Tit-Yee Wong

Learn More
Extracts from the unicellular green alga Selenastrum capricornutum exhibit high superoxide dismutase activity, but only traces of catalase activity. The excess hydrogen peroxide (HO) generated by the superoxide dismutase in S. capricornutum may be degraded by a unique peroxidase. This peroxidase has a high specificity for ascorbate as its electron donor.(More)
The key enzyme of the glycolytic pathway of Deinococcus radiodurans, fructose-1,6-bisphosphate aldolase, could be induced independently by glucose and Mn. The enzyme exhibited the characteristics of the metal-dependent Class II aldolases. Unlike most Class II aldolases, the deinococcal aldolase preferred Mn, not Zn, as a cofactor. The fbaA gene encoding the(More)
When the stop codons TGA, TAA, and TAG are found in the second and third reading frames of a protein-encoding gene, they are considered premature stop codons (PSC). Deinococcus radiodurans disproportionately favored TGA more than the other two triplets as a PSC. The TGA triplet was also found more often in noncoding regions and as a stop codon, though the(More)
The bacterial phosphoenolpyruvate (PEP)-dependent group translocation system (PTS) requires the presence of both membrane-bound and cytoplasmic components to phosphorylate and translocate sugar. Deinococcus radiodurans has a functional fruA gene coding for the membrane-bound components of the fructose-specific PTS. However, fruB gene coding for the(More)
The codeword design problem is an important problem in DNA computing and its applications. Several theoretical analyses as well as practical solutions for short oligonucleotides (up to 20-mers) have been generated recently. These solutions have, in turn, suggested new applications to DNA-based indexing and natural language processing, in addition to the(More)
The efficiencies of the stop codons TAA, TAG, and TGA in protein synthesis termination are not the same. These variations could allow many genes to be regulated. There are many similar nucleotide trimers found on the second and third reading-frames of a gene. They are called premature stop codons (PSC). Like stop codons, the PSC in bacterial genomes are(More)
The methods of denaturing gradient gel electrophoresis (DGGE) and DNA sequencing were used to analyze the ribotypes of microbial communities associated with corals. Both healthy and diseased coral of different species were collected at three locations off the southern coast of Taiwan. Ribotyping results suggested that the microbial communities were diverse.(More)
Bacteria associated with eight field-collected and five cultured soft corals of Briareum sp., Sinularia sp., Sarcophyton sp., Nephtheidae sp., and Lobophytum sp. were screened for their abilities in producing antimicrobial metabolites. Field-collected coral samples were collected from Nanwan Bay in southern Taiwan. Cultured corals were collected from the(More)
We have analyzed synonymous codon usage in the genome of A. tamarense CCMP 1598 for protein-coding sequences from 10865 expressed sequence tags (ESTs). We reconstructed a total of 4284 unigenes, including 74 ribosomal protein and 40 plastid-related genes, from ESTs using FrameDP, an open reading frame (ORF) prediction program. Correspondence analysis of A.(More)
Decreases in cell division at the stationary phase in bacterial cultures are often due to the depletion of nutrients and/or accumulation of toxic waste products. Yet, during the stationary phase, the highly radiation-resistant bacterium Deinococcus radiodurans undergoes new rounds of cell division when Mn(II) is added to the medium in a phenomenon known as(More)