RNA isolation / purification Cells immortalized

Get tips on using Mouse/Rat/Porcine/Canine TGF-beta 1 Quantikine ELISA Kit to perform ELISA Mouse - TGF-beta 1

Get tips on using Phospho-SAPK/JNK (Thr183/Tyr185) (81E11) Rabbit mAb to perform siRNA / miRNA gene silencing Human - COV-434 SAPK/JNK

Get tips on using Di-Methyl-Histone H3 (Lys27) (D18C8) XP® Rabbit mAb #9728 to perform ChIP Anti-bodies H3K27me2

Get tips on using Mono-Methyl-Histone H3 (Lys4) (D1A9) XP® Rabbit mAb #5326 to perform ChIP Anti-bodies H3K4me1

Get tips on using QuikChange Site-Directed Mutagenesis Kit, 10 Rxn to perform Site Directed Mutagenesis (SDM) Rat - Point mutation Rat-2 MMP-9 promoter

Get tips on using APC Rat Anti-Mouse Ly-6G and Ly-6C to perform Flow cytometry Anti-bodies Mouse - Ly6C/Gr-1/Ly6G

Get tips on using Non-phospho (Active) β-Catenin (Ser33/37/Thr41) (D13A1) Rabbit mAb #8814 to perform Immunohistochemistry Mouse - β-Catenin

Get tips on using Purified Rat Anti-Mouse CD16/CD32 (Mouse BD Fc Block™) to perform Flow cytometry Anti-bodies Mouse - CD16/CD32

Get tips on using DYKDDDDK Tag (D6W5B) Rabbit mAb (Binds to same epitope as Sigma's Anti-FLAG® M2 Antibody) #14793 to perform ChIP Anti-bodies FLAG

ELISA is the most commonly used method of detecting and quantifying the concentration of an antigen in an unknown sample. During the experiment, If you get a weak signal, then make sure reagents are at room temperature before starting the assay. Try increasing incubation times to ensure maximal antibody binding and amplify the signal. Secondly, if you get values above 0 in the negative control indicates a high background signal. Try to consider reducing your antibody concentration and prevent non-specific binding of antibodies by using affinity-purified antibody and suitable blocking buffers. To avoid high well to well variation, do not stack plates during incubation, no bubbles in the plate and wash wells thoroughly to avoid variation.