Recombinant Human LAG3 Protein, Met-tagged, Alexa Fluor 555 conjugated

• Cat.No.: LAG3-467HAF555
• Product Overview: Alexa Fluor 555 conjugated recombinant human LAG3 (P18627) (Met1-Arg440) was expressed with an initial Met.

Specification

• Species: Human
• Source: HEK293
• Protein Length: Met1-Arg440， 412
• Description: LAG3, also known as CD223 and Lymph centigradeyte activation gene 3, belongs to immunoglobulin (Ig) superfamily. LAG3 contains 4 extracellular Ig-like domains. The LAG3 gene contains 8 exons. It is selectively expressed in activated T and NK cells. LAG3 has a negative regulatory function in T cells. It also acts as as a new marker of T cell induced B cell activation. As a soluble molecule, LAG3 activates antigen-presenting cells through MHC class II signalling, leading to increased antigen-specific T-cell responses in vivo.
• Form: Lyophilized
• Molecular Mass: 44.7 kDa
• N-terminal Sequence Analysis: Val 29
• Endotoxin: < 1.0 EU/ μg protein as determined by the LAL method.
• Purity: > 90 % as determined by SDS-PAGE
• Characteristic: Disulfide-linked homodimer
  Labeled with Alexa Fluor 555 via amines
  With an excitation and emission maximum of 555/565 nm, Alexa Fluor 555 can be efficiently excited using a 543 nm He-Ne laser line and detected under standard TRITC/Cy3 filters.
• Storage: Samples are stable for up to twelve months from date of receipt at -70 centigrade. Store it under sterile conditions at -20 to -80 centigrade. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
• Storage Buffer: Lyophilized from sterile PBS,pH 7.4. Normally 5%-8% trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization.
• Reconstitution: It is recommended that sterile water be added to the vial to prepare a stock solution of 0.2 μg/μL. Centrifuge the vial at 4 centigrade before opening to recover the entire contents.

Gene Information

• Gene Name: LAG3 lymphocyte-activation gene 3 [ Homo sapiens ]
• Official Symbol: LAG3
• Synonyms: LAG3; lymphocyte-activation gene 3; lymphocyte activation gene 3 protein; CD223
• Gene ID: 3902
• mRNA Refseq: NM_002286
• Protein Refseq: NP_002277
• MIM: 153337