In:
FEBS Letters, Wiley, Vol. 349, No. 1 ( 1994-07-25), p. 139-143
Abstract:
Her3/erbB3 has been identified as a third member of the epidermal growth factor receptor (EGFR) family [(1989) Proc. Natl. Acad. Sci. USA 86, 9193–9197; (1990) Proc. Natl. Acad. Sci. USA 87, 4905–4909]. The natural ligand for Her3 has not been identified. Although recently NDF has been proposed as a specific ligand for Her4 [(1993) Nature 366, 473–475; (1993) J. Biol. Chem. 268, 18407–18410] , we report here that Her3 was phosphorylated on tyrosine not only in three breast carcinoma cell lines, MDAMB453, MDAMB468 and SKBR3, but also in Her3‐transfected CHO cells in response to NDF stimulation. In further studies, cells were reacted with 125 I‐labeled NDF and then chemically crosslinked. Immunoprecipitation with anti‐Her3 revealed a dense high M W band, greater than 400 kDa. The results suggest that NDF may be a ligand of Her3 and induces receptor hetero‐oligomerization.
Type of Medium:
Online Resource
ISSN:
0014-5793
,
1873-3468
DOI:
10.1016/0014-5793(94)00644-X
Language:
English
Publisher:
Wiley
Publication Date:
1994
detail.hit.zdb_id:
1460391-3
SSG:
12
Permalink