REG4 Human
Regenerating Protein IV Human Recombinant
Catalog No. PRO-424
Synonyms:
Regenerating islet-derived protein 4, Reg IV, REG-like protein, Gastrointestinal secretory protein, REG4, GISP, RELP.
Introduction:
REG protein was shown to be stimulated during the regeneration of pancreatic islets. Since then, many Reg-related proteins have been identified in humans and other animals. In human, the four REG family genes, i.e., REG 1 alpha, REG 1 beta, REG-related sequence (RS) and HIP/PAP, have so far been isolated. These Reg-related proteins are classified into four subfamilies according to their amino-acid sequences, but they share a similar structure and physiological function. Reg protein is a growth factor for pancreatic beta cells and also suggests that the administration of Reg protein could be used as another therapeutic approach for diabetes mellitus. Human REG cDNA which encodes a 166-amino acid protein with a 22-amino acid signal peptide. The amino acid sequence of human REG protein has 68% homology to that of rat Reg protein.
Reg I was found to be expressed mainly in pancreatic beta and acinoductular cells as well as gastric fundic enterochromaffin-like (ECL) cells. Reg I production in ECL cells is stimulated by gastrin, as well as by the proinflammatory cytokine, cytokine-induced neutrophil chemoattractant (CINC)-2Beta. In patients with chronic hypergastrinemia, Reg production is stimulated, with the increased proliferation of gastric mucosal cells. Patients with Helicobacter pylori infection also showed increased Reg production in the gastric mucosa, partly via increased plasma gastrin concentration and partly via increased proinflammatory cytokine production. The serum concentration of the reg-protein was significantly higher in patients with various pancreatic diseases than in normal controls, and was also significantly higher in patients with acute pancreatitis or chronic relapsing pancreatitis than in patients with chronic pancreatitis. Furthermore, the serum PSP/reg-protein concentration was also significantly increased in liver cirrhosis, choledocholithiasis, and various cancers of the digestive system.
Description:
The Recombinant Human REG-4 is manufactured with N-terminal fusion of His Tag. The Recombinant Human REG-IV His-Tagged Fusion Protein is 17.4 kDa protein containing 136 amino acid residues of the Human REG 4 and 12 additional amino acid residues – His Tag (underlined).
MKHHHHHHAS HMDIIMRPSC APGWFYHKSN CYGYFRKLRN WSDAELECQS YGNGAHLASI LSLKEASTIA EYISGYQRSQ PIWIGLHDPQ KRQQWQWIDG AMYLYRSWSG KSMGGNKHCA EMSSNNNFLT WSSNECNKRQ HFLCKYRP.
Source:
Escherichia Coli.
Formulation:
Filtered (0.4µm) and lyophilized from 0.5 mg/ml in 20mM Tris, pH 8.0.
Solubility:
Add deionized water to a working concentration approximately 0.5 mg/ml and let the lyophilized pellet dissolve completely. Product is not sterile! Please filter the product by appropriate sterile filter before using it in the cell culture.
Stability:
Store lyophilized protein at -20°C. Aliquot the product after reconstitution to avoid repeated freezing/thawing cycles. Reconstituted protein can be stored at 4°C for a limited period of time; it does not show any change after two weeks at 4°C. The lyophilized protein remains stable until the expiry date when stored at -20°C.
Purity:
Greater than 95% as determined by SDS-PAGE.
Applications:
Western blotting, ELISA.
Usage:
Prospec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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企业名称
上海希美化学有限公司
企业信息已认证
企业类型
信用代码
310228001203103
成立日期
2009-05-31
注册资本
10
经营范围
化工原料及产品(除危险化学品、监控化学品、烟花爆竹、民用爆炸物品、易制毒化学品),实验室设备,仪器仪表,金属制品,电子产品,机电产品销售,从事化工科技、计算机科技领域内技术开发、技术咨询、技术服务。【依法须经批准的项目,经相关部门批准后方可开展经营活动】
上海希美化学有限公司
公司地址
上海市松江区陆家圈路168弄113号
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