... Department of Bioscience and Bioinformatics, Kyushu Institute of Technology, Iizuka, Fukuoka, Japan2 Department of Biological Sciences, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa, JapanAlthough ... the purification and partial characterization of a putative microtubule-associated protein (MAP) from bovine adrenal cor-tex with an approximate molecular mass of 250 kDa. The protein wasexpressed ... of 450 kDa, and appears as a hollow, roughly sphericalstructure with an external diameter of about 12–13 nm.The inner cavity, which can accommodate up to 4500Fe(III) atoms, has a diameter of about...