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Example sentences for: ec-
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MoeB, exemplified by Ec-MoeB, and MoeBR, exemplified by cnxF of Aspergillis nidulans [ 16 ] , participate in the synthesis of MPT-Mo as MSAEs.
All of the predicted amino acid sequences except Ec-MoeB, Mlo-MoeZdR, and Pa-MoeB also have C-terminal similarity (BLAST E value < 1 -12) to a rhodanese-like domain (Pfam00581) (Figure 2c, Table 2) [ 26 ] . Rhodanese, a thiosulfate:cyanide sulfurtransferase (EC 2.8.
All 12 sequences in this region have high similarity to the derived consensus sequence GXGXXG(7X)A(SX)GXGXXG(4X)D(9X)R, which defines a nucleotide binding motif [ 16 25 ] . In addition, all sequences have five residues, or conservative substitutions in the case of Pa-MoeB, shown to participate in the adenylation reaction catalyzed by Ec-MoeB (Figure 3) [ 7 ] . The fact that such high similarities are retained in the ThiF coding region across three bacterial divisions suggests that this domain functions more or less autonomously.
Ec-MoeB, Mt-MoeBR, Pa-MoeB, Pa-MoeBR, and Sc-MoeBR all contain two pairs of cysteine residues, each arranged in a CXXC motif and spaced 68-70 residues apart, like those in ThiF proteins (arrows in Figures 2cand 3).
MoeB, as represented by the functionally characterized Ec-MoeB, consists of an N-terminal ThiF domain followed by a 2X CXXC domain with both CXXC pairs intact and no rhodanese-like domain.
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