分子别名（Synonym）:LEPD,OB,OBS种属（Species）：Human表达系统（Expressed Host）：E. coli制剂（Buffer）：Lyophilized from sterile PBS, pH 7.4分子量（Molecule Mass）：The recombinant human leptin consists of 147 amino acids and predicts a molecular mass of 16 kDa. The apparent molecular mass of rhLEP is approximately 13 kDa in SDS-PAGE under reducing conditions.内毒素（Endotoxin）：＜1.0 EU per μg by the LAL method.生物活性(Activity)：Measured by its binding ability in a functional ELISA表达区间（Protein Construction）：A DNA sequence encoding the mature form of human Leptin (NP_000221.1) (Val 22-Cys 167) was expressed, with an additional Met.存储条件（Storage）：For long term storage, the product should be stored at lyophilized state at -20℃ or lower.Please avoid repeated freeze-thaw cycles. No activity loss is observed after storage at:4-8℃ for 12 months in lyophilized state;-70℃ for 3 months under sterile conditions after reconstitution.运输条件：In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.