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M94A0079.TXT
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1994-10-01
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Document 0079
DOCN M94A0079
TI Use of TrpE fusion protein to identify antigenic domains within the BIV
envelope protein.
DT 9412
AU Chen P; Liu ZQ; Wood C; Department of Microbiology, University of
Kansas, Lawrence 66045.
SO J Virol Methods. 1994 May;47(3):331-43. Unique Identifier : AIDSLINE
MED/94351053
AB Nine different recombinant clones spanning various regions of the bovine
immunodeficiency-like virus (BIV) envelope gene open reading frame were
generated. These clones span the entire external glycoprotein as well as
the transmembrane glycoprotein region. These proteins were expressed as
fusions to the TrpE protein in E. coli. The levels of recombinant
protein expressed varied, some clones expressed enough protein that can
be detected in a Coomassie blue-stained gel, whereas other proteins
could only be detected by Western blot analyses. A recombinant env
protein representing the extracellular domain of the env protein was
detected by BIV-infected bovine sera. In addition, a 134 amino acid
peptide which may represent a major immunoreactive epitope was
identified. This peptide is located at the amino terminus of the
transmembrane glycoprotein and was specifically recognized by all
BIV-infected calf sera tested. The identification of this epitope and
the use of recombinant envelope protein will enable us to develop a more
effective screening test to study the epidemiology of BIV infection.
DE Animal Antigenic Determinants/*ANALYSIS Cattle Cloning, Molecular
Escherichia coli/GENETICS Immunoblotting Immunodeficiency Virus,
Bovine/GENETICS/*IMMUNOLOGY Lentivirus Infections/MICROBIOLOGY
Recombinant Fusion Proteins/GENETICS/IMMUNOLOGY Support, Non-U.S. Gov't
Support, U.S. Gov't, P.H.S. Viral Envelope
Proteins/GENETICS/*IMMUNOLOGY JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).