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Korean Researchers Sequence Genome of Marine Bacterium H. chejuensis

NEW YORK, Jan. 16 (GenomeWeb News) - Researchers at Korea Research Institute of Bioscience and Biotechnology have sequenced the genome of the marine bacterium Hahella chejuensis.


According to the researchers, who published their findings in the Dec. 13, 2005, issue of Nucleic Acids Research, the bacterium comprises genes that help biosynthesize a pigment that has the lytic activity against the red-tide dinoflagellate Cochlodinium polykrikoides.


The scientists said they found that the 7.2-million-base-pair genome of H. chejuensis contains a multitude of genes of functional equivalence or of possible foreign origin. Functions encoded in the genomic islands include biosynthesis of exopolysaccharides, toxins, polyketides or non-ribosomal peptides, iron utilization, motility, type III protein secretion, and pigmentation.

The Scan

Pig Organ Transplants Considered

The Wall Street Journal reports that the US Food and Drug Administration may soon allow clinical trials that involve transplanting pig organs into humans.

'Poo-Bank' Proposal

Harvard Medical School researchers suggest people should bank stool samples when they are young to transplant when they later develop age-related diseases.

Spurred to Develop Again

New Scientist reports that researchers may have uncovered why about 60 percent of in vitro fertilization embryos stop developing.

Science Papers Examine Breast Milk Cell Populations, Cerebral Cortex Cellular Diversity, Micronesia Population History

In Science this week: unique cell populations found within breast milk, 100 transcriptionally distinct cell populations uncovered in the cerebral cortex, and more.