CRASP-2 Polyclonal Antibody, Rockland™

Rabbit Polyclonal Antibody

Catalog Number	Mfr. No.	Quantity
50-199-0902	Rockland Immunochemicals 200401C19	100 μg
50-199-0903	Rockland Immunochemicals 200401C19S	25 μL

Description

Store vial at 4°C prior to restoration. For extended storage aliquot contents and freeze at -20°C or below. Avoid cycles of freezing and thawing. Centrifuge product if not completely clear after standing at room temperature. This product is stable for several weeks at 4°C as an undiluted liquid. Dilute only prior to immediate use. This antibody is specific for Borrelia burgdorferi CRASP-2 protein. A BLAST analysis was used to suggest reactivity with CRASP-2 from B. burgdorferi sources based on 100% homology with the immunizing sequence. Partial cross-reactivity is expected against B. garinii, B. spielmanii, and valaisiana sources based on 91-89% homology. Cross-reactivity with CRASP-2 from other sources has not been determined.

CRASP-2 (Complement Regulator-Acquiring Surface Protein 2) of Borrelia burgdorferi binds FHL-1 and factor H binding protein in a distinct way. It may be predominantly expressed by serum-resistant Borrelia strains. Borrelia burgdorferi sensu lato has the ability to evade immune systems to persist in a variety of vertebrate hosts. This activity is dependent on a number of factors. Some Borrelia species bind host-derived fluid-phase immune regulators FHL-1 and factor H to their surface via complement regulator-acquiring surface proteins (CRASPs). Factor H and FHL-1 serve as cofactors for factor I, a serine protease that cleaves complement component 3b (C3b) directly on the cell surface and thereby confers resistance of spirochetes to complement-mediated lysis. It is possible that because of discontinuous binding regions in the factor H/FHL-1, long distance interaction may be involved in binding of both immune regulators. Putative coiled-coil structural elements may be important in the interaction of B. burgdorferi CRASP-1 with factor H.

Specifications

• Antigen: CRASP-2
• Applications: ELISA, Immunoprecipitation, Western Blot
• Conjugate: Unconjugated
• Host Species: Rabbit
• Target Species: Bacteria
• Immunogen: MBP-fusion protein corresponding to Borrelia burgdorferi CRASP-2 protein.
• Content And Storage: Store at 4°C short term. For long term storage, store at -20°C, avoiding freeze/thaw cycles.

• Concentration: 1 mg/mL
• Classification: Polyclonal
• Form: Lyophilized
• Regulatory Status: RUO
• Formulation: 0.02M potassium phosphate with 0.15M NaCl and 0.01% sodium azide; pH 7.2
• Primary or Secondary: Primary
• Product Type: Antibody