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Biologicals 2006 Dec;34(4):265-72

Comparative molecular characterization of gene segment 11-derived NSP6 from lamb rotavirus LLR strain used as a human vaccine in China.

Mohan KV, Glass RI, Atreya CD

Atreya CD (reprint author), US FDA, CBER, Div Viral Prod, Sect Viral Pathogenesis & Vaccine Adverse React, Bldg 29A,Room 2C-11,HFM-460,8800 Rockville Pike, Bethesda, MD 20892 USA US FDA, CBER, Div Viral Prod, Sect Viral Pathogenesis & Vaccine Adverse React, Bethesda, MD 20892 USA Ctr Dis Control & Prevent, Viral Gastroenteritis Sect, Resp & Enter Viruses Branch, Div Viral & Rickettsial Dis, Atlanta, GA 30333 USA


Sequence-length polymorphism is known for rotavirus genetic segment 11 (encodes non-structural protein, NSP6). With the exception of 11 strains that have the coding potential for a 98-residue NSP6, majority of the strains have the potential for a 92-residue NSP6. In nine strains, the coding potential for this protein is even shorter. This report focuses on the NSP6 gene nucleotide sequence of Lanzhou Lamb Rotavirus (LLR) strain and its comparative molecular characterization. The LLR strain is a G10 P12 type, which is in use as a licensed human vaccine in China. The LLR NSP6 was compared with 56 other rotaviral NSP6 sequences including a rhesus strain (RRV) available in the database. Analyses indicate that while RRV-NSP6 belongs to the majority (92-residue) group, the LLR NSP6 belongs to the 98-residue group. When the rotavirus NSP6 protein was expressed in cells as GFP fusion protein from human, simian and the LLR strains, they all demonstrated punctate cytoplasmic distribution and, contrary to the computer-aided prediction, the NSP6 did not undergo phosphorylation, which in itself is a novel observation for the rotavirus NSP6.

Category: Journal Article
PubMed ID: #16492399
Includes FDA Authors from Scientific Area(s): Biologics
Entry Created: 2011-10-04 Entry Last Modified: 2012-08-29