Title

Partial purification and characterization of the DNA polymerase from the cyanelles of Cyanophora paradoxa

Document Type

Article

Publication Date

6-30-1997

Department

Chemistry and Biochemistry

Abstract

A DNA polymerase was partially purified and characterized from the photosynthetic organelles (cyanelles) of the protist, Cyanophora paradoxa. While cyanelles have several cyanobacterial features, such as a lysozyme-sensitive cell wall, unstacked thylakoids and light harvesting phycobilisomes, their genome size and structure resemble those of chloroplasts, suggesting that cyanelles occupy a unique intermediate position between chloroplasts and their phylogenetic ancestors, the cyanobacteria, When comparing the biochemical characteristics of the cyanelle DNA polymerase to those of its counterparts from higher plant chloroplasts and from a cyanobacterium, it is clear that the cyanelle enzyme resembles chloroplast DNA polymerases which are eukaryotic gamma-type enzymes. (C) 1997 Federation of European Biochemical Societies.

Publication Title

FEBS LETTERS

Volume

410

Issue

41308

First Page

509

Last Page

514