Members of the class of compounds composed of AMINO ACIDS joined together by peptide bonds between adjacent amino acids into linear, branched or cyclical structures. OLIGOPEPTIDES are composed of approximately 2-12 amino acids. Polypeptides are composed of approximately 13 or more amino acids. PROTEINS are considered to be larger versions of peptides that can form into complex structures such as ENZYMES and RECEPTORS.
Peptide,Polypeptide,Polypeptides
D010759
Phosphorus Isotopes
Stable phosphorus atoms that have the same atomic number as the element phosphorus, but differ in atomic weight. P-31 is a stable phosphorus isotope.
Isotopes, Phosphorus
D011119
Polynucleotides
BIOPOLYMERS composed of NUCLEOTIDES covalently bonded in a chain. The most common examples are DNA and RNA chains.
Polynucleotide
D011511
Proteus
A genus of gram-negative, facultatively anaerobic, rod-shaped bacteria that occurs in the intestines of humans and a wide variety of animals, as well as in manure, soil, and polluted waters. Its species are pathogenic, causing urinary tract infections and are also considered secondary invaders, causing septic lesions at other sites of the body.
D002621
Chemistry
A basic science concerned with the composition, structure, and properties of matter; and the reactions that occur between substances and the associated energy exchange.
D003596
Cytosine
A pyrimidine base that is a fundamental unit of nucleic acids.
D004269
DNA, Bacterial
Deoxyribonucleic acid that makes up the genetic material of bacteria.
Bacterial DNA
D006147
Guanine
D000225
Adenine
A purine base and a fundamental unit of ADENINE NUCLEOTIDES.