Selenocysteine is an uncommon amino acid, exists naturally in three domains of life as a building block of selenoproteins. It is a cysteine analogue, has an R group with the structure -CH2–SeH (pKg = 5). In an aqueous solution, pH = 7.0, selenocysteine would OA. be a fully ionized zwitterion with no net charge B. not be optically active O. be nonionic D.be found in proteins as D-selenocysteine

Selenocysteine is an uncommon amino acid, exists naturally in three domains of life as a building block of selenoproteins. It is a cysteine analogue, has an R group with the structure -CH2–SeH (pKg = 5). In an aqueous solution, pH = 7.0, selenocysteine would OA. be a fully ionized zwitterion with no net charge B. not be optically active O. be nonionic D.be found in proteins as D-selenocysteine

Chemistry & Chemical Reactivity

9th Edition

ISBN:9781133949640

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter16: Principles Of Chemical Reactivity: The Chemistry Of Acids And Bases

Section: Chapter Questions

Problem 116IL: Amino acids are an important group of compounds. At low pH, both the carboxylic acid group (CO2H)...

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