title: High affinity calcium binding peptides from the gills, gut and kidneys of the freshwater eel (Anguilla anguilla).
abstract: We report the isolation of high affinity calcium-binding peptides from homogenates of gills, gut and kidneys of the freshwater eel Anguilla anguilla. These peptides show identical gel-filtration profiles on Biogel P-6, from which a molecular weight of 3500 was estimated. The average binding constant (Kf) for calcium is 7 . 10(7)M-1, and MgCl2 up to 5 mM does not displace calcium.
mesh_terms: D000818:Animals; D002118:Calcium / Q000378:metabolism*; D002352:Carrier Proteins / Q000378:metabolism*; D004524:Eels / Q000378:metabolism*; D005880:Gills / Q000378:metabolism; D007413:Intestinal Mucosa / Q000378:metabolism; D007668:Kidney / Q000378:metabolism; D007700:Kinetics; D008970:Molecular Weight
chemical_list: D002352:Carrier Proteins; D002118:Calcium