P35 蛋白

Application Note: p35 is suitable as a control in immunological assays. Specific conditions for reactivity should be optimized by the end user. Expect a band at 69.5 kDa for p35-MBP, (27.1 kDa for p35 and 42.4 kDa for MBP) in size corresponding to p35 by Western blotting in the appropriate cell lysate or extract. p35 kDa protein has been tested in SDS-PAGE and WB.

Western Blot Dilution: User Optimized

ELISA Dilution: User Optimized

Other: Lateral Flow Assay: User Optimized

Buffer: 0.02 M Potassium Phosphate, 0.15 M Sodium Chloride, pH 7.2

Stabilizer: None

Synonyms: bba64, Borrelia burgdorferi p35, control protein

Background: The p35 kDa protein of the spirochete Borrelia burgdorferi is being investigated for use as an early diagnostic marker of Lyme Disease. Borrelia may change its antigenic composition in its need for adaptation to stresses imposed by changes in conditions from cycling between its arthropod and mammalian hosts. This group of B. burgdorferi proteins may be induced in the tick midgut during the feeding event. The p35 protein elicits a protective immunity from wild type B. burgdorferi. It has been shown that p35 expression in B. burgdorferi is upregulated in the stationary growth phase, and that a temperature of 34 °C but not 24 °C influenced the expression. The expression of a majority of the proteins expressed in early Lyme disease is affected pH , being abundantly expressed at pH 7.0 (resembling the tick midgut pH of 6.8 during feeding) but only sparsely at pH 8.0 (a condition closer to that of the unfed tick midgut pH of 7.4). The encoding genes may be coregulated. The 35- kDa antigen has been shown to be a statistically significant marker in IgG immunoblots in a study of patients with early Lyme disease who presented with erythema migrans. Recombinant p35 protein may be useful as a diagnostic reagent, especially in combination with other antigens that have been deemed relevant in serodiagnosis of early Lyme disease. Lyme disease proteins are ideal for researchers interested in immunology, neurology, rheumatology, coinfections, autoimmune, and neurodegenerative diseases.