Donkey anti-Rat IgG (H+L) Highly Cross-Adsorbed Secondary Antibody, Alexa Fluor 594/高交叉吸附荧光二抗, Alexa Fluor 594

货号：A-21209

规格：500μl

价格：3589

产品类型：荧光二抗

品牌：Thermo Fisher

物种：大鼠

宿主：驴

抗体亚型：IgG

荧光染料：Alexa Fluor 594

点击查看所有Alexa Fluor 荧光二抗

抗体类型:	荧光二抗	同型对照：	IgG
免疫原性：	Gamma Immunoglobins Heavy and Light chains	用法：	1-10 μg/mL（IHC）；1 μg/mL (ICC)；1 μg/mL (IF)

These donkey anti-rat IgG (H+L) whole secondary antibodies have been affinity-purified and show minimum cross-reactivity to bovine, chicken, goat, guinea pig, hamster, horse, human, mouse, rabbit, and sheep serum proteins. Cross-adsorption or pre-adsorption is a purification step to increase specificity of the antibody resulting in higher sensitivity and less background staining. The secondary antibody solution is passed through a column matrix containing immobilized serum proteins from potentially cross-reactive species. Only the nonspecific-binding secondary antibodies are captured in the column, and the highly specific secondaries flow through. The benefits of this extra step are apparent in multiplexing/multicolor-staining experiments (e.g., flow cytometry) where there is potential cross-reactivity with other primary antibodies or in tissue/cell fluorescent staining experiments where there may be the presence of endogenous immunoglobulins.Alexa Fluor dyes are among the most trusted fluorescent dyes available today. Invitrogen™ Alexa Fluor 594 dye is a bright, red-fluorescent dye with excitation ideally suited to the 594 nm laser line. For stable signal generation in imaging and flow cytometry, Alexa Fluor 594 dye is pH-insensitive over a wide molar range. Probes with high fluorescence quantum yield and high photostability allow detection of low-abundance biological structures with great sensitivity. Alexa Fluor 594 dye molecules can be attached to proteins at high molar ratios without significant self-quenching, enabling brighter conjugates and more sensitive detection. The degree of labeling for each conjugate is typically 2-8 fluorophore molecules per IgG molecule; the exact degree of labeling is indicated on the certificate of analysis for each product lot.Using conjugate solutions: Centrifuge the protein conjugate solution briefly in a microcentrifuge before use; add only the supernatant to the experiment. This step will help eliminate any protein aggregates that may have formed during storage, thereby reducing nonspecific background staining. Because staining protocols vary with application, the appropriate dilution of antibody should be determined empirically. For the fluorophore-labeled antibodies a final concentration of 1-10 µg/mL should be satisfactory for most immunohistochemistry and flow cytometry applications.Background/Target InformationWe offer an extensive line of Invitrogen™ secondary antibody conjugates with well-characterized specificity and labeled with a wide selection of premium fluorescent dyes, including Invitrogen™ Alexa Fluor™ fluorescent dyes. Fluorescent secondary antibody conjugates are useful in the detection, sorting, or purification of its specified target and ideal for fluorescence microscopy and confocal laser scanning microscopy, flow cytometry, and fluorescent western detection. The breadth of fluorescent markers we offer allows our reagents to be tailored to almost any fluorescent detection system.Secondary antibodies may be provided in three formats: whole IgG, divalent F(ab')2 fragments, and monovalent Fab fragments. Because of the high degree of conservation in the structure of many immunoglobulin domains, most class-specific secondary antibodies must be affinity-purified and cross-adsorbed to achieve minimal cross-reaction with other immunoglobulins.Our secondary antibody conjugates are most commonly prepared by immunizing the host animal with a pooled population of immunoglobulins from the target species and can be further purified and modified (e.g., immunoaffinity chromatography, antibody fragmentation, label conjugation, etc.) to generate highly specific reagents. In the first round of purification, whole immunoglobulins binding to the immunizing antibody are recovered and mainly consist of the ~150-kDa IgG class. Further purification, for example, with Protein A or G, removes all unwanted immunoglobulin classes except the affinity-purified antibodies that react with the target-specific immunoglobulin heavy and/or light chains.

