Diarrhea-Inducing Activity of Avian Rotavirus NSP4 Glycoproteins, Which Differ Greatly from Mammalian Rotavirus NSP4 Glycoproteins in Deduced Amino Acid Sequence, in Suckling Mice
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منابع مشابه
Higher Expression Level and Lower Toxicity of Genetically Spliced Rotavirus NSP4 in Comparison to the Full-Length Protein in E. coli
Background: Rotavirus group A (RVA) is recognized as a major cause of severe gastroenteritis in children and new-born animals. Nonstructural protein 4 (NSP4) is responsible for the enterotoxic activity of these viruses in the villus epithelial cells. Amino acids 114-135 of NSP4 are known to form the diarrhea-inducing region of this viral enterotoxin. Therefore, developing an NSP4 lacking the en...
متن کاملRotavirus Disrupts Calcium Homeostasis by NSP4 Viroporin Activity
Many viruses alter intracellular calcium homeostasis. The rotavirus nonstructural protein 4 (NSP4), an endoplasmic reticulum (ER) transmembrane glycoprotein, increases intracellular levels of cytoplasmic Ca(2+) ([Ca(2+)]cyto) through a phospholipase C-independent pathway, which is required for virus replication and morphogenesis. However, the NSP4 domain and mechanism that increases [Ca(2+)]cyt...
متن کاملA functional NSP4 enterotoxin peptide secreted from rotavirus-infected cells.
Previous studies have shown that the nonstructural glycoprotein NSP4 plays a role in rotavirus pathogenesis by functioning as an enterotoxin. One prediction of the mechanism of action of this enterotoxin was that it is secreted from virus-infected cells. In this study, the media of cultured (i) insect cells infected with a recombinant baculovirus expressing NSP4, (ii) monkey kidney (MA104) cell...
متن کاملبیان و خنثی‌سازی گلیکوپروتئین نوترکیب روتا ویروس میمونی((NSP4 با آنتی‌بادی اختصاصی در نوزاد موش
Background and Objectives: Rotaviruses are the most important cause of severe diarrhea in infants and young children in both developed and developing countries. Rotaviruses are members of the reoviridae family and contain 11 double- stranded RNA segments. Segment 10 encodes nonstructural glycoprotein NSP4, that can induce diarrhea in newborn mice. It has been suggested that NSP4 may be a key de...
متن کاملStudies of the role for NSP4 in the pathogenesis of homologous murine rotavirus diarrhea.
A rotavirus (RV) nonstructural protein, NSP4, has recently been proposed to function as an enterotoxin in the pathogenesis of RV diarrhea. The role of NSP4 in the pathogenesis of RV diarrhea was examined by infecting cystic fibrosis transmembrane conductance regulator (CFTR) knockout mice with virulent murine RV and by comparing deduced amino acid sequences of RV gene 10 encoding NSP4 from thre...
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ژورنال
عنوان ژورنال: Journal of Virology
سال: 2002
ISSN: 0022-538X,1098-5514
DOI: 10.1128/jvi.76.11.5829-5834.2002