L-Hydroxyproline

Description

A non-essential amino acid. Can be isolated from gelatin. Hydroxyproline has not been reported as added to food in any of the NAS surveys.

Chemical properties

White crystalline powder

The Uses of L-Hydroxyproline

A natural constituent of animal structural proteins such as collagen and elastin. Several microorganisms producing proline trans-4- and cis-3-hydroxylase were discovered and these enzymes were applied to the industrial production of trans-4- and cis-3-hydroxy-L-proline.

The Uses of L-Hydroxyproline

A versatile reagent for the synthesis of neuroexcitatory kainoids and antifungal echinocandins.

The Uses of L-Hydroxyproline

hydroxyproline is a skin-conditioning amino acid. It is a component of collagen.

What are the applications of Application

trans-4-Hydroxy-L-proline is a versatile reagent for the synthesis of neuroexcitatory kainoids and antifungal echinocandins

Definition

ChEBI: An optically active form of 4-hydroxyproline having L-trans-configuration.

Production Methods

In the past L-Hydroxyproline was isolated by hydrolysis of animal collagen, e. g. gelatine or collagen, of which it is a major constituent. L-Hydroxyproline is an unnatural amino acid which is made in the body by hydroxylation of L-Proline. The presence of L-Hydroxyproline and proline are key to maintaining the stability of the tight collagen helix.
Today L-Hydroxyproline is manufactured by bio-catalysed hydroxylation of proline in bacteria. Together with its other isomers, L-Hydroxyproline is also used as an inter mediate for a range of pharmaceutical active ingredients.
Produced by hydroxylation of L-proline after protein synthesis. It is contained rich in collagen and elastin. Known to stabilization of triple-helix structure of collagen. Widely used as an intermediate for medicines.

General Description

Pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards

Biochem/physiol Actions

Trans-4-Hydroxy-L-proline is used in the organic synthesis of depsilairdin analogues, noncompetitive peptidomimetic inhibitors of multidrug resistance P-glycoprotein and 3-guaninyl-5-hydroxymethyl-2-pyrrolidinone (4) or 3-adeninyl-5-hydroxymethyl-2-pyrrolidinone (5) nucleoside analogues.

Purification Methods

Crystallise it from MeOH/EtOH (1:1). Separation from normal allo-isomer can be achieved by crystallisation of the copper salts [see Levine Biochemical Preparations 8 114 1961]. Separation from proline is achieved via the crystalline picrate, CdCl2, or acid ammonium rhodanate salts [see Greenstein & Winitz The Chemistry of the Amino Acids J. Wiley, Vol 3 p 2182 1961, Kapfhammer & Mohn Z Physiol Chem 306 76 1956]. [Beilstein 22/5 V 7.]