so as to provide iron for the assembly of transient iron-sulfur cluster in IscU in the presence of IscS, L-cysteine and the thioredoxin reductase system; Belongs to the HesB/IscA family.
 
  
 0.949
iscR
Iron-sulfur cluster assembly transcription factor IscR; Regulates the transcription of several operons and genes involved in the biogenesis of Fe-S clusters and Fe-S-containing proteins.
 
  
 0.936
cyaY
Iron donor protein CyaY; Involved in iron-sulfur (Fe-S) cluster assembly. May act as a regulator of Fe-S biogenesis.
  
 0.931
Your Current Organism:
Pseudomonas protegens
NCBI taxonomy Id: 220664
Other names: P. protegens Pf-5, Pseudomonas fluorescens Pf-5, Pseudomonas protegens Pf-5, Pseudomonas protegens str. Pf-5, Pseudomonas protegens strain Pf-5, Pseudomonas sp. Pf-5
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