. 2015 Sep 28;10(9):e0139086. doi: 10.1371/journal.pone.0139086

Table 1. Secondary structure estimation from the synchrotron radiation CD spectrum of Stl and comparison to the homology model.

	BeStSel		CONTIN
	CD analysis ^a	Model ^b	CD analysis ^a	Model ^b
Helix1	44.6	40.0	44.5	42.5
Helix2	23.0	21.4	18.8	21.4
β-sheet	3.6	0.0	6.3	0.0
Turn	8.4	7.5	9.0	10.4
Others	20.5	31.1	21.4	25.7
Number of helices	16	15	13	15
Average helix length	11.8	11.5	13.5	11.9

^aThe secondary structure composition from the CD spectrum was estimated by the BeStSel and CONTIN algorithms. The two algorithms use different secondary structure components, however, the overall helix, β-sheet and turn+others contents are comparable.

^bThe secondary structure contents were also calculated for the Phyre2 homology model using the DSSP algorithm [46] and the BeStSel and CONTIN definitions [47,48].