THE SUBTYPES OF THE MOUSE INOSITOL 1,4,5-TRISPHOSPHATE RECEPTOR ARE EXPRESSED IN A TISSUE-SPECIFIC AND DEVELOPMENTALLY SPECIFIC MANNER

被引:242
作者
NAKAGAWA, T [1 ]
OKANO, H [1 ]
FURUICHI, T [1 ]
ARUGA, J [1 ]
MIKOSHIBA, K [1 ]
机构
[1] NATL INST BASIC BIOL,DIV BEHAV & NEUROBIOL,OKAZAKI,AICHI 444,JAPAN
关键词
LIGAND-GATED CALCIUM CHANNEL; ALTERNATIVE SPLICING;
D O I
10.1073/pnas.88.14.6244
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Additional subtypes of the inositol 1,4,5-trisphosphate (InsP3) receptor are expressed in a tissue-specific and developmentally specific manner. They differ from the InsP3 receptor structure previously reported in two small variably spliced segments. One segment (SI) is located within the InsP3 binding site, whereas another segment (SII) is located near putative sites for phosphorylation and ATP binding to modulate InsP3 action on Ca2+ flux. Therefore, we speculate that selective use of InsP3 receptor subtypes permits a tissue-specific and developmentally specific expression of functionally distinct channels.
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页码:6244 / 6248
页数:5
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