Active Recombinant Human ITGA4&ITGB1 protein, His-tagged

• Cat.No.: ITGA4&ITGB1-1571H
• Product Overview: Recombinant Human ITGA4&ITGB1 protein(Tyr34-Thr977(ITGA4)&Gln21-Asp728(ITGB1)), fused with His tag, was expressed in HEK293.

Specification

• Source: HEK293
• Species: Human
• Tag: His
• Form: Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 150 mM NaCl, pH7.5.
• Bio-activity: Immobilized Natalizumab at 1 μg/mL (100 μL/well) can bind Human ITGA4&ITGB1 Heterodimer Protein, His Tag&Tag Free with a linear range of 1-16 ng/mL.
• Molecular Mass: Human ITGA4&ITGB1 Heterodimer Protein, His Tag&Tag Free, produced by co-expression of ITGA4 and ITGB1, has a calculated MW of 111.4 kDa (ITGA4) and 83.7 kDa (ITGB1). Subunit ITGA4 is fused with an acidic tail at the C-terminus and followed by a polyhistidine tag and subunit ITGB1 contains no tag but a basic tail at the C-terminus. The ITGA4 subunit is composed of a heavy chain (Tyr 34 - Arg 591, calculated MW 61.1 kDa) and a light chain (Ser 592 - Thr 977, calculated MW 50.1 kDa). Consequently ITGA4 migrates as 60-70 kDa, 80-85 kDa and 135-150 kDa, and ITGB1 as 100-133 kDa respectively under reducing (R) condition due to cleavage and glycosylation.
• Proteinlength: Tyr34-Thr977(ITGA4)&Gln21-Asp728(ITGB1)
• Endotoxin: Less than 1.0 EU per μg by the LAL method.
• Purity: >90% as determined by SDS-PAGE.
• Storage: For long term, the product should be stored at lyophilized state at -20°C or lower.Please avoid repeated freeze-thaw cycles. This product is stable after at:
  -20°C to -70°C for 12 months in lyophilized state; -70°C for 3 months under sterile conditions after reconstitution.
• Reconstitution: It is recommended that sterile water be added to the vial to prepare a stock solution of 0.2 ug/ul. Centrifuge the vial at 4°C before opening to recover the entire contents.

Gene Information

• Gene Name: ITGA4 integrin, alpha 4 (antigen CD49D, alpha 4 subunit of VLA-4 receptor) [ Homo sapiens ]
• Official Symbol: ITGA4
• Synonyms: ITGA4; integrin, alpha 4 (antigen CD49D, alpha 4 subunit of VLA-4 receptor); CD49D; integrin alpha-4; CD49d; 269C wild type; integrin alpha 4; integrin alpha-IV; VLA-4 subunit alpha; integrin alpha-4 subunit; CD49 antigen-like family member D; antigen CD49D, alpha-4 subunit of VLA-4 receptor; very late activation protein 4 receptor, alpha 4 subunit; IA4; MGC90518
• Gene ID: 3676
• mRNA Refseq: NM_000885
• Protein Refseq: NP_000876
• MIM: 192975
• UniProt ID: P13612