CENP-Cは,硬化性硬化症の自己抗原であり,人間の内部のキネトコアプレートの構成要素です
H Saitoh1, J Tomkiel, C A Cooke
1Department of Cell Biology and Anatomy, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205.
Cell
|July 10, 1992
まとめ
研究者らは,cDNAクローンを用いてヒトセンターメアタンパク質C (CENP-C) を特定した. このタンパク質は,染色体分離に不可欠な内部のキネトコアプレート構造に不可欠です.
科学分野:
- 分子生物学は分子生物学である.
- 細胞生物学 細胞生物学
- 遺伝学 遺伝学とは
背景:
- セントロメア・オートアンチゲンは,自己免疫疾患の標的である.
- セントロメアタンパク質C (CENP-C) は,セントロメアの重要な成分です.
- CENP-Cの分子構造を理解することは,細胞分裂の研究に不可欠です.
研究 の 目的:
- 人間のCENP-CをコードするcDNAクローンを分離し,特徴づけること.
- 孤立したCENP-C.のアイデンティティと機能を確認する.
- キネトコア内のCENP-Cのサブセルラー局所を決定する.
主な方法:
- 重複するcDNAクローンの分離と特徴付け.
- ポリペプチドのサイズを評価するためのSDS-ポリアクリラミドゲル電泳.
- 免疫ブロッティングおよび免疫光のための融合タンパク質に対する抗体生成.
- 高解像度ローカリゼーションのための免疫電子顕微鏡.
主要な成果:
- ヒトCENP-C.をコードするcDNAクローンを成功裏に分離し,特徴づけました.
- ポリペプチドの移動と共通のエピトープによってクローン同一性が確認された.
- 免疫血栓とHeLa細胞センターメアでCENP-Cを認識する抗体を生成した.
- CENP-Cは内部のキネトコアプレートに局所されています.
結論:
- 孤立したcDNAクローンは,ヒトのCENP-Cを正確に表しています.
- 人間のCENP-Cは,内側のキネトコア板の構成要素である.
- この研究は,染色体分離におけるCENP-C機能を研究するための分子基盤を提供します.
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