20 results match your criteria: "Korea Research Institute Bioscience and Biotechnology[Affiliation]"

Distribution extension of a vent scale worm (Polychaeta, Polynoidae) in the Indian Ocean.

Zookeys

October 2024

Division of Biomedical Research, Korea Research Institute Bioscience and Biotechnology, Daejeon 34141, Republic of Korea Division of Biomedical Research, Korea Research Institute Bioscience and Biotechnology Daejeon Republic of Korea.

Pettibone, 1985 is the most species-rich genus within the subfamily Lepidonotopodinae Pettibone, 1983, comprising 18 valid species from chemosynthesis-based ecosystems in the Pacific and Indian Oceans. Here, we report a new distributional record of Zhou, Wang, Zhang & Wang, 2018, at the hydrothermal vent sites on the northern Central Indian Ridge (nCIR). This record represents the northernmost occurrence of in the Indian Ocean.

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Identification of Reference Gene for Quantitative Gene Expression in Early-Term and Late-Term Cultured Canine Fibroblasts Derived from Ear Skin.

Animals (Basel)

September 2024

Department of Obstetrics, College of Veterinary Medicine, Chonnam National University, 300 Yonbongdong, Buk-gu, Gwangju 61186, Republic of Korea.

Fibroblasts are cells that reside within the fibrous or loose connective tissues of most mammalian organs. For research purposes, fibroblasts are often subjected to long-term culture under defined conditions, during which their properties can significantly change. It is essential to understand and document these changes to obtain reliable outcomes.

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Fibroblast growth factor 21 (FGF21) has pharmaceutical potential against obesity-related metabolic disorders, including non-alcoholic fatty liver disease. Since thermal stability is a desirable factor for therapeutic proteins, we investigated the thermal behavior of human FGF21. FGF21 remained soluble after heating; thus, we examined its temperature-induced structural changes using circular dichroism (CD).

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Amphibians and fish show considerable regeneration potential via dedifferentiation of somatic cells into blastemal cells. In terms of dedifferentiation, in vitro cellular reprogramming has been proposed to share common processes with in vivo tissue regeneration, although the details are elusive. Here, we identified the cytoskeletal linker protein desmoplakin (Dsp) as a common factor mediating both reprogramming and regeneration.

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Real-time quantitative reverse transcription polymerase chain reaction (qRT-PCR), a primary approach for evaluating gene expression, requires an appropriate normalization strategy to confirm relative gene expression levels by comparison, and rule out variations that might occur in analytical procedures. The best option is to use a reference gene whose expression level is stable across various experimental conditions to compare the mRNA levels of a target gene. However, there is limited information on how the reference gene is differentially expressed at different ages (growth) in small invertebrates with notable changes such as molting.

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The family Alvinocarididae is the monophyletic taxon which lives restrictively at chemosynthesis-based environments in the deep-sea. Here, for the first time, we report the complete mitogenome of the alvinocaridid vent shrimp from the North Fiji Basin. The mitogenome was 15,909 bp in length, with 65.

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The family Eolepadidae is the only stalked barnacle in hydrothermal vent regions. Here, we determined the mitogenome of the eolepadid . The mitogenome was 17,374 bp long, with 76.

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Scalpellids are one of the largest families of Scalpelliformes and reproduce either androdioeciously or dioeciously. Here, we characterized the first mitogenome of a scalpellid barnacle (), which was 15,593 bp in length with a 71.5% AT content.

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The family Catophragmidae is one of the lower balanomorphs from traditional and recent multiple mitochondrial and nuclear markers molecular analysis. Here, we characterized the first mitogenome of the catophragmid barnacle , which was 15,446 bp in length with a 68.3% AT content.

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Thoracican barnacles are common in hydrothermal vent fields. Here, we characterized the first mitogenome of a hydrothermal vent barnacle. The mitogenome of was 15,585 bp in length and had the typical pancrustacean gene arrangement.

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The hitherto suborder Verrucomorpha contains asymmetrical barnacles of two groups: the true Verrucomorpha ( + Verrucidae) and the Neoverrucidae. Here, we determined the mitochondrial genome (mitogenome) of , a true Verrucomorpha species. The mitogenome was 15,976 base pairs in length and had the typical pancrustacean gene arrangement.

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Article Synopsis
  • The study aimed to understand how the nucleophilic serine in specific β-lactamases, AmpC BER and CMY-10, undergoes adenylylation, a chemical modification that affects antibiotic resistance.
  • Researchers used techniques like X-ray crystallography and mass spectrometry to analyze the stability of the adenylylation process and tested the impact of a compound called acAMP on the effectiveness of the antibiotic ceftazidime.
  • Results showed that acAMP inhibits the activity of these β-lactamases by attaching to the nucleophilic serine through a two-step mechanism, leading to lower antibiotic resistance, and the findings could inform the development of new inhibitors against these enzymes.
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Development of a highly specific and sensitive cadmium and lead microbial biosensor using synthetic CadC-T7 genetic circuitry.

