Description_x000D_ General description_x000D_ Immunoglobulin Y is one of the antibodies produced in birds. It is generally related to mammalian IgG. However, IgY has different characteristics compared to mammalian IgG, for example, IgY does not bind with mammalian complements nor Rheumatoid factor, which are present in mammalian serum and anti-mammalian IgG antibodies, which often cross-react to IgG from different mammalian species, exhibit low cross-reactivity to IgY. These characteristics of IgY is beneficial when it is used as a biochemical/clinical reagent. Immunoglobulin Y present in chicken blood serum has the capability to pass across the follicular epithelium of the ovary and aggregate in the yolk during oogenesis. Structurally IgY and mammalian IgG differ in the heavy chain with the molecular weight of 68,000 and 50,000 respectively. Mammalian IgG has slightly higher stability compared to IgY._x000D_ CF™ dyes are a series of highly water-soluble fluorescent dyes, with wavelength extended over the visible and near-infrared (IR) spectrum for labelling biomolecules, mainly proteins and nucleic acids. Primary structure of the CF™ dyes is either cyanine dyes or rhodamine dyes. CF™ 633 produce the brightest antibody conjugates among spectrally similar dyes when excited by the 633nm He-Ne laser or the 635nm red diode laser. The most important advantage of CF™ 633 is its excellent photostability. Molecular weight of CF™ 633 is ~820 and its absorption/emission maxima is at 630/650nm._x000D_ Specificity_x000D_ Binds all chicken IgYs (minimal cross-reaction with bovine, goat, guinea pig, syrian hamster, horse, human, mouse, rabbit, rat and sheep proteins)_x000D_ Immunogen_x000D_ chicken IgY (H+L)_x000D_ Application_x000D_ Anti-Chicken IgY (H+L), highly cross-adsorbed, CF™ 633 antibody produced in donkey has been used in immunofluorescence technique._x000D_ Physical form_x000D_ Supplied in phosphate buffered saline with 0.05% sodium azide, 50% glycerol and 2 mg/mL bovine serum albumin._x000D_ Disclaimer_x000D_ Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals._x000D_ Legal Information_x000D_ This product is distributed by Sigma-Aldrich Co. under the authorization of Biotium, Inc. This product is covered by one or more US patents and corresponding patent claims outside the US patents or pending applications owned or licensed by Biotium, Inc. including without limitation: 12/334,387; 12/607,915; 12/699,778; 12/850,578; 61/454,484. In consideration of the purchase price paid by the buyer, the buyer is hereby granted a limited, non-exclusive, non-transferable license to use only the purchased amount of the product solely for the buyer’s own internal research in a manner consistent with the accompanying product literature. Except as expressly granted herein, the sale of this product does not grant to or convey upon the buyer any license, expressly, by implication or estoppel, under any patent right or other intellectual property right of Biotium, Inc. Buyer shall not resell or transfer this product to any third party, or use the product for any commercial purposes, including without limitation, any diagnostic, therapeutic or prophylactic uses. This product is for research use only. Any other uses, including diagnostic uses, require a separate license from Biotium, Inc. For information on purchasing a license to use this product for purposes other than research, contact Biotium, Inc., 3159 Corporate Place, Hayward, CA 94545, Tel: (510) 265-1027. Fax: (510) 265-1352. Email: btinfo@biotium.com._x000D_ CF is a trademark of Biotium, Inc._x000D_ Features and Benefits_x000D_ Evaluate our antibodies with complete peace of mind. If the antibody does not perform in your application, we will issue a full credit or replacement antibody. Learn more._x000D_ Preparation Note_x000D_ Protect from light.