Substrate specificity of human prolyl-4-hydroxylase. 1998

M Tandon, and M Wu, and T P Begley, and J Myllyharju, and A Pirskanen, and K Kivirikko
Department of Chemistry, Cornell University, Ithaca, New York 14853, USA.

Proline analogs (3-F, 3-Cl, 3-Br, 3,3-cyclopropyl, 3,3-methylene, 3-Me, and 4-Me) were synthesized, incorporated into CbzGlyPheXGlyOEt, and tested as substrate analogues/mechanistic probes for the human prolyl-4-hydroxylase catalyzed hydroxylation reaction. With the exception of the 3-fluoroproline containing peptide, none of these peptides were substrates for the enzyme.

UI MeSH Term Description Entries
D007202 Indicators and Reagents Substances used for the detection, identification, analysis, etc. of chemical, biological, or pathologic processes or conditions. Indicators are substances that change in physical appearance, e.g., color, at or approaching the endpoint of a chemical titration, e.g., on the passage between acidity and alkalinity. Reagents are substances used for the detection or determination of another substance by chemical or microscopical means, especially analysis. Types of reagents are precipitants, solvents, oxidizers, reducers, fluxes, and colorimetric reagents. (From Grant & Hackh's Chemical Dictionary, 5th ed, p301, p499) Indicator,Reagent,Reagents,Indicators,Reagents and Indicators
D011392 Proline A non-essential amino acid that is synthesized from GLUTAMIC ACID. It is an essential component of COLLAGEN and is important for proper functioning of joints and tendons. L-Proline,L Proline
D011393 Procollagen-Proline Dioxygenase A mixed-function oxygenase that catalyzes the hydroxylation of a prolyl-glycyl containing peptide, usually in PROTOCOLLAGEN, to a hydroxyprolylglycyl-containing-peptide. The enzyme utilizes molecular OXYGEN with a concomitant oxidative decarboxylation of 2-oxoglutarate to SUCCINATE. The enzyme occurs as a tetramer of two alpha and two beta subunits. The beta subunit of procollagen-proline dioxygenase is identical to the enzyme PROTEIN DISULFIDE-ISOMERASES. Protocollagen Prolyl Hydroxylase,Procollagen Prolyl 4-Hydroxylase,4-Hydroxylase, Procollagen Prolyl,Dioxygenase, Procollagen-Proline,Hydroxylase, Protocollagen Prolyl,Procollagen Proline Dioxygenase,Procollagen Prolyl 4 Hydroxylase,Prolyl 4-Hydroxylase, Procollagen,Prolyl Hydroxylase, Protocollagen
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006900 Hydroxylation Placing of a hydroxyl group on a compound in a position where one did not exist before. (Stedman, 26th ed) Hydroxylations
D013329 Structure-Activity Relationship The relationship between the chemical structure of a compound and its biological or pharmacological activity. Compounds are often classed together because they have structural characteristics in common including shape, size, stereochemical arrangement, and distribution of functional groups. Relationship, Structure-Activity,Relationships, Structure-Activity,Structure Activity Relationship,Structure-Activity Relationships
D013379 Substrate Specificity A characteristic feature of enzyme activity in relation to the kind of substrate on which the enzyme or catalytic molecule reacts. Specificities, Substrate,Specificity, Substrate,Substrate Specificities
D015394 Molecular Structure The location of the atoms, groups or ions relative to one another in a molecule, as well as the number, type and location of covalent bonds. Structure, Molecular,Molecular Structures,Structures, Molecular

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