Interaction of Amino Acids with Cathode and Anode in Electrophoresis

Jan 10, 2026

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This study examines the behavior of various amino acids under electrophoretic conditions, specifically how cathodes attract positively charged amino acids like Arginine (Arg), Glycine (Gly), and Alanine (Ala), while anodes attract negatively charged amino acids such as Aspartic acid (Asp) and Glutamic acid (Glu). The research highlights that nonpolar amino acids like Leucine (Leu) and Isoleucine (Ile) interact more with the mobile phase, enhancing their mobility in electrophoresis. Understanding these interactions is crucial for optimizing separation techniques in biochemical applications.

1 amino acids2 electrophoresis3 cathode4 anode5 nonpolar interactions6 mobility phase7 biochemical separation8 charge attractiontext

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Interaction of Amino Acids with Cathode and Anode in Electrophoresis

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Cathode (attracts (+) amino acids) Arg Gly Ala Leu,Ile Thr More nonpolar amino acids, interact more with the mobile phase and move more. Ser Trp Pro Tyr Phe Val Glu Met Asp Anode (attracts (-) amino acids)
Cathode (attracts (+) amino acids) Arg * As per solutions manual Gly Ala Val Leu,Ile Thr More nonpolar amino acids, interact more with the mobile phase and move more. Ser Pro Tyr Phe Trp Glu Met Asp Anode (attracts (-) amino acids)