The occurrence of progesterone 5β-reductase is not limited to the angiosperms: a functional gene was identified in Picea sitchensis and expressed in Escherichia coli

New Zealand Journal of Forestry Science

Table 1 Picea protein motifs (I–VIII) compared to the consensus P5βR sequence and a sequence from Digitalis lanata (DlP5ßR)

Amino acid variations amongst Picea proteins and to DlP5βR are indicated in bold. In the motifs, “c” denotes a charged residue, “h” a hydrophobic residue, “p” a polar residue, and “x” any possible residue
^aPerez-Bermudez et al. 2010