- EMDB-37997: Cryo-EM structure of human alpha-fetoprotein -
+
データを開く
IDまたはキーワード:
読み込み中...
-
基本情報
登録情報
データベース: EMDB / ID: EMD-37997
タイトル
Cryo-EM structure of human alpha-fetoprotein
マップデータ
試料
複合体: Cryo-EM structure of human alpha-fetoprotein
タンパク質・ペプチド: Alpha-fetoprotein
リガンド: ZINC ION
リガンド: PALMITIC ACID
キーワード
N-glycosylation / Fatty acids / Metal ion / TRANSPORT PROTEIN
機能・相同性
機能・相同性情報
progesterone metabolic process / ovulation from ovarian follicle / homeostasis of number of cells / Post-translational protein phosphorylation / Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) / immune response / endoplasmic reticulum lumen / apoptotic process / extracellular space / metal ion binding / cytoplasm 類似検索 - 分子機能
Serum albumin/Alpha-fetoprotein/Afamin / ALB/AFP/VDB / Serum albumin, N-terminal / Serum albumin, conserved site / Serum albumin-like / Serum albumin family / Albumin domain signature. / Albumin domain profile. / serum albumin 類似検索 - ドメイン・相同性
ジャーナル: Commun Biol / 年: 2024 タイトル: Structural characteristics of alpha-fetoprotein, including N-glycosylation, metal ion and fatty acid binding sites. 著者: Kun Liu / Cang Wu / Mingyue Zhu / Junnv Xu / Bo Lin / Haifeng Lin / Zhongmin Liu / Mengsen Li / 要旨: Alpha-fetoprotein (AFP), a serum glycoprotein, is expressed during embryonic development and the pathogenesis of liver cancer. It serves as a clinical tumor marker, function as a carcinogen, immune ...Alpha-fetoprotein (AFP), a serum glycoprotein, is expressed during embryonic development and the pathogenesis of liver cancer. It serves as a clinical tumor marker, function as a carcinogen, immune suppressor, and transport vehicle; but the detailed AFP structural information has not yet been reported. In this study, we used single-particle cryo-electron microscopy(cryo-EM) to analyze the structure of the recombinant AFP obtained a 3.31 Å cryo-EM structure and built an atomic model of AFP. We observed and identified certain structural features of AFP, including N-glycosylation at Asn251, four natural fatty acids bound to distinct domains, and the coordination of metal ions by residues His22, His264, His268, and Asp280. Furthermore, we compared the structural similarities and differences between AFP and human serum albumin. The elucidation of AFP's structural characteristics not only contributes to a deeper understanding of its functional mechanisms, but also provides a structural basis for developing AFP-based drug vehicles.