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|Tested species reactivity||Mouse|
|Published species reactivity||Not Applicable|
|Host / Isotype||Goat / IgG|
|Conjugate||Alexa Fluor® 647|
|Storage buffer||PBS, pH 7.5|
|Contains||5mM sodium azide|
|Storage Conditions||4° C, store in dark|
|Cross Adsorption||Against mouse IgM, mouse IgA, pooled human sera, purified human paraproteins and mouse isotypes IgG1, IgG2a and IgG3 prior to conjugation|
|Antibody Form||Whole Antibody|
|Tested Applications||Dilution *|
|Immunocytochemistry (ICC)||1-10 µg/ml|
|Immunofluorescence (IF)||1-10 µg/mL|
|Immunohistochemistry (IHC)||1-10 µg/ml|
* Suggested working dilutions are given as a guide only. It is recommended that the user titrate the product for use in their own experiment using appropriate negative and positive controls.
To minimize cross-reactivity, these goat anti-mouse IgG2b whole secondary antibodies have been affinity purified and cross-adsorbed against mouse IgM, mouse IgA, pooled human sera, purified human paraproteins, and mouse isotypes IgG1, IgG2a, and IgG3 prior to conjugation. 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 are may be the presence of endogenous immunoglobulins.
Alexa Fluor dyes are among the most trusted fluorescent dyes available today. Invitrogen™ Alexa Fluor 647 dye is a near-infrared-fluorescent dye with excitation ideally suited to the 647 nm laser line. For stable signal generation in imaging and flow cytometry, Alexa Fluor 647 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 647 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.
We 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.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
|Not Applicable||Not Cited||
The long non-coding RNA nuclear-enriched abundant transcript 1_2 induces paraspeckle formation in the motor neuron during the early phase of amyotrophic lateral sclerosis.
A-21242 was used in immunocytochemistry to analyze paraspeckle formation in the motor neuron during the early phase of amyotrophic lateral sclerosis induced by the long non-coding RNA nuclear-enriched abundant transcript 1_2
|Nishimoto Y,Nakagawa S,Hirose T,Okano HJ,Takao M,Shibata S,Suyama S,Kuwako K,Imai T,Murayama S,Suzuki N,Okano H||Molecular brain (6:null)||2013|
|Not Applicable||Not Cited||
An epigenetic feedback regulatory loop involving microRNA-195 and MBD1 governs neural stem cell differentiation.
A-21242 was used in immunohistochemistry to report that MBD1 deficiency in adult neural stem/progenitor cells results in altered expression of several noncoding microRNAs
|Liu C,Teng ZQ,McQuate AL,Jobe EM,Christ CC,von Hoyningen-Huene SJ,Reyes MD,Polich ED,Xing Y,Li Y,Guo W,Zhao X||PloS one (8:null)||2013|
|Not Applicable||Not Cited||In vivo and in vitro insulin and fasting control of the transmembrane fatty acid transport proteins in Atlantic salmon (Salmo salar).||Sánchez-Gurmaches J,Østbye TK,Navarro I,Torgersen J,Hevrøy EM,Ruyter B,Torstensen BE||American journal of physiology. Regulatory, integrative and comparative physiology (301:R947)||2011|
|Not Applicable||Not Cited||Restriction of receptor movement alters cellular response: physical force sensing by EphA2.||Salaita K,Nair PM,Petit RS,Neve RM,Das D,Gray JW,Groves JT||Science (New York, N.Y.) (327:1380)||2010|
|Not Applicable||Not Cited||Self-renewing and differentiating properties of cortical neural stem cells are selectively regulated by basic fibroblast growth factor (FGF) signaling via specific FGF receptors.||Maric D,Fiorio Pla A,Chang YH,Barker JL||The Journal of neuroscience : the official journal of the Society for Neuroscience (27:1836)||2007|
|Not Applicable||Not Cited||Four-color staining combining fluorescence and brightfield microscopy for simultaneous immune cell phenotyping and localization in tumor tissue sections.||van Vlierberghe RL,Sandel MH,Prins FA,van Iersel LB,van de Velde CJ,Tollenaar RA,Kuppen PJ||Microscopy research and technique (67:15)||2005|
|Not Applicable||Not Cited||Canonical transient receptor potential 1 plays a role in basic fibroblast growth factor (bFGF)/FGF receptor-1-induced Ca2+ entry and embryonic rat neural stem cell proliferation.||Fiorio Pla A,Maric D,Brazer SC,Giacobini P,Liu X,Chang YH,Ambudkar IS,Barker JL||The Journal of neuroscience : the official journal of the Society for Neuroscience (25:2687)||2005|
|Not Applicable||Not Cited||Rapid analysis of mitochondrial DNA depletion by fluorescence in situ hybridization and immunocytochemistry: potential strategies for HIV therapeutic monitoring.||Janes MS,Hanson BJ,Hill DM,Buller GM,Agnew JY,Sherwood SW,Cox WG,Yamagata K,Capaldi RA||The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society (52:1011)||2004|
|Not Applicable||Not Cited||Detection of low copy numbers of HPV DNA by fluorescent in situ hybridization combined with confocal microscopy as an alternative to in situ polymerase chain reaction.||Lizard G,Chignol MC,Souchier C,Roignot P,Chardonnet Y,Schmitt D||Journal of virological methods (72:15)||1998|
Cross talk between microRNA and epigenetic regulation in adult neurogenesis.
A-21242 was used in immunohistochemistry - free floating to investigate the cross talk between miR-137 and epigenetic regulation in adult neural stem cells.
|Szulwach KE,Li X,Smrt RD,Li Y,Luo Y,Lin L,Santistevan NJ,Li W,Zhao X,Jin P||The Journal of cell biology (189:127)||2010|