Biosens Bioelectron

May 2016

Infection and Immunity Research Center, Korea Research Institute Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea; Biosystems & Bioengineering Program, University of Science and Technology (UST), Daejeon, Republic of Korea. Electronic address:

Multiple copies of a cadC homolog encoding a heavy metal-responsive transcription factor were found in the genome of a bacterium isolated from ocean sediment, and the heavy metal responses of the encoded proteins were characterized using a fluorescence reporter assay. Each CadC regulator exhibited distinct specificity in response to heavy metal ions, indicating their potential use as modular heavy metal biosensors. Next, we constructed CadC-controlled T7 RNA transcription systems for intracellular signal amplification, i.

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Several anti-influenza drugs that reduce disease manifestation exist, and although these drugs provide clinical benefits in infected patients, their efficacy is limited by the emergence of drug-resistant influenza viruses. In the current study, we assessed the therapeutic strategy of enhancing the antiviral efficacy of an existing neuraminidase inhibitor, oseltamivir, by coadministering with the leaf extract from Hedera helix L, commonly known as ivy. Ivy extract has anti-inflammatory, antibacterial, antifungal, and antihelminthic properties.

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Complete mitochondrial genome of the blind vent crab Gandalfus puia (Crustacea: Bythograeidae) from the Tonga Arc.

Mitochondrial DNA A DNA Mapp Seq Anal

July 2016

b Deep-sea and Seabed Mineral Resources Research Center, Korea Institute of Ocean Science & Technology, Gyeonggi-do , Republic of Korea , and.

The brachyuran crab Gandalfus puia is a species endemic to the hydrothermal vent fields in the Tonga-Kermadec Arc. In order to understand G. puia at the genomic level, we sequenced its mitochondrial genome (mitogenome) and then compared to other bythograeids.

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Design, synthesis, and biological evaluation of a series of alkoxy-3-indolylacetic acids as peroxisome proliferator-activated receptor γ/δ agonists.

Bioorg Med Chem

July 2015

Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Chengpa-ro 47-gil 100, Yongsan-gu, Seoul 140-742, Republic of Korea. Electronic address:

A series of alkoxy-3-indolylacetic acid analogs has been discovered as peroxisome proliferator-activated receptor (PPAR) agonists. Structure-activity relationship study indicated that PPARα/γ/δ activities were dependent on the nature of the hydrophobic group, the attachment position of the alkoxy linker to the indole ring, and N-alkylation of indole nitrogen. Some compounds presented significant PPARγ/δ activity and molecular modeling suggested their putative binding modes in the ligand binding domain of PPARγ.

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TAGLN2 regulates T cell activation by stabilizing the actin cytoskeleton at the immunological synapse.

J Cell Biol

April 2015

School of Life Sciences, Immune Synapse Research Center and Cell Dynamics Research Center, Gwangju Institute of Science and Technology (GIST), Gwangju 500-712, South Korea

The formation of an immunological synapse (IS) requires tight regulation of actin dynamics by many actin polymerizing/depolymerizing proteins. However, the significance of actin stabilization at the IS remains largely unknown. In this paper, we identify a novel function of TAGLN2--an actin-binding protein predominantly expressed in T cells--in stabilizing cortical F-actin, thereby maintaining F-actin contents at the IS and acquiring LFA-1 (leukocyte function-associated antigen-1) activation after T cell receptor stimulation.

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Salicylic acid (SA) has a central role in activating plant resistance to pathogens. SA levels increase in plant tissue following pathogen infection and exogenous SA enhances resistance to a broad range of pathogens. To study the relevance of the SA signaling in the flg22 response, we investigated the responses of SA-related mutants to flg22, a 22-amino acid peptide of the flagellin bacterial protein.

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Background: Ginsenosides are the major components responsible for the biochemical and pharmacological actions of ginseng, and have been shown to have various biological activities. In this study, we investigated the antiviral activities of seven ginsenosides [protopanaxatriol (PT) type: Re, Rf, and Rg2; protopanaxadiol (PD) type: Rb1, Rb2, Rc, and Rd)] against coxsackievirus B3 (CVB3), enterovirus 71 (EV71), and human rhinovirus 3 (HRV3).

Methods: Assays of antiviral activity and cytotoxicity were evaluated by the sulforhodamine B method using the cytopathic effect (CPE) reduction assay.

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Biomolecule patterning by photolithographic methods has considerable advantages because a large number of different biomolecules can be assembled on a spatial area by a combinatorial method and complex biomolecule patterning can be created in situ in closed environments such as microfluidic channels. Here, a photobiotin was used as the photoactivatable reagent to create patterned arrays of biomolecules. The variability of photobiotin deposition on glass substrates modified with a variety of materials having carboxyl, lysine, aldehyde, amine groups, and BSA (bovine serum albumin) was characterized by subsequent derivatization with Cy3-labeled streptavidin.

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