Metabolic intermediate

Metabolic intermediates are molecules that are the precursors or metabolites of biologically significant molecules.^[1]

Although these intermediates are of relatively minor direct importance to cellular function, they can play important roles in the

allosteric regulation of enzymes

Clinical significance

Some can be useful in measuring rates of metabolic processes (for example,

v t e Glycogenesis and glycogenolysis metabolic intermediates
Glucose	Glucose 6-phosphate Glucose 1-phosphate
Uridine	Uridine diphosphate glucose Uridine triphosphate
Other	Glycogen Limit dextran

v t e Pentose phosphate pathway metabolic intermediates
Oxidative	6-Phosphogluconolactone 6-Phosphogluconate Ribulose 5-phosphate Ribose 5-phosphate
Nonoxidative	Xylulose 5-phosphate Sedoheptulose 7-phosphate Erythrose 4-phosphate

anabolism:	5-Hydroxytryptophan
catabolism:	5-Hydroxyindoleacetic acid

Thyroid hormone metabolic intermediates
Tyrosine / iodotyrosine	3-Iodotyrosine Diiodotyrosine
Thyronine / iodothyronine	3'-Monoiodothyronine 3,3'-Diiodothyronine 3,5-Diiodothyronine 3,3',5-Triiodothyronine (T₃) 3,3',5'-Triiodothyronine (Reverse T₃) 3,5,3',5'-Tetraiodothyronine (Thyroxine, T₄)
Thyronamine / iodothyronamine	3-Iodothyronamine 3,3',5-Triiodothyronamine
Iodothyroacetate / iodothyroacetic acid	Triiodothyroacetate (TRIAC)