Coronaviruses (CoV) are a large group of enveloped positive-sense RNA viruses. They belong to subfamily Coronavirinae, in the family of Coronaviridae, of the order of Nidovirales. Coronaviruses infect a number of mammalian species such as dogs. Two types of Coronaviruses have been identified in dogs: CCoV type I, and CCoV type II. Both the types of viruses are eligible to be detected in the same dog, however, due to genetic recombination events, CCoV type II is further divided into two sub-types: CCoV type IIa and CCoV type IIb. About 20% of the canine coronavirus infections are of CCoV type I, whereas 44% of the infections are of CCoV type II. Coronavirus infections in dogs are limited to the intestine, and results in only mild enteritis.

rPeptide (www.rpeptide.com) 是一家生物化学公司，坐落于美国乔治亚州，与雅典毗邻。该公司研发试剂是市场领跑者，主要 产品涉及领域为老年性痴呆症与帕金森综合症研究使用的重组蛋白，重组多肽，抗体以及试剂等等。该公司提供一系列外包服务，从分子生物学，蛋白表达与蛋白纯 化到13C与15N 统一标记蛋白与多肽。同时， rPeptide 技术平台可解决可溶性多肽/蛋白（例如：β-淀粉样蛋白、廋蛋白、前胰岛素）在大肠杆菌中表达等历史性难题。 产品清单： 商品名称    商品货号    商品品牌 Beta-Amyloid (1-40), Mouse, Rat    A-1007-1    rPeptide Beta-Amyloid (1-40), Starter Kit    A-1150-1    rPeptide Beta-Amyloid (1-40), Starter Kit    A-1150-2    rPeptide Beta-Amyloid (1-40), Ultra Pure, HCl    A-1156-1    rPeptide Beta-Amyloid (1-40), Ultra Pure, HCl    A-1156-2    rPeptide Beta-Amyloid (1-40), Ultra Pure, HFIP    A-1153-1    rPeptide Beta-Amyloid (1-40), Ultra Pure, HFIP    A-1153-2    rPeptide Beta-Amyloid (1-40), Ultra Pure, NaOH    A-1155-1    rPeptide Beta-Amyloid (1-40), Ultra Pure, NaOH    A-1155-2    rPeptide Beta-Amyloid (1-40), Ultra Pure, TFA    A-1001-1    rPeptide Beta-Amyloid (1-40), Ultra Pure, TFA    A-1001-2    rPeptide Beta-Amyloid (1-40, D23N)    A-1013-1    rPeptide Beta-Amyloid (1-40, D23N)    A-1013-2    rPeptide Beta-Amyloid (1-40, F4W)    A-1011-1    rPeptide Beta-Amyloid (1-40, F4W)    A-1011-2    rPeptide Beta-Amyloid (1-40, Scrambled)    A-1003-1    rPeptide Beta-Amyloid (1-40, Scrambled)    A-1003-2    rPeptide Beta-Amyloid (1-40, Y10W)    A-1012-1    rPeptide Beta-Amyloid (1-40, Y10W)    A-1012-2    rPeptide Beta-Amyloid (1-42), Mouse, Rat    A-1008-1    rPeptide Beta-Amyloid (1-42), Mouse, Rat    A-1008-2    rPeptide Beta-Amyloid (1-42), Starter Kit    A-1160-1    rPeptide Beta-Amyloid (1-42), Starter Kit    A-1160-2    rPeptide Beta-Amyloid (1-42), Ultra Pure, HCl    A-1166-1    rPeptide Beta-Amyloid (1-42), Ultra Pure, HCl    A-1166-2    rPeptide Beta-Amyloid (1-42), Ultra Pure, HFIP    A-1163-1    rPeptide Beta-Amyloid (1-42), Ultra Pure, HFIP    A-1163-2    rPeptide Beta-Amyloid (1-42), Ultra Pure, NaOH    A-1165-1    rPeptide Beta-Amyloid (1-42), Ultra Pure, NaOH    A-1165-2    rPeptide