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Eukaryotic Cell, June 2003, p. 646-650, Vol. 2, No. 3
1535-9778/03/$08.00+0     DOI: 10.1128/EC.2.3.646-650.2003
Copyright © 2003, American Society for Microbiology. All Rights Reserved.

Histone-Like Proteins of the Dinoflagellate Crypthecodinium cohnii Have Homologies to Bacterial DNA-Binding Proteins

J. T. Y. Wong,* D. C. New,{dagger} J. C. W. Wong, and V. K. L. Hung

Department of Biology, Hong Kong University of Science and Technology, Kowloon, Hong Kong, People's Republic of China

Received 22 October 2002/ Accepted 3 January 2003

The dinoflagellates have very large genomes encoded in permanently condensed and histoneless chromosomes. Sequence alignment identified significant similarity between the dinoflagellate chromosomal histone-like proteins of Crypthecodinium cohnii (HCCs) and the bacterial DNA-binding and the eukaryotic histone H1 proteins. Phylogenetic analysis also supports the origin of the HCCs from histone-like proteins of bacteria.

* Corresponding author. Mailing address: Department of Biology, Hong Kong University of Science and Technology, Kowloon, Hong Kong, People's Republic of China. Phone: 852-2358-7343. Fax: 852-2358-1559. E-mail: Botin{at}ust.hk.

{dagger} Present address: Department of Biochemistry and the Biotechnology Research Institute, Hong Kong University of Science and Technology, Kowloon, Hong Kong, People's Republic of China.

Eukaryotic Cell, June 2003, p. 646-650, Vol. 2, No. 3
1535-9778/03/$08.00+0     DOI: 10.1128/EC.2.3.646-650.2003
Copyright © 2003, American Society for Microbiology. All Rights Reserved.



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