Factor I polyclonal, anti-human

Quantity: 200 µl

Background:
The reactivity of the antiserum is restricted to factor I. In immunoelectrophoresis and radial immunodiffusion, using various antiserum concentrations against human EDTA plasma a single precipitin line is obtained and shows a reaction of full identity with the purified immunogen. In precipitating techniques as immunoelectrophoresis and single and double radial immunodiffusion (Mancini, Ouchterlony) to identify the presence of F I or to determine its concentration. The presence of non-precipitating antibodies has not been assayed. This does not exclude the use of the antiserum in non-precipitating antibody-binding techniques if proper controls are included.

Isotype: Sheep Polyclonal

Source: Factor I is a serine protease composed of two disulphide-linked chains. The protein has a molecular weight of 88.000 and its mean concentration in human plasma is 35 ?g/ml. It is involved in the regulation of the C3/C5 convertase of either pathway. Using C4-binding protein or factor H splits the a chains of C4b or C3b respectively, which includes their roles in the C3/C5 convertases. It has been isolated as a homogenous protein for use in the antiserum production. Freund's complete adjuvant is used in the first step of the immunization procedure.

Form: Delipidated, heat inactivated, in PBS and 0.1% sodium azide.

Reactivity: human

Cross Reactivity:
The antiserum does not cross-react with any other Human plasma proteins as tested in geldiffusion techniques. Inter-species cross-reactivity is a normal feature of antibodies to plasma proteins, since homologous proteins of different species frequently share antigenic determinants. Cross-reactivity of this antiserum has not been tested in detail.

Applications: Immunoprecipitation

Storage: Store at 4C, or in small aliquots at -20C.