US 12,442,728 B2
Preservative solution for heme protein, and method for stabilizing heme protein
Kozue Sakata, Tochigi (JP); Shin Sugo, Tochigi (JP); and Ryota Yasui, Tochigi (JP)
Assigned to EIKEN KAGAKU KABUSHIKI KAISHA, Tokyo (JP)
Filed by EIKEN KAGAKU KABUSHIKI KAISHA, Tokyo (JP)
Filed on Aug. 17, 2021, as Appl. No. 17/404,715.
Application 17/404,715 is a division of application No. 15/563,088, granted, now 11,125,659, previously published as PCT/JP2016/060597, filed on Mar. 31, 2016.
Claims priority of application No. 2015-070667 (JP), filed on Mar. 31, 2015.
Prior Publication US 2021/0381935 A1, Dec. 9, 2021
Int. Cl. G01N 33/53 (2006.01); C07K 14/805 (2006.01); G01N 1/28 (2006.01); G01N 33/531 (2006.01)
CPC G01N 1/28 (2013.01) [C07K 14/805 (2013.01); G01N 33/531 (2013.01)] 9 Claims
 
1. A preservative solution for a heme protein, comprising a disulfonic acid or a salt thereof and a heme protein,
wherein the disulfonic acid or a salt thereof is at least one selected from the group consisting of methanedisulfonic acid, ethanedisulfonic acid, butanedisulfonic acid, and a salt thereof; and
wherein the heme protein is selected from the group consisting of hemoglobin, myoglobin, and catalase.