Sweet proteins lysozyme and thaumatin are protein-type agonists for the calcium-sensing receptor.
Sweet proteins lysozyme and thaumatin are protein-type agonists for the calcium-sensing receptor.
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甜蛋白溶菌酶和索马甜是钙敏感受体的蛋白质型激动剂。
DOI:
10.1016/j.bbrc.2019.10.111
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Ito K.
中科院分区:
文献类型:
--
作者:
Yamamoto M;Terada Y;Motoyama T;Saito T;Ito K.
In addition to the maintenance of Ca2+homeostasis, the calcium-sensing receptor (CaSR) is involved in many diverse physiological functions in the mammalian body. The receptor works as akokumitaste receptor in taste buds and as a nutrient sensor in the gut, where it regulates the secretion of glycemic response and appetite-related hormones. To identify novel human CaSR (hCaSR) activators from food ingredients, we conducted a screening using a cell-based hCaSR assay. Hen egg-white lysozyme, which is a sweet protein, was found to be a novel orthosteric agonist of hCaSR with an EC50value of 592 μM. Lysozyme hydrolysate was not able to activate hCaSR, thus suggesting that the protein structure of lysozyme is necessary for hCaSR activation. Thaumatin, which is another sweet protein, also activated hCaSR with an EC50value of 71 μM. This is the first report that shows hCaSR activation by proteins with molecular weights exceeding 10,000 Da. These results provide a new avenue for the development of hCaSR activators, which could be applicable in food or drugs that modulate taste perception, appetite, or glucose tolerance, in addition to Ca2+homeostasis.
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DOI:
--
发表时间:
2005
期刊:
Chemical Sensors
影响因子:
--
作者:
T. Masuda;N. Ide;N. Kitabatake
通讯作者:
N. Kitabatake
DOI:
10.1073/pnas.97.9.4814
发表时间:
2000-04-25
影响因子:
11.1
作者:
Conigrave, AD;Quinn, SJ;Brown, EM
通讯作者:
Brown, EM
DOI:
10.1016/s0006-291x(02)02133-2
发表时间:
2002-09-13
影响因子:
3.1
作者:
McLarnon, SJ;Holden, D;Riccardi, D
通讯作者:
Riccardi, D
DOI:
10.1007/s00018-006-6077-8
发表时间:
2006
期刊:
Cellular and Molecular Life Sciences CMLS
影响因子:
--
作者:
P. Temussi
通讯作者:
P. Temussi
DOI:
--
发表时间:
1994
期刊:
Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association
影响因子:
--
作者:
Brown,EM;Pollak,M;Riccardi,D;Hebert,SC
通讯作者:
Hebert,SC