胎牛血清（标准级） 本品有促细胞生长作用及产品稳定性，经过三次0.1微米过滤，具有无菌、无支原体、无特异性抗体、低内毒素等特点，满足部分科研和工业生产的需要。

优级胎牛血清，血清 本品有的促细胞生长作用及产品稳定性，经过三次0.1微米过滤，具有无菌、无噬菌体、无支原体、无特异性抗体、低内毒素、促细胞生长优良等特点。

胎牛血清（优级） 本品有的促细胞生长作用及产品稳定性，经过三次0.1微米过滤，具有无菌、无支原体、无特异性抗体、低内毒素、促细胞生长优良等特点。

Recombinant Rat HER2 Protein(C-6His) is produced by our E.coli expression system and the target gene encoding Ala67-Val323 is expressed with a 6His tag at the C-terminus.

Recombinant Mouse Siglec-3 Protein(C-6His) is produced by our Mammalian expression system and the target gene encoding Asp18-Glu240 is expressed with a 6His tag at the C-terminus.

Recombinant Mouse PD-1 Protein(C-Fc) is produced by our Mammalian expression system and the target gene encoding Leu25-Gln167 is expressed with a Fc tag at the C-terminus.

Recombinant Mouse PD-1 Protein(C-6His) Recombinant Mouse Programmed Cell Death Protein 1 is produced by our Mammalian expression system and the target gene encoding Leu25-Gln167 is expressed with a 6H

Recombinant Mouse PD-L2 Protein(C-Fc) is produced by our Mammalian expression system and the target gene encoding Leu20-Arg219 is expressed with a Fc tag at the C-terminus.