CHAPTER 2 STRUCTURES OF NUCLEIC ACIDS nucleic acids.
The nucleic acids are vital biopolymers found in all living things, where they function to encode, transfer, and express genes. These large molecules are called nucleic acids because they were first identified inside the nucleus of cells, however, they are also found in mitochondria and chloroplasts as well as bacteria and viruses.
Nucleic acids include ribonucleic acid, or RNA, and deoxyribonucleic acid, or DNA. DNA contains a different ribose sugar and one of its four nitrogenous bases is different, but otherwise DNA and RNA are identical. They both carry genetic information, but their roles are vastly different.
All biological functions depend on events that occur at the molecular level. These events are directed, modulated, or detected by complex biological machines, which are themselves large molecules or clusters of molecules. Included are proteins, nucleic acids, carbohydrates, lipids, and complexes of them. Many areas of biological science focus on the signals detected by these machines or the.
Nucleic acids are polymers composed of monomer units known as nucleotides. There are a very few different types of nucleotides. The main functions of nucleotides are information storage (DNA), protein synthesis (RNA), and energy transfers (ATP and NAD).
Topics considered to be appropriate include all impacts of non-canonical structures of nucleic acids, from biological activity to structure, from detection methods to their protein targeting, providing molecular insight and novel physiological and pathological functions or regulatory mechanisms of non-canonical DNA structures and their protein recognition.
Nucleic acids are linear polymers. This means that specifying its sequence is the same identifying the covalent arrangement of the whole structure. Thus, nucleic acid sequence is also known as primary structure. This sequence is important since it can represent information.
STRUCTURE OF NUCLEIC ACID Nucleic acid structure refers to the structure of nucleic acids such as DNA and RNA. Chemically speaking, DNA and RNA are very similar. Nucleic acid structure is often divided into four different levels: primary, secondary, tertiary and quaternary 1: Primary structure: Primary structure consists of a linear sequence of nucleotides that are linked together by.