Epidermal growth factor and a new derivative. Rapid isolation procedures and biological and chemical characterization.

Amino Acids/analysis Animals Animals, Newborn Arginine/analysis Biological Assay Carboxypeptidases Chromatography, DEAE-Cellulose Chromatography, Gel Evaluation Studies as Topic Eyelids/drug effects Growth Substances/analysis,isolation & purification,pharmacology Leucine/analysis Male Methods Mice Peptides/analysis,isolation & purification,pharmacology Skin/drug effects,growth & development Submandibular Gland/analysis Ultrafiltration

Amino Acids Growth Substances Peptides Arginine Carboxypeptidases Leucine