3-モルホリノプロパンスルホン酸

用途MOPS（3-モルホリノプロパンスルホン酸、英：3-(N-morpholino)propanesulfonic acid）は、緩衝剤として利用される有機化合物の一つ。生化学分野で広く用いられる。 20℃においてのpKaは6.15であり、溶液はpH 6.5～7.9および0.02～1 Mの範囲で緩衝液として機能する。 MOPSはポリアクリルアミドゲル電気泳動（PAGE）のバッファーとして推奨されている。 哺乳類細胞株の培養に20 mM以上のMOPSは適していない。

使用Due to its inert nature, 3-morpholinopropanesulfonic acid (MOPS) is widely used as a buffer in many biochemical studies. MOPS has been used as a cell culture additive component in lentiviral particle production, a buffering agent in microbial growth medium and nuclei extraction buffer, a component of Roswell Park Memorial Institute (RPMI) medium for diluting fungal inoculum, and a buffer in capillary-zone electrophoresis to test performance. It is also used for the dilution of proteins from algal samples.

一般的な説明3-(N-Morpholino)propane sulfonic acid (MOPS) is an N-substituted amino sulfonic acid with a morpholinic ring. MOPS is capable of buffering within a pH range of 6.5-7.9. MOPS is widely used in biological and biochemical studies due to its inert properties. It does not interact with any metal ions in solutions and has significant metal-buffer stability especially with copper (Cu), nickel (Ni), manganese (Mn), zinc (Zn), cobalt (Co) ions. MOPS buffer maintains the pH of the mammalian cell culture medium. MOPS functions to maintain pH in denaturing gel electrophoresis of RNA. MOPS can modify lipid interactions and influence the thickness and barrier properties of membranes. MOPS interacts with bovine serum albumin and stabilizes the protein. Hydrogen peroxide oxidizes MOPS slowly to N-oxide form.