Table of Contents
What Proteins make up eye color?
Hect domain and RCC1-like domain-containing protein 2 (HERC2) and OCA2. Finally, two major genes are responsible for eye color: HERC2 and OCA2. During the first studies to classify genes for eye color, OCA2 was believed to be the dominating factor for eye color determination.
Are proteins responsible for eye color?
Two of these genes, OCA2 and HERC2, play a significant role in eye color selection. Although the OCA2 gene produces the protein responsible for melanin, the HERC2 gene controls the OCA2 gene by turning its protein production on and off.
What is the complex protein which determines eye color?
One region of chromosome 15 contains two genes located near to each other that play major roles in determining eye color. One gene, called OCA2, codes for a protein called P protein, which is involved in melanosome maturation and affects the amount and quality of melanin stored in the iris.
What are the colors of an amino acid?
Amino Colors The RasMol aminocolor scheme colors amino acids according to traditional amino acid properties. The purpose of coloring is to identify amino acids in an unusual or surprising environment. The outer parts of a protein that are polar are visible (bright) colors and non-polar residues darker.
How are amino acids distinguished by their are groups?
They are distinguished by the attached functional group R. Of the twenty amino acids that make up proteins, six of them have hydrocarbon R-groups . Except for phenylalanine, these are aliphatic hydrocarbons, containing no benzine ring. The simplest of the amino acids, glycine, has just a hydrogen atom in the position of the R-group.
How are polar side chains related to amino acids?
Polar Side Chains: Side chains which have various functional groups such as acids, amides, alcohols, and amines will impart a more polar character to the amino acid. The ranking of polarity will depend on the relative ranking of polarity for various functional groups as determined in functional groups.
What are the structural properties of an amino acid?
Generally, amino acids have the following structural properties: A carbon (the alpha carbon) bonded to the four groups below: A hydrogen atom (H) A Carboxyl group (-COOH) An Amino group (-NH2) A “variable” group or “R” group