Table 1. Distribution of crustin signatures.

Crustin signatures can be found in different proteins from the same species and in crustins from different species. Most cases are observed in species whose genome has been sequenced.

Signature	Shrimp	Freq
008	Penaeus paulensis	1
	Penaeus subtilis	1
137	Penaeus chinensis	1
	Penaeus monodon	4
108	Penaeus setiferus	1
	Penaeus vannamei	4
132	Penaeus chinensis	5
	Penaeus monodon	2
	Penaeus vannamei	3
176	Penaeus chinensis	8
	Penaeus monodon	10
	Penaeus vannamei	18