RRC ID 41843
著者 Inada Y, Nakane T, Chiba S.
タイトル Relationship between ligand binding and YIPP motif in the C-terminal region of human AT1 receptor.
ジャーナル Biochim Biophys Acta
Abstract The YIPP (tyrosine-isoleucine-proline-proline, amino acids 319-322) motif within the C-terminal part of the human AT(1) receptor is associated with angiotensin II (AII)-induced activation of the Jak-STAT pathway and phospholipase Cgamma1 phosphorylation. We report here that mutations of the YIPP motif strongly affect ligand-binding to the receptor. We analysed AT(1) receptors of the wild type (WT) and 11 mutants with a FLAG-epitope-tag within their C-terminal portion. Mutations of the "P-P" amino acid sequence of this motif decreased both AII binding and the AII-induced intracellular Ca(2+) transients. Mutant and WT receptors were expressed equally in the cell membrane and were localized within the plasma membrane. These results suggest that the "P-P" amino acid sequence within the YIPP motif is important for AII binding to the AT(1) receptor.
巻・号 1640(1)
ページ 33-41
公開日 2003-4-7
DOI 10.1016/s0167-4889(02)00400-7
PII S0167488902004007
PMID 12676352
MeSH Amino Acid Sequence Angiotensin II / metabolism Animals Blotting, Western COS Cells Calcium / metabolism Humans Iodine Radioisotopes Ligands Molecular Sequence Data Mutation Phospholipase C gamma Phosphorylation Proline / chemistry Radioligand Assay Receptor, Angiotensin, Type 1 Receptors, Angiotensin / chemistry Receptors, Angiotensin / genetics Receptors, Angiotensin / metabolism* Type C Phospholipases / metabolism
IF 3.411
引用数 6
WOS 分野 BIOCHEMISTRY & MOLECULAR BIOLOGY CELL BIOLOGY
リソース情報
ヒト・動物細胞 COS-7(RCB0539)