The original sRAGE expression vector was constructed with PCR
amplification of the coding sequence of human RAGE (reference
sequence:NM_001136) from residue 23 to 340 (i.e. the ectodomain
of RAGE) followed with a stop codon. The amplified fragment was
then cloned to the pcDNA 3.1 (zeo+)-based pJP008 membranetargeting
vector, which contains the RAGE signal peptide sequence
and renders the expressed membrane protein to be tagged with a
T7 epitope tag at its N-terminus [26]. The diagram of T7 tagged
sRAGE is illustrated in Fig. 1.