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Hint: The amino acids which have sulphur molecules in their chemical structure are called sulphur containing amino acids. Two such acids are abbreviated as Cys and Met.
Complete answer:
Amino acids are organic compounds that have amine group \[\left( { - N{H_3}} \right)\] and carboxyl group \[\left( { - COOH} \right)\] in their basic chemical structure. This structure allows them to show the property of acid as well as an amine compound, hence called amino acids.
There are about 23 amino acids out of which 20 are considered as ‘building blocks of proteins’. Amino acids are linked with peptide bonds to form a polypeptide, and then polypeptides attain secondary, tertiary structures to make a complete protein.
Except for the basic structure, amino acids have various side chains.
Glycine is the simplest one with hydrogen as its side chain.
Two sulphur containing amino acids are Cysteine and Methionine.
The presence of sulphur enables them to form disulfide bonds in many cases.
Two basic amino acids are Arginine and Lysine.
These have nitrogen containing basic side chains.
Note: Chemical formula of methionine is \[{C_5}{H_{11}}N{O_2}S\]. It has simple sulphur in the side chain. Chemical formula of cysteine is \[{C_3}{H_7}N{O_2}S\]. It has an \[-SH\] group in its side chain which enables it to act as a nucleophile.
Complete answer:
Amino acids are organic compounds that have amine group \[\left( { - N{H_3}} \right)\] and carboxyl group \[\left( { - COOH} \right)\] in their basic chemical structure. This structure allows them to show the property of acid as well as an amine compound, hence called amino acids.
There are about 23 amino acids out of which 20 are considered as ‘building blocks of proteins’. Amino acids are linked with peptide bonds to form a polypeptide, and then polypeptides attain secondary, tertiary structures to make a complete protein.
Except for the basic structure, amino acids have various side chains.
Glycine is the simplest one with hydrogen as its side chain.
Two sulphur containing amino acids are Cysteine and Methionine.
The presence of sulphur enables them to form disulfide bonds in many cases.
Two basic amino acids are Arginine and Lysine.
These have nitrogen containing basic side chains.
Note: Chemical formula of methionine is \[{C_5}{H_{11}}N{O_2}S\]. It has simple sulphur in the side chain. Chemical formula of cysteine is \[{C_3}{H_7}N{O_2}S\]. It has an \[-SH\] group in its side chain which enables it to act as a nucleophile.
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