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T/t複合体のトランス相互作用因子の遺伝的関係に関する分子解析

A K Alton, L M Silver, K Artzt

|November 27, 1980

まとめ

マウスのT/t複合体は,発達と生殖に影響を及ぼします. 研究によると,タンパク質p63/6.9をコードするTCP-1遺伝子は,以前の仮説にもかかわらず,T局部には位置していない可能性が高い.

科学分野:

遺伝学遺伝学とは
発達生物学発達生物学とは
分子生物学は分子生物学である.

背景:

マウス染色体17のT/t複合体は,胚の発達,精子生成,再結合に影響する.
T/t複合体内のTcp-1という遺伝子は,細胞表面タンパク質p63/6.9.9をコードする.
野生型Tcp-1bはp63/6.9bを生成し,変異型Tcp-1aはより酸性のあるp63/6.9aを生成する.

研究の目的:

Tcp-1遺伝子の正確な遺伝的位置を調べるために.
T局部がp63/6.9タンパク質をコードする責任があるかどうかを判断する.

主な方法:

丸細胞タンパク質の二次元ゲル電泳.
再結合イベントからの部分的なtハプロタイプの分析.
支配的なT局所変異によるp63/6.9タンパク質の特徴化.

主要な成果:

Tcp-1aは,尾の相互作用因子 (tT) と相関することが判明した.
7つの独立に派生した支配的なT局部変異のタンパク質は,野生型p63/6.9.9と区別することができなかった.
これは,Tcp-1がT位置に位置していないことを示唆しています.

結論:

p63/6.9タンパク質の産生を司るTcp-1遺伝子は,T局部に位置する確率は低い.
この発見は,T/t複合体とその関連遺伝子の遺伝的マッピングを洗練しています.

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