Thanks for your interests in our products, the CLDN18 of CSB-CF005498HU is 18.1 vision, if you need the 18.2 vision, please order the CSB-CF005498HU(A5). The detail is listed as follow:Recombinant Human Claudin-18(CLDN18)
Express Region:1-261aa; full length protein, we do the Isoform A2
Tag information: The tag type will be determined during the manufacturing process.
Target protein sequence: (The complete sequence including tag sequene and any linker sequence will be shown on the COA report)