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Analysis of ligand binding to kringles 4 and 5 fragments from human plasminogen. 1989

V V Novokhatny, and Matsuka YuV, and S A Kudinov
Institute of Biochemistry, Academy of Sciences of the Ukrainian, Kiev, USSR.

The interaction of the isolated kringles 4 and 5 from human plasminogen with 6-aminohexanoic acid, pentylamine, pentanoic acid and arginine has been quantitatively characterized by scanning calorimetry and fluorescent spectroscopy. It has been found that the ligands with the positively charged group have a good binding ability while pentanoic acid in comparison with 6-aminohexanoic acid being devoid of amino group does not interact with the kringles under study. The positively charged group of the ligand is suggested to play a crucial role in ligand binding with the lysine-binding site.

UI MeSH Term Description Entries
D007700 Kinetics The rate dynamics in chemical or physical systems.
D008239 Lysine An essential amino acid. It is often added to animal feed. Enisyl,L-Lysine,Lysine Acetate,Lysine Hydrochloride,Acetate, Lysine,L Lysine
D010421 Pentanoic Acids Straight-chain CARBOXYLIC ACIDS with the general formula C5H10O2. Acids, Pentanoic
D010958 Plasminogen Precursor of plasmin (FIBRINOLYSIN). It is a single-chain beta-globulin of molecular weight 80-90,000 found mostly in association with fibrinogen in plasma; plasminogen activators change it to fibrinolysin. It is used in wound debriding and has been investigated as a thrombolytic agent. Profibrinolysin,Glu-Plasminogen,Glutamic Acid 1-Plasminogen,Glutamyl Plasminogen,1-Plasminogen, Glutamic Acid,Glu Plasminogen,Glutamic Acid 1 Plasminogen,Plasminogen, Glutamyl
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000588 Amines A group of compounds derived from ammonia by substituting organic radicals for the hydrogens. (From Grant & Hackh's Chemical Dictionary, 5th ed) Amine
D001120 Arginine An essential amino acid that is physiologically active in the L-form. Arginine Hydrochloride,Arginine, L-Isomer,DL-Arginine Acetate, Monohydrate,L-Arginine,Arginine, L Isomer,DL Arginine Acetate, Monohydrate,Hydrochloride, Arginine,L Arginine,L-Isomer Arginine,Monohydrate DL-Arginine Acetate
D001665 Binding Sites The parts of a macromolecule that directly participate in its specific combination with another molecule. Combining Site,Binding Site,Combining Sites,Site, Binding,Site, Combining,Sites, Binding,Sites, Combining
D013816 Thermodynamics A rigorously mathematical analysis of energy relationships (heat, work, temperature, and equilibrium). It describes systems whose states are determined by thermal parameters, such as temperature, in addition to mechanical and electromagnetic parameters. (From Hawley's Condensed Chemical Dictionary, 12th ed) Thermodynamic
D015119 Aminocaproic Acid An antifibrinolytic agent that acts by inhibiting plasminogen activators which have fibrinolytic properties. 6-Aminocaproic Acid,6-Aminohexanoic Acid,epsilon-Aminocaproic Acid,Amicar,CY-116,Capralense,Capramol,Caproamin,Caprocid,Caprolest,Epsamon,Epsikapron,Hemocaprol,Hexalense,6 Aminocaproic Acid,6 Aminohexanoic Acid,CY 116,CY116,epsilon Aminocaproic Acid

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