Fig. 2.
Pairwise alignment of CH3H and F3′H amino acid sequences from C. sulphureus (Accession nos FJ216429 and FJ216426). Alignment was performed with ClustalW (Thompson et al., 1994, 2002). Grey-shaded boxes highlight substrate recognition site 1 (SRS1: Gotoh, 1992) and conserved P450 patterns. I, Hydrophobic membrane anchor; II, proline-rich hinge [PI]-P-G-P-X-[GP]-P (Kemper, 2004); III, oxygen-binding motif [AG]-G-X-[ED]-T-[TS]; IV, EXXR triad (Ravichandran et al., 1993); V, the P450-pattern [FW]-[SNGH]-X-[GD]-{F}-[RKHPT]-{P}-C-[LIVMFAP]-[GAD] (Prosite pattern PS00086; Hulo et al., 2006).