کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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2048159 | 1074067 | 2011 | 6 صفحه PDF | دانلود رایگان |
Iron–sulfur cluster biosynthesis in Gram-positive bacteria is mediated by the SUF system. The transfer of sulfide from the cysteine desulfurase SufS to the scaffold protein SufU is one of the first steps within the assembly process. In this study, we analyzed the interaction between Bacillus subtilis SufS and its scaffold SufU. The activity of SufS represents a Ping-Pong mechanism leading to successive sulfur loading of the conserved cysteine residues in SufU. Cysteine 41 of SufU is shown to be essential for receiving sulfide from SufS, while cysteines 66 and 128 are needed for SufS/SufU interaction. In conclusion, we present the first step-by-step model for loading of the essential scaffold component SufU by its sulfur donor SufS.Structured summarySufS and SufUbind by molecular sieving(View interaction)SufSbinds to SufS by molecular sieving(View interaction)SufS and SufUredox react by enzymatic study (View Interaction 1, 2, 3, 4, 5)SufUphysically interacts with SufS by pull down (View Interaction 1, 2)
Journal: FEBS Letters - Volume 585, Issue 3, 4 February 2011, Pages 465–470