Alle primære antistoffer
Primære antistoffer, immunoglobuliner, der binder til specifikke proteiner eller andre biomolekyler, bruges i mange forskningsapplikationer og protokoller til at påvise mål af interesse. De er udviklet ved hjælp af forskellige dyreværter, herunder mus, rotte, kanin, ged, får og mange andre.
Monoklonale
og polyklonale antistoffer En type primære antistoffer, monoklonale antistoffer, giver høj reproducerbarhed og lav krydsreaktivitet og baggrundsstøj. En anden type, polyklonale antistoffer, koster ofte mindre og giver større affinitet og hurtigere binding. Begge er produceret ved hjælp af plasma B-celler, men førstnævnte bruger den samme klon, og sidstnævnte bruger forskellige kloner. Monoklonale antistoffer kræver hybridomcellelinjer, og polyklonale antistoffer gør det ikke.
Der er også rekombinante monoklonale antistoffer med lignende fordele, såsom høj affinitet, skalerbarhed og specificitet. De er produceret vha in vitro kloning af plasma B-celler og ekspressionsværter.
Konjugerede primære
antistoffer Antistoffer kan mærkes med forskellige fluoroforer eller detektionsmidler eller anvendes uden mærker. Mærkede primære antistoffer, også kendt som konjugerede primære antistoffer, hjælper forskere med at forenkle og strømline deres applikationer. De er koblet med almindelige enzymer og farvestoffer såsom Alexa Fluor og bruges ofte i protein- og celleanalyse.
Anvendelser Antistoffer til biovidenskabsapplikationer bruges i flowcytometri, western blotting, ELISA, immunhistokemi og immuncytokemi. Sekundære antistoffer kan tilsættes for at understøtte påvisning og oprensning af visse antigener. De binder til det primære antistof, som binder til antigenet af interesse. At finde den rigtige kombination af antistoffer kan resultere i større antigenspecificitet og et stærkt, detekterbart signal.
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Filtrerede søgeresultater
| Klon | SPM320 |
|---|---|
| Værtsarter | Mouse |
| Form | Purified |
| Konjugeret | Unconjugated |
| Isotype | IgM κ |
| Koncentration | 0.2 mg/mL |
| Fortynding | Immunohistochemistry-Paraffin 0.5 - 1.0 ug/ml, Immunofluorescence 0.5 - 1.0 ug/ml |
| Primær eller sekundær | Primary |
| Klassifikation | Monoclonal |
| Antigen | Thomsen-Friedenreich Antigen |
| Applikationer | Immunohistochemistry (Paraffin),Immunofluorescence |
| Indhold og opbevaring | Store at 4C. |
| Immunogen | Neuraminidase-treated human red blood cells |
| Formulering | 10mM PBS and 0.05% BSA with 0.05% Sodium Azide |
| Målarter | Human,Mouse,Rat |
| Regulatorisk status | RUO |
| Testspecificitet | Recognizes a disaccharide epitope, Gal1-3GalNAc, of Thomsen-Friedenreich (TF) antigen. It is specific for both anomeric forms of the disaccharide (TF and TF, including related structures on the glycolipid) and shows no cross-reactivity with sialylated glycophorin. The Thomsen-Friedenreich antigen acts as an oncofetal antigen, with low expression in normal adult tissues but increasing to fetal levels of expression in hyperplasia or malignancy. It is considered as a pan-carcinoma marker. This MAb is capable to agglutinate desialylated red blood cells. During metastasis, the ability of malignant cells to form multicellular aggregates via homotypic or heterotypic aggregation and their adhesion to the endothelium are critical. The tumor-associated carbohydrate Thomsen-Friedenreich antigen (Gal-GalNAc) is involved in tumor cell adhesion and tissue invasion. It also causes an immune response, and overexpression of the antigen causes cancer cells to be more sensitive to natural killer cell lysis. The Thomsen-Friedenreich antigen is suppressed in normal healthy cells and represents one of the few chemically well-defined antigens associated with tumor malignancy. The presence of the Thomsen-Friedenreich antigen on the surface of cancer cells may result from a divergence from the normal pathway for O-linked glycosylation in these cells, most likely caused by inappropriate localization of the enzymes involved in synthesis of the disaccharide. |
| Oprensningsmetode | Protein A or G purified |
| Klon | A68-B/A11 |
|---|---|
| Værtsarter | Mouse |
| Form | Purified |
| Konjugeret | Unconjugated |
| Isotype | IgM κ |
| Koncentration | 0.2 mg/mL |
| Fortynding | Immunohistochemistry-Paraffin 0.5 - 1.0 ug/ml, Immunofluorescence 0.5 - 1.0 ug/ml |
| Primær eller sekundær | Primary |
| Klassifikation | Monoclonal |
| Antigen | Thomsen-Friedenreich Antigen |
| Applikationer | Immunohistochemistry (Paraffin),Immunofluorescence |
| Indhold og opbevaring | Store at 4C. |
| Immunogen | Neuraminidase-treated human red blood cells |
| Formulering | 10mM PBS and 0.05% BSA with 0.05% Sodium Azide |
| Målarter | Human,Mouse,Rat |
| Regulatorisk status | RUO |
| Testspecificitet | Recognizes a disaccharide epitope, Gal1-3GalNAc, of Thomsen-Friedenreich (TF) antigen. It is specific for both anomeric forms of the disaccharide (TF and TF, including related structures on the glycolipid) and shows no cross-reactivity with sialylated glycophorin. The Thomsen-Friedenreich antigen acts as an oncofetal antigen, with low expression in normal adult tissues but increasing to fetal levels of expression in hyperplasia or malignancy. It is considered as a pan-carcinoma marker. This MAb is capable to agglutinate desialylated red blood cells. During metastasis, the ability of malignant cells to form multicellular aggregates via homotypic or heterotypic aggregation and their adhesion to the endothelium are critical. The tumor-associated carbohydrate Thomsen-Friedenreich antigen (Gal-GalNAc) is involved in tumor cell adhesion and tissue invasion. It also causes an immune response, and overexpression of the antigen causes cancer cells to be more sensitive to natural killer cell lysis. The Thomsen-Friedenreich antigen is suppressed in normal healthy cells and represents one of the few chemically well-defined antigens associated with tumor malignancy. The presence of the Thomsen-Friedenreich antigen on the surface of cancer cells may result from a divergence from the normal pathway for O-linked glycosylation in these cells, most likely caused by inappropriate localization of the enzymes involved in synthesis of the disaccharide. |
| Oprensningsmetode | Protein A or G purified |