Immunogen sequence: LAGLVPPGSP GPITRHGSYD SLASDHSGQE DEEWLSQVEI VTHTGPHRRL WMGPQFQFKT IHPSGQTTVI SSSSSVLQSH GPSDTPQPLL DFDTDDLDLN SLRIQPVRSD PVSMPGSSRP VSDRRGVSTV IDAASGTFDR SVTLLEVCGS WPEGFGLRHM SSMEHTEEGL RERLADAMAE SPSRDVVGSG TELQREGSIE TLSNSSGSTS GSI