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Volumn 14, Issue 6, 2004, Pages 1559-1562

Metalated hybrid polymers as catalytic reagents for phosphate ester hydrolysis and plasmid modification

Author keywords

Catalyst; Cyclophosphazene; Hydrolysis; Pendant polymer; Phosphate ester; Zinc

Indexed keywords

ORGANOPHOSPHATE; PHOSPHATE; POLYMER; PYRAZOLE DERIVATIVE; ZINC COMPLEX;

EID: 1542284722     PISSN: 0960894X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.bmcl.2003.12.082     Document Type: Article
Times cited : (21)

References (49)
  • 10
    • 1542353292 scopus 로고    scopus 로고
    • note
    • 2 in dry methanol at room temperature for 36 h. The resulting metallated polymer was washed thoroughly with methanol (5×20 mL). From the AAS analysis, it was found that the amount of zinc present per gram polymer is equal to 11.5 mg.
  • 13
    • 1542263359 scopus 로고    scopus 로고
    • note
    • obs, concentration of hNPP was 5.5 mM.
  • 43
    • 1542293182 scopus 로고    scopus 로고
    • note
    • DNA cleavage: Cleavage reaction was performed by suspending 100 μg of CPPL-Zn (corresponding to 0.88 mM of zinc if the polymer was to be completely soluble in buffer) in sodium cacodylate buffer (8 mM, 20 μL, pH 7.5, 35°C), containing pBR322 supercoiled plasmid DNA (10 ng/μL, New England Biolabs). 4 μL of methanol was used for polymer wetting. Individual reactions were quenched by adding gel loading buffer (5 μL) containing EDTA (100 mM) at regural time intervals. Reactions were loaded onto 0.7% agarose gel, containing ethidium bromide (1 μg/mL), and were electrophoresed for 1 h at constant current (80 mA). Gels were imaged on Bio-Rad Gel Documentation System 2000.
  • 49
    • 1542263360 scopus 로고    scopus 로고
    • note
    • Lysozyme cleavage: CPPL-Zn (200 μg) was suspended in 20 μL of 10 mM cacodylate buffer (pH 7.5) containing lysozyme (25 μM) at 35°C. All reactions were quenched with 20 μL of sample buffer containing 20 μg of bromophenol blue and 20% of glycerol in 0.01 M of Tris-HCl buffer. Samples were loaded onto polyacrylamide gel (concentrating gel 4.5% and separating gel 12.5%) and electrophoresed for 8 h at constant voltage (80 V) in Tris-glycine buffer containing 0.1% sodium dodecyl sulphate. Gel was stained with Coomassie blue and destained prior to imaging on Bio-Rad Gel Doc 2000 system.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.