数据

Rat IgG (H+L) Highly Cross-Adsorbed Secondary Antibody (A-21209) in IFImmunofluorescence analysis of Donkey anti-Rat IgG (H+L) Secondary Antibody, Alexa Fluor 594 conjugate was performed using A549 cells stained with alpha Tubulin (YL1/2) Rat Monoclonal Antibody (Product # MA1-80017). The cells were fixed with 4% paraformaldehyde for 10 minutes, permeabilized with 0.1% Triton™ X-100 for 10 minutes, blocked with 1% BSA for 1 hour and labeled with 2µg/mL Rat primary antibody for 3 hours at room temperature. Donkey anti-Rat IgG (H+L) Secondary Antibody, Alexa Fluor 594 conjugate (Product # A-21209) was used at a concentration of 1µg/mL in phosphate buffered saline containing 0.2 % BSA for 45 minutes at room temperature, for detection of alpha Tubulin in the cytoplasm (Panel a: red). Nuclei (Panel b: blue) were stained with DAPI in SlowFade® Gold Antifade Mountant (Product # S36938). F-actin was stained with Alexa Fluor® 488 Phalloidin (Product # A12379, 1:300) (Panel c: green). Panel d represents the composite image. No nonspecific staining was observed with the secondary antibody alone (panel f), or with an isotype control (panel e). The images were captured at 60X magnification.

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参考文献：

1. Nature communicationsPrenatal thalamic waves regulate cortical area size prior to sensory processing."A21209 was used in immunohistochemistry to reveal the existence of a prenatal sub-cortical mechanism that regulates the cortical areas size"AuthorsMoreno-Juan V,Filipchuk A,Antón-Bolaños N,Mezzera C,Gezelius H,Andrés B,Rodríguez-Malmierca L,Susín R,Schaad O,Iwasato T,Schüle R,Rutlin M,Nelson S,Ducret S,Valdeolmillos M,Rijli FM,López-Bendito G2. Frontiers in synaptic neuroscienceMice Lacking M1 and M3 Muscarinic Acetylcholine Receptors Have Impaired Odor Discrimination and Learning."A21209 was used in immunohistochemistry to assess the contribution of M1 and M3 acetylcholine receptor subtypes to olfactory processing"AuthorsChan W,Singh S,Keshav T,Dewan R,Eberly C,Maurer R,Nunez-Parra A,Araneda RC3. Frontiers in cellular neuroscienceTemporal Characterization of Microglia/Macrophage Phenotypes in a Mouse Model of Neonatal Hypoxic-Ischemic Brain Injury."A21209 was used in immunohistochemistry to investigate temporal changes of the CD11b+ cell populations in the brain and protein expression of the immunomodulatory factor galectin-3 in neonatal hypoxia-ischemia brain tissue"AuthorsHellström Erkenstam N,Smith PL,Fleiss B,Nair S,Svedin P,Wang W,Boström M,Gressens P,Hagberg H,Brown KL,Sävman K,Mallard C4. OncogeneMiR-21 is required for anti-tumor immune response in mice: an implication for its bi-directional roles."A21209 was used in immunohistochemistry to clarify the mechanisms by which miR-21 contributes to oncogenesis"AuthorsHe W,Wang C,Mu R,Liang P,Huang Z,Zhang J,Dong L5. Stem cell reportsGenome Transfer Prevents Fragmentation and Restores Developmental Potential of Developmentally Compromised Postovulatory Aged MouseOocytes."A21209 was used in immunohistochemistry to examine if transferring the nuclear genome from a developmentally incompetent to a developmentally competent oocyte restores development potential"AuthorsYamada M,Egli D

技术参数

产品应用 ICC;IF;IHC

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