TY - JOUR
T1 - Possible binding sites for inositol 1,4,5-trisphosphate in macrophages
AU - Ishimatsu, Toyohiro
AU - Kimura, Yuichi
AU - Ikebe, Tetsuro
AU - Yamaguchi, Koji
AU - Koga, Toshitaka
AU - Hirata, Masato
N1 - Funding Information:
This study was supported in part by the Naito Foundation and a Grant-in-Aid for Scientific Research from the Ministry of Education, Science and Culture of Japan. We thank Dr. H. Aoyagi (Department of Chemistry, Faculty of Science, Kyushu University) for suggestions in preparing the N-hydroxysuccinimide ester of p-azidobenzoic acid, AB E A and ASB A.
PY - 1988/9/30
Y1 - 1988/9/30
N2 - We reported that an arylazide derivative of inositol 1,4,5-trisphosphate (InsP3) caused irreversible InsP3-induced Ca2+ release from saponin-permeabilized macrophages after photoirradiation(1). To determine the specific receptors for InsP3, presumably present on the endoplastic reticulum, we synthesized isotope-labeled arylazide derivatives of InsP3; InsP3 was coupled with p-azidobenzoyl [3h]β -alanine InsP3-[3h]ABβ A ) or p-[125i]azidosalicyl β-alanine (InsP3-[125I]ASβ A). We report here that three proteins may be associated with the Ca2+ releasing mechanism, in photoirradiated saponin-permeabilized macrophages and in the microsomal fraction.
AB - We reported that an arylazide derivative of inositol 1,4,5-trisphosphate (InsP3) caused irreversible InsP3-induced Ca2+ release from saponin-permeabilized macrophages after photoirradiation(1). To determine the specific receptors for InsP3, presumably present on the endoplastic reticulum, we synthesized isotope-labeled arylazide derivatives of InsP3; InsP3 was coupled with p-azidobenzoyl [3h]β -alanine InsP3-[3h]ABβ A ) or p-[125i]azidosalicyl β-alanine (InsP3-[125I]ASβ A). We report here that three proteins may be associated with the Ca2+ releasing mechanism, in photoirradiated saponin-permeabilized macrophages and in the microsomal fraction.
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U2 - 10.1016/S0006-291X(88)81263-4
DO - 10.1016/S0006-291X(88)81263-4
M3 - Article
C2 - 3263123
AN - SCOPUS:0023801696
SN - 0006-291X
VL - 155
SP - 1173
EP - 1180
JO - Biochemical and Biophysical Research Communications
JF - Biochemical and Biophysical Research Communications
IS - 3
ER -