Human GADD45A Baculovirus-Insect cells Overexpression Lysate: 产品信息
This Human GADD45A overexpression lysate was created in Baculovirus-Insect cells and intented for use as a Western blot (WB) positive control. Purification of GADD45A protein (Cat: 11156-H20B) from the overexpression lysate was verified.
A DNA sequence encoding the full length of human GADD45A (P24522) (Met 1-Arg 165) was fused with the N-terminal polyhistidine-tagged GST tag at the N-terminus.
The recombinant human GADD45A/GST chimera consists of 402 amino acids and has a calculated molecular mass of 46.2 kDa. It migrates as an approximately 46 kDa band in SDS-PAGE under reducing conditions.
Human GADD45A 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 GADD45A Baculovirus-Insect cells Overexpression Lysate: 别称
Human DDIT1 Overexpression Lysate; Human GADD45 Overexpression Lysate
GADD45A is a member of the GADD45 Family, and has been found to associate with several cytoplasmic and nuclear factors and has been implicated in several cellular functions, including MAPK signaling, cell cycle regulation, DNA repair and genomic stability, apoptosis, and immune responses. The GADD45 Family of genes is rapidly induced by different stressors, including differentiation-inducing cytokines, and there is a large body of evidence that their cognate proteins are key players in cellular stress responses. GADD45A protein has been reported to interact with multiple important cellular proteins, including Cdc2 protein kinase, proliferating cell nuclear antigen (PCNA), p21Waf1/Cip1 protein, core histone protein and MTK/MEKK4, an up-stream activator of the JNK/SAPK pathway, indicating that GADD45A may play important roles in the control of cell cycle checkpoint, DNA repair process, and signaling transduction. GADD45A expression in response to genotoxic stress illustrates a more complex scenario, wherein transcriptional changes operate in concert with mRNA turnover and translational regulation. GADD45A was the first stress-inducible gene determined to be up-regulated by p53 and is also a target for the p53 homologues, p63 and p73. The decreased GADD45A expression is also considered a survival mechanism, as cancer cells without this control can evade the apoptotic pathway leading to increased tumourigenesis. As GADD45A is an essential component of many metabolic pathways that control proliferating cancer cells, it presents itself as an emerging drug target worthy of further investigation.
growth arrest and DNA-damage-inducible, alpha
T Cell Receptor Signaling Pathway
Zhan Q. (2005) Gadd45a, a p53- and BRCA1-regulated stress protein, in cellular response to DNA damage. Mutat Res. 569(1-2): 133-43.
Lal A, et al. (2006) Egad, more forms of gene regulation: the gadd45a story. Cell Cycle. 5(13): 1422-5.
Hoffman B, et al. (2007) Role of gadd45 in myeloid cells in response to hematopoietic stress. Blood Cells Mol Dis. 39(3): 344-7.
Rosemary Siafakas A, et al. (2009) Growth arrest and DNA damage-45 alpha (GADD45alpha). Int J Biochem Cell Biol. 41(5): 986-9.