蛋白 L 蛋白, Finegoldia magna (Biotinylated, HEK293, His-Avi)

L protein is derived from *Peptostreptococcus* and selectively binds to the immunoglobulin kappa light chain without interacting with the Fc region. This property can be used in antibody purification, diagnostics, and research to selectively isolate antibodies based on their light chain composition. Protein L Protein, Finegoldia magna (Biotinylated, HEK293, His-Avi) is the recombinant protein L protein, expressed by HEK293 , with N-His, N-Avi labeled tag. The total length of Protein L Protein, Finegoldia magna (Biotinylated, HEK293, His-Avi) is 365 a.a., with molecular weight of ~50 kDa.

L 蛋白是一种细菌免疫球蛋白结合蛋白，由*大消化链球菌*产生。它特异性结合免疫球蛋白 (Ig) 的 kappa 轻链，不与 Fc 区相互作用。L 蛋白可应用于抗体纯化、诊断和研究，它能够根据轻链组成选择性分离抗体。这种独特的特性使 Protein L 成为涉及抗体操作和分析的各种生物技术和生物医学应用中的宝贵工具。

Measured by its binding ability in a functional ELISA. Immoilized Ipilimumab antibody at 2 μg/mL can bind Biotinylated Protein L. The EC ₅₀ is 1.123-1.761 ng/mL.

Others

HEK293

N-His;N-Avi

D6S9W1 (K106-G470)

/

Approximately 50 kDa

Greater than 95% as determined by reducing SDS-PAGE.

无菌粉末

Lyophilized a 0.22 μm filtered solution of PBS, 6% Trehalose, pH 7.4.

<1 EU/μg, determined by LAL method.

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH₂O.

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Room temperature in continental US; may vary elsewhere.