Human STC2 HEK293 Overexpression Lysate

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Human STC2 HEK293 Overexpression Lysate: 产品信息

产品描述
This Human STC2 overexpression lysate was created in HEK293 Cells and intented for use as a Western blot (WB) positive control. Purification of STC2 protein (Cat: 13653-H08H) from the overexpression lysate was verified.
表达宿主
HEK293 Cells
种属
Human
蛋白构建信息
A DNA sequence encoding the human STC2 (O76061) (Met1-Arg302) was expressed with a C-terminal polyhistidine tag.
分子量
The recombinant human STC2 comprises 289 amino acids and has a predicted molecular mass of 32.1 kDa. The apparent molecular mass of the protein is approximately 35-42 kDa in SDS-PAGE under reducing conditions due to glycosylation.

Human STC2 HEK293 Overexpression Lysate: 使用指南

制备方法
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.
裂解缓冲液
Modified RIPA Lysis Buffer: 50 mM Tris-HCl pH 7.4, 150 mM NaCl, 1mM EDTA, 1% Triton X-100, 0.1% SDS, 1% Sodium deoxycholate, 1mM PMSF.
使用建议
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.
缓冲液
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.
应用
Western Blot (WB)
Optimal dilutions/concentrations should be determined by the end user.

Human STC2 HEK293 Overexpression Lysate: 别称

Human STC-2 Overexpression Lysate; Human STCRP Overexpression Lysate

STC2 背景信息

STC2 is a secreted, homodimeric glycoprotein expressed in a wide variety of tissues. STC2 has an anti-hypocalcemic action on calcium and phosphate homeostasis. It may have autocrine or paracrine functions. Its C-terminus contains a cluster of histidine residues that may interact with metal ions. STC2 has 10 of its 15 cysteine residues conserved among stanniocalcin family members and is phosphorylated by casein kinase 2 exclusively on its serine residues. It may play a role in the regulation of renal and intestinal calcium and phosphate transport, cell metabolism, or cellular calcium/phosphate homeostasis.
全称
stanniocalcin 2
参考文献
  • Chang AC, et al. (1998) Identification of a second stanniocalcin cDNA in mouse and human: stanniocalcin 2. Mol Cell Endocrinol. 141(1-2):95-9.
  • Ishibashi K, et al. (1998) Molecular cloning of a second human stanniocalcin homologue (STC2). Biochem Biophys Res Commun. 250(2):252-8.
  • uo CW, et al. (2005) Identification of a stanniocalcin paralog, stanniocalcin-2, in fish and the paracrine actions of stanniocalcin-2 in the mammalian ovary. Endocrinology. 146(1):469-76.
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