Witkop, B Chemical cleavage of proteins. Selective fragmentations and modifications reveal structure. [electronic resource] - Science (New York, N.Y.) Oct 1968 - 318-26 p. digital Publication Type: Journal Article ISSN: 0036-8075 Standard No.: 10.1126/science.162.3851.318 doi Subjects--Topical Terms: Amino Acid SequenceBinding SitesBromineChemical PhenomenaChemistryChymotrypsinCyanidesEndopeptidasesGrowth HormoneIndicators and ReagentsModels, StructuralMuramidasePeptidesProteinsRibonucleasesTryptophangamma-Globulins