Human Calcineurin B/PPP3R1 Baculovirus-Insect cells Overexpression Lysate: 产品信息
This Human Calcineurin B/PPP3R1 overexpression lysate was created in Baculovirus-Insect cells and intented for use as a Western blot (WB) positive control. Purification of Calcineurin B/PPP3R1 protein (Cat: 13673-H07B) from the overexpression lysate was verified.
A DNA sequence encoding the human PPP3R1 (P63098) (Gly2-Val170) was fused with a polyhistide tag at the N-terminus.
The recombinant human PPP3R1 consists of 187 amino acids and has a calculated molecular mass of 21.4 kDa. The recombinant protein migrates as an approximately 20 kDa band in SDS-PAGE under reducing conditions.
Human Calcineurin B/PPP3R1 Baculovirus-Insect cells Overexpression Lysate: 使用指南
Cell lysate was prepared by homogenization of the over-expressed cells in ice-cold modified RIPA Lysis Buffer with cocktail of protease inhibitors (Sigma). Cell debris was removed by centrifugation. Protein concentration was determined by Bradford assay (Bio-Rad protein assay, Microplate Standard assay). The cell lysate was boiled for 5 min in 1 x SDS loading buffer (50 mM Tris-HCl pH 6.8, 12.5% glycerol, 1% sodium dodecylsulfate, 0.01% bromophenol blue) containing 5% b-mercaptoethanol, and lyophilized.
1. Centrifuge the tube for a few seconds and ensure the pellet at the bottom of the tube.
2. Re-dissolve the pellet using 200μL pure water and boil for 2-5 min.
1 X Sample Buffer (1 X modified RIPA buffer+1 X SDS loading buffer).
稳定性 & 储存条件
Store at 4℃ for up to twelve months from date of receipt. After re-dissolution, aliquot and store at -80℃ for up to twelve months. Avoid repeated freeze-thaw cycles.
Western Blot (WB) Optimal dilutions/concentrations should be determined by the end user.
Human Calcineurin B/PPP3R1 Baculovirus-Insect cells Overexpression Lysate: 别称
Human CALNB1 Overexpression Lysate; Human CNB Overexpression Lysate; Human CNB1 Overexpression Lysate
Calcineurin B/PPP3R1 背景信息
PPP3R1 belongs to the calcineurin regulatory subunit family. It is a regulatory subunit of calcineurin. Calcineurin is composed of two subunits: calcineurin A (CnA) and calcineurin B (CnB). Dephosphorylation of the nuclear factor of activated T-cells (NF-AT) by Calcineurin is essential for NF-AT activation, nuclear translocation, and early gene expression in T-cells. PPP3R1 is a Ser/Thr-specific calcium and calmodulin-dependent protein phosphatase which takes a vital part in the T cell activation pathway. PPP3R1 is involved in protein dephosphorylation, NFAT protein import into nucleus (ortholog) and epithelial to mesenchymal transition (ortholog). It participates in calcineurin signaling pathway; mitogen activated protein kinase signaling pathway. PPP3R1 interacts with (+)-pilocarpine, 2,4-dinitrotoluene and ammonium chloride. It contains four EF-hand domains and four functional calcium-binding sites. PPP3R1 plays an important role in the T cell activation pathway.
protein phosphatase 3, regulatory subunit B, alpha
Feng B, et al. (1999) Interactions of calcineurin A, calcineurin B, and Ca2+. Biochemistry 38 (38): 12481-9.
Kawamura A, et al. (1995) Interaction of FKBP12-FK506 with calcineurin A at the B subunit-binding domain. J Biol Chem. 270(26):15463-6.
Wang MG, et al. (1997) Calcineurin A alpha (PPP3CA), calcineurin A beta (PPP3CB) and calcineurin B (PPP3R1) are located on human chromosomes 4, 10q21q22 and 2p16p15 respectively. Cytogenet Cell Genet. 72(2-3):236-41.