Catalogue

Background
In immunoelectrophoresis against human milk precipitation of not less than 7 different proteins may be obtained. However the number of visible precipitin lines varies widely among individual specimens of human milk. The total concentration of protein, their proportion of the different protein components change markedly during the course of lactation. A protein detected in a human secretion by this antiserum may be of secretory origin, or it may be a plasma protein presumably entering in the secretion from the surrounding capillary vessels and through interstitial tissues. Virtually every plasma protein may also be present at a detectable level in milk. Not all precipitable proteins have been identified. Known proteins include secretory IgA and other immunoglobulins, free secretory component, lactoferrin, components of the complement system and albumin. In immunoelectrophoresis to identify the protein pattern in an individual milk sample, to compare individual patterns and to make comparisons with serum protein patterns or those of other secretions; to identify individual components, and significant changes in concentration. To test the purity of an isolated milk protein.

Source
Pooled whole human milk. Freund’s complete adjuvant is used in the first step of the immunization procedure.

Product
Delipidated, heat inactivated, lyophilized, stable whole antiserum. No preservative added. Total protein and IgG concentrations in the antiserum are comparable to those of pooled normal rabbit serum. No foreign proteins added. Reconstitute the lyophilized antiserum by adding 1 ml sterile distilled water.

Formulation: Delipidated, heat inactivated, lyophilized, stable whole antiserum. No preservative added. Total protein and IgG concentrations in the antiserum are comparable to those of pooled normal rabbit serum. No foreign proteins added.

Specificity
Precipitating polyclonal Rabbit antiSerum to Human milk proteins.

Species Reactivity: Inter-species cross reactivity is a normal feature of antibodies to animal proteins since homologous proteins of different species frequently share antigenic determinants. This antiSerum has not been adsorbed for such cross reactivity. Consequently it is not species-specific.

Applications
Precipitation assays. In immunoelectrophoresis use 2 μl serum or equivalent against 120 μl antiserum. In double radial immunodiffusion (Ouchterlony) use a rosette arrangement with 10 μl antiserum in 3 mm diameter center well and 2 μl serum samples (neat and serially diluted in 2 mm diameter peripheral wells. Different bleedings of the immunized animals are pooled to obtain a broad spectrum balanced against the varying concentrations of the individual serum protein components.

Storage
The lyophilized antiserum is shipped at ambient temperature and may be stored at +4°C; prolonged storage at or below -20°C. Dilutions may be prepared by adding phosphate buffered saline (PBS, pH 7.2). Repeated thawing and freezing should be avoided. If a slight precipitation occurs upon storage, this should be removed by centrifugation. It will not affect the performance of the antiserum. Diluted antiserum should be stored at +4°C, not refrozen, and preferably used the same day.

Caution
This product is intended FOR RESEARCH USE ONLY, and FOR TESTS IN VITRO, not for use in diagnostic or therapeutic procedures involving humans or animals. It may contain hazardous ingredients. Please refer to the Safety Data Sheets (SDS) for additional information and proper handling procedures. Dispose product remainders according to local regulations.This datasheet is as accurate as reasonably achievable, but Nordic-MUbio​ accepts no liability for any inaccuracies or omissions in this information.