Ho-Young Kang

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BACKGROUND Pathogenicity islands (PAIs), distinct genomic segments of pathogens encoding virulence factors, represent a subgroup of genomic islands (GIs) that have been acquired by horizontal gene transfer event. Up to now, computational approaches for identifying PAIs have been focused on the detection of genomic regions which only differ from the rest of(More)
Harmful algal blooms, caused by rapid growth and accumulation of certain microalgae in the ocean, pose considerable impacts on marine environments, aquatic industries and even public health. Here, we present the 7.2-megabase genome of the marine bacterium Hahella chejuensis including genes responsible for the biosynthesis of a pigment which has the lytic(More)
BACKGROUND Array comparative genomic hybridization (CGH) is currently the most powerful method for detecting chromosomal alterations in pre and postnatal clinical cases. In this study, we developed a BAC based array CGH analysis platform for detecting whole genome DNA copy number changes including specific micro deletion and duplication chromosomal(More)
Leucine-responsive regulatory protein (Lrp) is known to be an indirect activator of type 1 fimbriae synthesis in Salmonella enterica serovar Typhimurium via direct regulation of FimZ, a direct positive regulator for type 1 fimbriae production. Using RT-PCR, we have shown previously that fimA transcription is dramatically impaired in both lrp-deletion (Δlrp)(More)
Array comparative genomic hybridization (CGH) is a powerful tool for detecting unbalanced chromosomal alterations. To validate the usefulness of array CGH in newborn screening, we examined 20,126 unselected infants. In addition, the number of newborns analyzed with array CGH is the largest one ever reported. A total of 20,126 unselected newborns were(More)
JLab has been at the forefront of a program to measure the nucleon spin-dependent structure functions over a wide kinematic range, and data of unprecedented quality has been extracted in all three experimental halls. Higher moments of these quantities have proven to be powerful tools to test QCD sum rules and will provide benchmark tests of Lattice QCD and(More)
Chromosomal abnormalities are common in embryos produced in vitro and cause implantation failure, miscarriage, and serious medical problems in infants. Because preimplantation genetic screening (PGS) is increasingly being used to detect aneuploidy in embryos with the purpose of improving implantation rates after IVF (in vitro fertilization), we aimed to(More)
Recent experimental data on nucleon spin structure at low to intermediate momentum transfers has provided valuable new information in the confinement regime, and shed light on the transition from confinement to asymptotic freedom. New insight has been gained by exploring moments of the spin structure functions and their corresponding sum rules. At low Q 2 ,(More)
We propose to study the proton elastic form factor ratio µG E /G M in the range of Q 2 = 0.01 – 0.7 GeV 2. Our goal is to vastly improve the knowledge of the ratio at low Q 2 , which, in combination with separate cross section data, will also allow significant improvements in knowledge of the individual form factors. In this low Q 2 range, substantial(More)