Abstract:
:In our previous paper, we reported that a monoclonal antibody (MAb) 710F, which recognizes a cell surface glycoprotein, induces morphological change in monocytic cells, promoting cellular adhesion and extensive spreading on tissue culture dishes [Koyama et al., Biochem, Biophys. Res. Commun., 168 (1990) 898-904]. We report here that the antigen was identified to be CD63, a member of tetraspan transmembrane protein family, by purification of the antigen molecule and subsequent cDNA cloning. The identity was further evidenced by sequential immunoprecipitation experiments using MAb 710F and anti-CD63, MAb2.28, and by their reactions with insect cells infected with baculovirus carrying CD63 expression cassette. Furthermore, the MAb2.28 exhibited cell-spreading activity, although to a lesser extent than MAb710F, suggesting the participation of CD63 in adhesion and spreading of monocytic cells.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Koyama Y,Suzuki M,Yoshida Tdoi
10.1006/bbrc.1998.8725subject
Has Abstractpub_date
1998-05-29 00:00:00pages
841-6issue
3eissn
0006-291Xissn
1090-2104pii
S0006-291X(98)98725-3journal_volume
246pub_type
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