ScienceJuly 8, 2026

proline

/ˈproʊliːn/

Definition

An alpha-amino acid that is a vital building block of proteins, specifically essential for the formation and maintenance of healthy skin structure.

Etymology

The name is derived from the Greek 'prōtos' (first) and the chemical suffix '-ine,' reflecting its initial identification. It was first isolated from the protein casein in 1901 by the German chemist Emil Fischer.

In the news

In the article, researchers observed that simulated microgravity environments suppress the body's ability to create proline. This reduction impairs the structure of skin fibroblasts, highlighting a potential health risk for astronauts.

NASA Spaceline Current Awareness List #1,206 2 July 2026 (Space Life Science Research Results)

Read the full article ↗

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