(        10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220 )
	|         |         |         |         |         |         |         |         |         |         |         |         |         |         |         |         |         |         |         |         |         |
CD28 human	-MLRLLLALNLFPSIQVTGNKILVKQSPMLVAYDNAVNLSCKYSYNLFSREFRASLHKGLDSAVEVCVVYGNYSQQLQVYSKTGFNCDGKLGNESVTFYLQNLYVNQTDIYFCKIEVMYPPPYLDNEKSNGTIIHVkGKHLCPSPLFPGPSKPFWVLVVVGGVLACYSLLVTVAFIIFWVRSKRSRLLHsDyMNMtPRRPGPTRkHyQPyAPPRDFAAyRs
CD28 iso7 human
CD28 mouse	MTLRLLFLALNFFSVQVTENKILVKQSPLLVVDSNEVSLSCRYSYNLLAKEFRASLYKGVNSDVEVCVGNGNFTYQPQFRSNAEFNCDGDFDNETVTFRLWNLHVNHTDIYFCKIEFMYPPPYLDNERSNGTIIHIKEKHLCHTQS---SPKLFWALVVVAGVLFCYGLLVTVALCVIWTNSRRNRLLQSDyMNMTPRRPGLTRKPYQPyAPARDFAAYRP
CD28 rat
	.:****:::::*:*:***:*********:**:::*:*:***:*****:::******:**::*:*****::**:::*:*::*:::*****:::**:***:*:**:**:*********:**********:*******:*:****::::...::*:**:****:***:**:******::::*::*:*:***:************:***:******:*******:
Consensus	MMLRLLLAANNFFSIQVTENKILVKQSPLLVADDNAVNLSCRYSYNLLAREFRASLHKGLNSAVEVCVGNGNFSQQLQFRSNAEFNCDGDLDNESVTFRLQNLHVNQTDIYFCKIEFMYPPPYLDNERSNGTIIHIKEKHLCHSQLFPGPPKLFWALVVVAGVLACYGLLVTVALCIIWTRSRRNRLLQSDYMNMTPRRPGLTRKHYQPYAPARDFAAYRP