Figure 1.

Protein sequence alignment of MthNTA-MoB (PDB entry 3nfw) with other short-chain flavin reductases. The secondary-structural elements of 3nfw are indicated and labelled above the aligned sequences. The similarity levels for each of the amino-acid positions are indicated using a grayscale, where darker shades indicate a higher degree of conservation. Strictly conserved residues are shown in black, while lighter grays and white indicate various degrees of low conservation and no conservation, respectively. Conserved residues shared with other short-chain flavin reductases are marked with an asterisk at the bottom of the column. Color legend for sequence identity: green, conserved; yellow, similar; red, unconserved. Details of the proteins aligned with 3nfw are shown in Table 3 ▶.