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Volumn 6, Issue 24, 1996, Pages 2967-2970

The nature of interaction between the carboxylate of substrates and the guanidinium moiety of Arg-145 in carboxypeptidase a probed by inhibitors of the enzyme

Author keywords

[No Author keywords available]

Indexed keywords

2 BENZYL 2 FLUORO 3 HYDROXYPROPIONIC ACID; 2 BENZYL 3 HYDROXYPROPIONIC ACID; CARBOXYPEPTIDASE; ENZYME INHIBITOR; PROPIONIC ACID DERIVATIVE; UNCLASSIFIED DRUG;

EID: 0030591846     PISSN: 0960894X     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0960-894X(96)00541-0     Document Type: Article
Times cited : (5)

References (26)
  • 1
    • 4244088183 scopus 로고
    • Boyer, P. D, Ed.; Academic: New York
    • 1. Carboxypeptidase A is a prototypic zinc containing proteolytic enzyme which preferentially hydrolyzes off the C-terminal amino acid residue having a hydrophobic side chain, and as it represents a large family of zinc containing enzymes which are essential for various metabolic pathways, the enzyme has received much attention: (a) Hartsuck, J. A.; Lipscomb, W. N. In Enzymes, 3rd ed.; Boyer, P. D, Ed.; Academic: New York, 1971; Vol.3, pp 1 - 56.
    • (1971) Enzymes, 3rd Ed. , vol.3 , pp. 1-56
    • Hartsuck, J.A.1    Lipscomb, W.N.2
  • 3
    • 0011268366 scopus 로고    scopus 로고
    • note
    • 2. Other important binding forces involved in the enzyme-ligand complex formation are interactions of the hydrophobic side chain of the C-terminal amino acid residue with the primary recognition pocket and the coordination of scissile carbonyl oxygen to the active site zinc ion.
  • 9
    • 0014665768 scopus 로고
    • 4. Because of the unique property of the fluoro group, it has been extensively utilized as a substitute for a proton in the design of medicinal agents and enzyme inhibitors. For reviews: (a) Goldman, P. Science, 1969, 164, 1123-1130.
    • (1969) Science , vol.164 , pp. 1123-1130
    • Goldman, P.1
  • 15
    • 0011348361 scopus 로고    scopus 로고
    • note
    • 3: C, 60.60; H, 5.59. Found: C, 60.49; H, 5.59.
  • 16
    • 0011365653 scopus 로고    scopus 로고
    • note
    • 8 The pKa values were measured on a Kyoto Electronics AT 400 coupled with APB 410 using 0.10 N sodium hydroxide solution as a titrant.
  • 17
    • 77049143386 scopus 로고
    • 9. Dixon, M. Biochem. J. 1953, 55, 170-171.
    • (1953) Biochem. J. , vol.55 , pp. 170-171
    • Dixon, M.1
  • 18
    • 0011308625 scopus 로고    scopus 로고
    • note
    • 10. Although the C-F bond is capable of being involved in the interaction with proton donors, they are generally weaker than the corresponding C-O and C-N groups. Being somewhat larger than hydrogen, the fluorine may be get involved in unfavorable interactions with amino acid residues in the active site. However, these steric/electronic perturbations are thought to be insignificant considering the active site structure of the enzyme elucidated by the X-ray diffractometry.
  • 24
    • 0011345595 scopus 로고    scopus 로고
    • note
    • 1b


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.