...Only cells with receptors can receive the substance as information, so even if there are many information substances in small quantities, the information is organized and delivered accurately. Peptide hormones such as insulin, β-melanotropin, chorionic gonadotropin, nerve growth factor (NGF), epidermal growth factor (EGF), somatomedin C, and nutrient transport proteins such as low density lipoprotein (LDL), egg yolk proteins (phosvitin, lipovitellin), haptoglobin, and transferrin bind to specific receptors on the cell membrane and are taken into the cytoplasm along with vesicles formed by invagination of the cell membrane called receptosomes (this process is called endocytosis). With this mechanism, even low concentrations of information substances of 10-8 to 10-10 mol can be concentrated and delivered to the target cell. ... *Some of the terminology that mentions "receptosome" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…受容体が分布する細胞だけがその物質を情報として受け入れられるので,少量で多数の情報物質があっても個々の情報は整理され,的確にとどけられているのである。インシュリン,β‐メラノトロピン,絨毛性性腺刺激ホルモン,神経成長因子(NGF),上皮細胞増殖促進因子(EGF),ソマトメジンCなどのペプチドホルモン,また,栄養物質の輸送タンパク質として,低比重リポタンパク質(LDL),卵黄タンパク質(ホスビチン,リポビテリン),ハプトグロビン,トランスフェリンなどは細胞膜上の特異的受容体に結合して,レセプトソームreceptosomeとよばれる細胞膜の陥入によってできた小胞とともに,細胞質中に取り込まれていく(この過程がエンドサイトーシスである)。この機構によれば10-8~10-10molという低濃度の情報物質をも濃縮して標的細胞に伝えられる。… ※「receptosome」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
>>: 《Recherches sur les poissons fossiles》 (English notation) Recherches sur les poissons fossiles
A passerine bird of the family Pelopidae. This fam...
A city on the shores of Lake Onandoga in central ...
A district designated for agricultural land within...
...The people of Mikuriya, who were engaged in fi...
This is the former town area in the northwest of T...
1772‐1844 French comparative anatomist. After the ...
...While there may certainly be exaggerations and...
...The green sunfish is green because of the gree...
…For radar applications, some antennas are used b...
British astronomer. After graduating from Cambridg...
〘Noun〙 The school of Wang Yangming in the Ming Dyn...
A theatrical term. It refers to the parts of a pla...
...The disciples kept this tradition, and on Lord...
… [Toshio Hamatani]. … *Some of the terminology t...
…20 to 30 species are distributed throughout the ...