R Group: Difference between revisions
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An R-Group is a [[Side chain|side chain]] attached to the α-carbon of all [[Amino acid|amino acids]]. It decides the chemical versatility of the amino acid. For example, some R-Groups carry a charge, creating a [[Polar amino acids|polar]] molecule. Some R-groups are [[ | An R-Group is a [[Side chain|side chain]] attached to the α-carbon of all [[Amino acid|amino acids]]. It decides the chemical versatility of the amino acid. For example, some R-Groups carry a charge, creating a [[Polar amino acids|polar]] molecule. Some R-groups are [[Hydrophobic|hydrophobic]] or [[Hydrophilic|hydrophillic]]. Cysteine in particular has a sulfur atom in it's R-group, making it capable are forming disulfide bridges which are important in many proteins [[Tertiary Protein Structure|tertiary structures]]<ref>Alberts et al (2002) Molecular Biology of the Cell 4th edition.</ref>. | ||
[[Image:Amino acid.jpeg]]<br> | [[Image:Amino acid.jpeg]]<br> | ||
Revision as of 11:07, 6 December 2017
An R-Group is a side chain attached to the α-carbon of all amino acids. It decides the chemical versatility of the amino acid. For example, some R-Groups carry a charge, creating a polar molecule. Some R-groups are hydrophobic or hydrophillic. Cysteine in particular has a sulfur atom in it's R-group, making it capable are forming disulfide bridges which are important in many proteins tertiary structures[1].
References
- ↑ Alberts et al (2002) Molecular Biology of the Cell 4th edition.