PETERKOFSKY, B CONVERSION OF PROLINE TO COLLAGEN HYDROXYPROLINE IN A CELL-FREE SYSTEM FROM CHICK EMBRYO. [electronic resource] - The Journal of biological chemistry Dec 1963 - 3966-77 p. digital Publication Type: Journal Article ISSN: 0021-9258 Subjects--Topical Terms: Adenosine TriphosphateAntimetabolitesCarbon IsotopesCell-Free SystemChick EmbryoChromatographyCoenzymesCollagenDialysisHydroxyprolineMagnesiumOxygenPhosphorus IsotopesProlineProteins--metabolismRenal DialysisResearch