ISSN:
1573-5028
Keywords:
chloroplasts
;
DNA helicase
;
DNA replication
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract A DNA helicase activity was detected in extracts of purified chloroplasts from the SB-1 cell line of Glycine max and partially purified by column chromatography on DEAE cellulose, phosphocellulose, and single-stranded DNA cellulose. The chloroplast helicase has a DNA-dependent ATPase activity, and its strand displacement activity is strictly dependent upon the presence of a nucleoside triphosphate and Mg2+ or Mn2+. Strand displacement activity does not require a free unannealed single-strand or replication fork-like structure.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00019162
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