DECK 2 Flashcards
What are the two types of Proteins?
- Fibrous proteins
- Globular proteins
These are long, thread-like structures that are usually insoluble in water. they provide structural support and strength to tissue
Fibrous protein
This type of proteins is spherical and function in transport, enzymes and regulation
Globular protein
A compound that contains both an amino group ( R-NH2) and a carboxyl group ( R-C=O-OH)
Amino acid
An amino acid in which the amino group is on the carbon adjacent to the carboxyl group.
a-amino acid
Although a-amino acids are commonly written in the un-ionized form, they are more properly written in what form???
Zwitterion form (internal salt)
With the exception of glycine, all protein-derived amino acids have at least one ________ and are _______
-One stereocenter
-are chiral
The vast majority of a-amino acids have the ________ at the a-carbon.
L-configuration
______ and _____ contain a second stereocenter.
-Isoleucine ( Left )
-Threonine ( Right
______ and ______ contains Sulfur among the 20 amino acids.
-Methionine
-Cysteine