Thermo Fisher Scientific CRASP-2 Polyclonal Antibody

Applications

Tested Dilution

Publications

Western Blot (WB)

0.5 µg/mL

-

ELISA (ELISA)

1:2,000

-

Immunoprecipitation (IP)

1:1,000

-

Product Specifications

Species Reactivity

Bacteria

Host/Isotype

Rabbit / IgG

Class

Polyclonal

Type

Antibody

Immunogen

MBP-fusion protein corresponding to Borrelia burgdorferi CRASP-2 protein.

Conjugate

Unconjugated Unconjugated Unconjugated

Form

Lyophilized

Concentration

1 mg/mL

Purification

Protein A

Storage buffer

0.02M potassium phosphate, pH 7.2, with 0.15M NaCl

Contains

0.01% sodium azide

Storage conditions

Store at 4°C short term. For long term storage, store at -20°C, avoiding freeze/thaw cycles.

Shipping conditions

Ambient (domestic); Wet ice (international)

Product Specific Information

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.

Target Information

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.

For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.