cysteine
Amino Acids
Amino group(NH2), Carboxyl group(CO2), and the side chain, represented by 'R' H .....H ....O ..\ ....| ...// ...N--C--C ../.... | ...\ H..... R ....O-
Amino acids have a generalised structure consisting of an amino group (-NH2), a carboxyl group (-COOH), and a side chain represented by the letter "R". The side chain can vary among different amino acids, giving them distinct chemical properties. The central carbon atom (alpha carbon) connects the amino group, carboxyl group, and the side chain, forming the backbone of the amino acid.
carboxyl group, amino group, side chain
Thiol.
R- group - or Side Chain.
carboxyl group, amino group, side chain
The side chain or R-group
basing on the polarity its divided into 3types 1, amino acids with uncharged polar side chain 2, amino acids with polar side chain 3, amino acids with charged nonpolar side chain
Yes. The alpha carbon, from where the amino group, the carboxylic group and the side chain (or R group) are attached.
The side chain. Each proteinogenic amino acid has a hydrogen, a carboxylic acid, and an amine group on a central carbon, with a side chain that varies between the acids.
carboxly group+amino group+side chain