B7-1/CD80 Protein, Rat (HEK293, His)

B7-1/CD80 Protein, Rat (HEK293, His) is not only expressed on APCs, but also is expressed on T cells. B7-1:PD-L1 interaction can inhibit T cell proliferation and cytokine production^[1].

B7-1 and PD-L1 interact with an affinity intermediate to that of B7-1:CD28 and B7-1:CTLA-4. The PD-L1:B7-1 interface overlaps with the B7-1:CTLA-4 and PD-L1:PD-1 interfaces. B7-1:PD-L1 interaction can inhibit T cell proliferation and cytokine production^[1].

Rat

HEK293

C-6*His

O35187 (V30-Q248)

25408  [NCBI]

Partial

VGLFQISSGIVGQVSKSVREKALLSCDYKFCSEEQSIHRIYWQKHDKMVLSVISGVPEVWPEYKNRTVYDIANNYSFSLLGLILSDRGTYTCVVQRYEGESYVVKHLTTVELSVRADFPTPNITESGNPSADIKRITCFASGGFPKPRLSWLENGRELNGINTTISQDPESELYTISSQLDFNTTYDHFIDCFIEYGDAHVSQNFTWVKPPEDPPDEKQ

38-60 kDa

• 
  ≥ 95%, as determined by reducing SDS-PAGE.

Lyophilized powder.

Lyophilized from a 0.22 μm filtered solution of PBS, 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. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).

Stored at -20°C for 2 years from date of receipt. 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.

• [1]. Manish J Butte, et al. Programmed death-1 ligand 1 interacts specifically with the B7-1 costimulatory molecule to inhibit T cell responses. Immunity. 2007 Jul;27(1):111-22.  [Content Brief]