title: Molecular forms of acetylcholinesterase in the chick visual system. Collagenase-released 21.5 S and 16.5 S species.
mesh_terms: D000110:Acetylcholinesterase / Q000378:metabolism*; D000818:Animals; D002499:Centrifugation, Density Gradient; D002645:Chickens; D046911:Macromolecular Substances; D003012:Microbial Collagenase; D010446:Peptide Fragments / Q000378:metabolism; D011402:Pronase; D012160:Retina / Q000201:enzymology*; D003336:Tectum Mesencephali / Q000201:enzymology*
chemical_list: D046911:Macromolecular Substances; D010446:Peptide Fragments; D000110:Acetylcholinesterase; D011402:Pronase; D003012:Microbial Collagenase