title: Synthetic thyrotropin-releasing factor analogs. 3. Effect of replacement or modification of histidine residue on biological activity.
mesh_terms: D000596:Amino Acids / Q000138:chemical synthesis; D000818:Animals; D002855:Chromatography, Thin Layer; D006639:Histidine / Q000138:chemical synthesis*; D007259:Infrared Rays; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D051379:Mice; D010455:Peptides / Q000138:chemical synthesis; D011487:Protein Conformation; D013057:Spectrum Analysis; D013329:Structure-Activity Relationship; D013973:Thyrotropin-Releasing Hormone / Q000138:chemical synthesis*
chemical_list: D000596:Amino Acids; D010455:Peptides; D006639:Histidine; D013973:Thyrotropin-Releasing Hormone