Question

the aminoacid sequence in protein is referred to as the:

primary structure

secondary structure

pl

configuration

conformation

which one?

Answer 1

The amino acid sequence in a protein is called as primary structure.These amino acids are joined by peptide bonds.

Secondary structure arise due to arrangement of atoms.They are stabilised by hydrogenbond between carboxyl oxygen and hydrogen of amide.There are alpha helix and beta pleated sheath as the most common secondary structures.

Isoelectric point is the one in which the net charge on the protein is zero that is the total positive charge is equal to the total negative charge.pI is used for the separation of proteins.

The amino acids are asymmetrical have four different functional groups and are called chiral except amino acid glycine.They have two configuration that are non superimposable mirror images.These are called as enantiomers.

The confirmation results in three dimensional arrangement,quarternary structure of the multimeric protein. So the right answer is primary structure option no 1.