. 2017 Jun 23;17:148. doi: 10.1186/s12862-017-0994-z

Table 2.

Lengths of Irs proteins from representative vertebrate speceis

Protein	Human	Mouse	Snake^a	Chicken	Xenopus	Coelacanth	Gar^a	Zebrafish a	Zebrafish b	Shark^b
Irs1	1242	1231	1186	1178	1091	1076	>1085^c	1099	NA^b	1099
Irs2	1338	1321	1105	1148	1006	1069	1069	1032	1062	>1082
Irs3	NA^b	495	662	NA^b	809	1034	NA^b	1181	1245	NA^b
Irs4	1257	1216	1191	1164	1077	NA^b	1120	1158	1051	1200

^aSnake is garter snake; Gar is spotted gar; Shark is elephant shark

^bNA, not applicable, gene was not found, incomplete, or absent

^cSpotted gar Irs1 is missing part of its C-terminus; Elephant shark Irs2 is missing part of its N-terminus