alanine
アラニン
解説 Definition
alanine は、アミノ酸の一種であるアラニンという意味です。日本語のカタカナ語「アラニン」とほぼ同じ意味で、化学や生物学、栄養の文脈で使われます。
Alanine is a nonessential amino acid used by living organisms as a building block of proteins. It has a small, nonpolar side chain and is commonly discussed in chemistry, biochemistry, nutrition, and laboratory measurement.
覚え方のコツ Memory Tip
alanine はタンパク質を作るアミノ酸の一つで、日本語「アラニン」とほぼ一対一に対応します。語尾 -ine は化学物質名に多く、glycine や valine と同じ並びで覚えると便利です。alanine level、amino acid alanine、alanine in proteins のように、試料中の量やタンパク質構造を述べる科学的な場面と結び付けましょう。
Connect alanine with the familiar class word amino acid and with neighboring scientific terms such as glycine and valine. The ending -ine appears in many chemical names, so it helps signal that alanine is a substance rather than an everyday object. Learn it in combinations such as “alanine in proteins,” “alanine level,” and “the amino acid alanine.” Its small methyl side chain makes it a standard example when students compare amino-acid structures. For a Japanese learner, the pronunciation and meaning closely match アラニン, but the surrounding English collocations make the term usable in scientific sentences.
例文
The amino acid alanine is found in many proteins.
アラニンは多くのタンパク質に含まれるアミノ酸です。
The lab measured the alanine level in the sample.
研究室は試料中のアラニン量を測定しました。
Students learned how alanine contributes to protein structure.
学生たちはアラニンがタンパク質の構造にどう関わるかを学びました。
alanine の類義語・関連語
派生語
紛らわしい語
alanine の語源・成り立ち Etymology
ラテン語aldehyd(um)（アルデヒド）の短縮形al-に、化学接尾辞-anine（アミンの変形）を付けた造語。1850年にドイツの化学者シュトレッカーがアセトアルデヒドから合成した際に命名。関連語：aldehyde（アルデヒド）、glycine（グリシン）。化学物質の原料名が語源となっている。
The name alanine was coined in the nineteenth century after the amino acid was synthesized from acetaldehyde. Its beginning was taken from aldehyde, while its ending followed chemical naming patterns associated with amines and amino compounds. The name therefore reflects the substance and route involved in its early preparation rather than a traditional everyday word. Modern alanine is the standard English chemical name for this amino acid and is used internationally in biochemical descriptions of proteins and metabolism.
同じレベルの英単語をもっと
外部辞書で調べる
この単語を英単語クイズで覚えよう