Table 2.

Presence of novel and rare motifs in the five architectures.

	Kn	YnSKn	YnKn	SKn	KnS
All	98	254	45	216	33
GT-motif	50	254	37	52	13
SK-segment	n/a	217	n/a	37	n/a
Lys-rich	7	6	6	154	33
His-rich	1	3	0	7	0