Pterin is a heterocyclic compound composed of a pteridine ring system, with a "keto group" (a lactam) and an amino group on positions 4 and 2 respectively. It is structurally related to the parent bicyclic heterocycle called pteridine .

Besides widely distributed tetrapyrroles, pterins are among the most significant natural monomeric chromophores in various animals and insects. They contribute to the pigmentation of insect wings, the eyes and skin of fish and reptiles, and are even found in human urine.

Pterins are low-molecular weight heterocyclic compounds widely distributed in living organisms, primarily as reduced coenzymes.

Pterin is one of a large family of bicyclic N-heterocycles called pteridines. Such molecules are widely found in Nature, having various forms to perform a variety of biological functions. This article describes the basic nomenclature of pterin, their biological roles, structure, chemical synthesis and redox reactivity.

Pteridine is a heterocyclic compound composed of a pyrimidine ring and a pyrazine ring; pterins are pteridines containing a carbonyl oxygen and an amino group on the pyrimidine ring. Pterins perform many roles in coloration in biology. Pterins also …

2-aminopteridin-4-ol is a 2-amino-4-hydroxypteridine. It is a tautomer of a 2-aminopteridin-4 (3H)-one and a 2-aminopteridin-4 (1H)-one. Pterin is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). Pterin has been reported in Morpho sulkowskyi and Arabidopsis thaliana with data available.

May 1, 2017 · In this review, we describe the variety of pterin functions in bacteria, compare and contrast structural and mechanistic differences, and illuminate promising avenues of future research. Keywords: cofactor; metabolism; pteridines; redox; regulation. Pterins are ubiquitous compounds produced by organisms in all domains of life.

Jan 7, 2025 · Pterin inhibits enzymes responsible for nucleotide synthesis which prevents cell division and leads to anti-inflammatory actions. It has a long duration of action and is generally given to patients once weekly. Pterin has a narrow therapeutic index. Do …

The meaning of PTERIN is any of various compounds that contain the bicyclic ring system characteristic of pteridine.

Pterin is a Pteridine with antibacterial activity, which is found in C. croceus. Pterin reduces the proliferation and biofilm production in E. coli, P. aeruginosa, and S. mutans. Pterin is promising for research of cancers and infections.