PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2946669-3 1986 When the ATPase fraction was applied to a Sepharose 4B column, 90% of the ATPase activity was recovered in a spectrin, actin, and band 4.1 complex fraction and none was detected in the spectrin fraction. Sepharose 42-51 erythrocyte membrane protein band 4.1 Homo sapiens 130-138 2940939-2 1986 The new procedure, using adsorption chromatography on hydroxylapatite crystals immobilized within a crosslinked agarose gel (HA-Ultrogel), is simple and reproducibly provides a high yield of band 4.1 which is essentially free of protein kinase. Sepharose 112-119 erythrocyte membrane protein band 4.1 Homo sapiens 191-199