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Mapping of T-Helper Epitopes of Rinderpest Virus Hemagglutinin Protein
- Source :
- Viral Immunology. 14:83-92
- Publication Year :
- 2001
- Publisher :
- Mary Ann Liebert Inc, 2001.
-
Abstract
- Rinderpest virus (RPV) is a highly contagious and often fatal disease of domestic and wild ruminants, caused by rinderpest virus of the genus Morbillivirus under the family Paramyxoviridae. Hemagglutinin (H) and fusion (F) proteins of this enveloped virus confer protective immunity against experimental challenge with virulent rinderpest virus. We have earlier demonstrated that immunization with a single dose of recombinant extracellular baculovirus expressing H protein elicits H-specific humoral and lymphoproliferative responses in cattle. The lymphoproliferative responses are predominantly BoLA class II restricted. In this work, we have analyzed lymphoproliferative responses of peripheral lymphocytes from immunized cattle to truncated H protein fragments expressed in E. coli for locating domains harboring T epitopes. One region (aa 113-182) recognized by immune $T_h$ cells is conserved in the H protein of measles virus, which was earlier shown to contain a dominant $T_h$ epitope in mouse. Synthetic peptides within this region of measles virus H protein were used to identify a $T_h$ epitope conserved in the H protein of RPV virus (aa 123-137) in cattle. A second $T_h$ epitope located at the C-terminus of RPV-H was mapped to the region corresponding to aa 512-609 using truncated protein fragments expressed in E. coli. The C-terminal epitope (aa 575-583) was mapped using synthetic peptides corresponding to measles virus H as well as RPV-H protein.
- Subjects :
- Rinderpest
Molecular Sequence Data
Immunology
Epitopes, T-Lymphocyte
Hemagglutinins, Viral
Hemagglutinin (influenza)
Virulence
Lymphocyte Activation
Rinderpest virus
Virus
Epitope
Measles virus
Viral Proteins
Immune system
Viral envelope
Virology
Chlorocebus aethiops
Animals
Amino Acid Sequence
Vero Cells
Glycoproteins
Microbiology & Cell Biology
biology
Viral Vaccines
T-Lymphocytes, Helper-Inducer
biology.organism_classification
Molecular biology
biology.protein
Molecular Medicine
Cattle
Peptides
Epitope Mapping
Gene Deletion
Subjects
Details
- ISSN :
- 15578976 and 08828245
- Volume :
- 14
- Database :
- OpenAIRE
- Journal :
- Viral Immunology
- Accession number :
- edsair.doi.dedup.....efe3f57d24d73ac10d5f564412212cbe