Rat Activin A ELISA Kit PicoKine®

Activin A is a homodimer of 14kDa beta-A. Activin A, a cytokine member of the transforming growth factor-beta superfamily, is expressed locally by the mesenchymal component of the hemopoietic microenvironment. Its expression is regulated on the mRNA level by different cytokines, and the biological activity of the protein is tightly controlled by several inhibitory molecules. Inhibins and activins are members of the transforming growth factor beta superfamily and are known to modulate the growth and differentiation of several cell types. Inhibins and activins inhibit and activate, respectively, the secretion of follitropin by the pituitary gland. Inhibins/activins are involved in regulating a number of diverse functions such as hypothalamic and pituitary hormone secretion, gonadal hormone secretion, germ cell development and maturation, erythroid differentiation, insulin secretion, nerve cell survival, embryonic axial development or bone growth, depending on their subunit composition. Inhibins appear to oppose the functions of activins. The standard product used in this kit is recombinant Activin A, which is composed of two single chains of 116 amino acids with the molecular mass of 26KDa.

Lots Lot 1 (pg/ml) Lot 2 (pg/ml) Lot 3 (pg/ml) Lot 4 (pg/ml) Mean (pg/ml) Standard Deviation CV (%) Sample 1 31 31 27 31 30 1.73 5.7% Sample 2 151 165 144 171 157 10.75 6.8% Sample 3 450 412 404 462 432 24.53 5.6% Lots Lot 1 (pg/ml) Lot 2 (pg/ml) Lot 3 (pg/ml) Lot 4 (pg/ml) Mean (pg/ml) Standard Deviation CV (%) Lots Lot 1 (pg/ml) Lot 2 (pg/ml) Lot 3 (pg/ml) Lot 4 (pg/ml) Mean (pg/ml) Standard Deviation CV (%) Sample 1 31 31 27 31 30 1.73 5.7% Sample 1 31 31 27 31 30 1.73 5.7% Sample 2 151 165 144 171 157 10.75 6.8% Sample 2 151 165 144 171 157 10.75 6.8% Sample 3 450 412 404 462 432 24.53 5.6% Sample 3 450 412 404 462 432 24.53 5.6%

Intra-Assay Precision Inter-Assay Precision Sample 1 2 3 1 2 3 n 16 16 16 24 24 24 Mean (pg/ml) 31 151 450 28 138 453 Standard deviation 1.30 8.00 24.20 1.56 8.69 25.36 CV (%) 4.2% 5.3% 5.6% 5.6% 6.3% 5.6% Intra-Assay Precision Inter-Assay Precision Sample 1 2 3 1 2 3 n 16 16 16 24 24 24 Mean (pg/ml) 31 151 450 28 138 453 Standard deviation 1.30 8.00 24.20 1.56 8.69 25.36 CV (%) 4.2% 5.3% 5.6% 5.6% 6.3% 5.6% Intra-Assay Precision Inter-Assay Precision Intra-Assay Precision Inter-Assay Precision Sample 1 2 3 1 2 3 Sample 1 2 3 1 2 3 n 16 16 16 24 24 24 n 16 16 16 24 24 24 Mean (pg/ml) 31 151 450 28 138 453 Mean (pg/ml) 31 151 450 28 138 453 Standard deviation 1.30 8.00 24.20 1.56 8.69 25.36 Standard deviation 1.30 8.00 24.20 1.56 8.69 25.36 CV (%) 4.2% 5.3% 5.6% 5.6% 6.3% 5.6% CV (%) 4.2% 5.3% 5.6% 5.6% 6.3% 5.6%

Inhibins and activins inhibit and activate, respectively, the secretion of follitropin by the pituitary gland. Inhibins/activins are involved in regulating a number of diverse functions such as hypothalamic and pituitary hormone secretion, gonadal hormone secretion, germ cell development and maturation, erythroid differentiation, insulin secretion, nerve cell survival, embryonic axial development or bone growth, depending on their subunit composition. Inhibins appear to oppose the functions of activins.

Description|Quantity Pre-coated 96-well strip microplate|1 Standard|2 vials Biotinylated antibody (100x) |100ul Avidin-Biotin-Peroxidase Complex (100x) |100ul Sample Diluent|30ml Antibody Diluent|12ml Avidin-Biotin-Peroxidase Diluent|12ml Color Developing Reagent (TMB) |10ml Stop Solution|10ml Wash Buffer (25x) |20ml Adhesive plate sealers|4

Store at 4°C for 6 months, at -20°C for 12 months. Avoid multiple freeze-thaw cycles (Ships with gel ice, can store for up to 3 days in room temperature. Freeze upon receiving.)

Concentration (pg/ml) 0 15.6 31.2 62.5 125 250 500 1000 O.D. 0.025 0.051 0.09 0.163 0.312 0.617 1.16 1.87 Concentration (pg/ml) 0 15.6 31.2 62.5 125 250 500 1000 O.D. 0.025 0.051 0.09 0.163 0.312 0.617 1.16 1.87 Concentration (pg/ml) 0 15.6 31.2 62.5 125 250 500 1000 Concentration (pg/ml) 0 15.6 31.2 62.5 125 250 500 1000 O.D. 0.025 0.051 0.09 0.163 0.312 0.617 1.16 1.87 O.D. 0.025 0.051 0.09 0.163 0.312 0.617 1.16 1.87

Microplate Reader capable of reading absorbance at 450nm. Incubator. Automated plate washer (optional) . Pipettes and pipette tips capable of precisely dispensing 0.5 μl through 1 ml volumes of aqueous solutions. Multichannel pipettes are recommended for large amount of samples. Deionized or distilled water. 500ml graduated cylinders. Test tubes for dilution.