搜索结果: 1-15 共查到“知识库 生物化学 DNA”相关记录166条 . 查询时间(0.203 秒)
生殖健康研究所肖先金课题组DNA纳米技术领域获进展（图）
DNA纳米技术 生殖健康研究所 光热治疗 生物成像
2021/9/26
国际著名期刊《ACS Nano》（IF 15.881）近日在线发表了生殖健康研究所肖先金教授题为Multifunctional Clip strand for regulation of DNA strand dis-placement and construction of complex DNA nanodevices的研究论文。（论文链接：https://pubs.acs.org/doi/1...
与RNA和蛋白质一样，DNA具备酶的活性，尽管这一特性目前只在体外得到确认。在DNA的众多酶活特性中，可水解切割DNA的DNA（DNA水解自切酶）因其具备作为新型基因编辑工具的潜能受到更多关注。现有的DNA水解自切酶都是从人工合成的包含随机序列（N）的单链（ss）DNA文库中筛选得到的；大约十年前，耶鲁大学的Breaker团队建立了一套强大的体外筛选策略，借助环化酶CircLigase催化线性DN...
Impact of polyunsaturated and saturated fat overfeeding on the DNA-methylation pattern in human adipose tissue: a randomized controlled trial
DNA methylation epigenetics EWAS Illumina 450k methylation array LIPOGAIN cohort obesity overfeeding polyunsaturated fat prediction saturated fat
2018/11/13
Background: Dietary fat composition can affect ectopic lipid accumulation and, thereby, insulin resistance. Diets that are high in saturated fatty acids (SFAs) or polyunsaturated fatty acids (PUFAs) h...
DNA-Based Patterning of Tethered Membrane Patches
DNA Lipids Lipid Bilayers Molecular Structure Particle Size Surface Properties
2016/5/25
Solid-supported lipid bilayers are useful model systems for mimicking cellular membranes; however, the interaction of the bilayer with the surface can disrupt the function of integral membrane protein...
Individual Vesicle Fusion Events Mediated by Lipid-anchored DNA
Cholesterol DNA Lipid Bilayers Phosphatidylcholines Phosphatidylethanolamines Membrane Fusion Unilamellar Liposomes
2016/5/25
Membrane fusion consists of a complex rearrangement of lipids and proteins that results in the merger of two lipid bilayers. We have developed a model system that employs synthetic DNA-lipid conjugate...
Formation and Analysis of Topographical Domains Between Lipid Membranes Tethered by DNA Hybrids of Different Lengths
Cell Membrane DNA Membrane Lipids Lipid Bilayers 1,2-Dipalmitoylphosphatidylcholine Microscopy, Fluorescence Base Sequence Molecular Sequence Data Models,Chemical Unilamellar Liposomes
2016/5/25
We recently described a strategy to prepare DNA-tethered lipid membranes either to fixed DNA on a surface or to DNA displayed on a supported bilayer [Boxer et al., J. Struct. Biol., 2009, 168, 190; Bo...
Stability of DNA-Tethered Lipid Membranes with Mobile Tethers
Metallic glasses Rapid-solidification Microstructure Mechanical properties
2016/5/25
We recently introduced two approaches for tethering planar lipid bilayers as membrane patches to either a supported lipid bilayer or DNA-functionalized surface using DNA hybridization (Chung, M.; Lowe...
Covalent Attachment of Lipid Vesicles to a Fluid-Supported Bilayer Allows Observation of DNA-Mediated Vesicle Interactions
Caspian and Black Sea waters reverse-osmotic desalination Na-zeolite softening of the permeate
2016/5/25
Specific membrane interactions such as lipid vesicle docking and fusion can be mediated by synthetic DNA-lipid conjugates as a model for the protein-driven processes that are ubiquitous in biological ...
DNA-tethered Membranes Formed by Giant Vesicle Rupture
Tethered lipid membrane Surface immobilized DNA Giant unilamellar vesicles
2016/5/25
We have developed a strategy for preparing tethered lipid bilayer membrane patches on solid surfaces by DNA hybridization. In this way, the tethered membrane patch is held at a controllable distance f...
Effects of Linker Sequences on Vesicle Fusion Mediated by Lipid-Anchored DNA Oligonucleotides
DNA machine synthetic biology
2016/5/25
Synthetic lipid-oligonucleotide conjugates inserted into lipid vesicles mediate fusion when one population of vesicles displays the 5'-coupled conjugate and the other the 3'-coupled conjugate, so that...
Lipid-anchored DNA Mediates Vesicle Fusion as Observed by Lipid and Content Mixing
DNA Vesicles Lipids Fuses
2016/5/25
A general method for synthesizing 5(')- and 3(')-coupled DNA-lipid conjugates has been developed and employed in DNA-mediated vesicle fusion. Vesicles presenting complementary DNA fuse, resulting in b...
Kinetics of DNA-mediated Docking Reactions Between Vesicles Tethered To Supported Lipid Bilayers
DNA electron transfer oxidative stress redox regulation
2016/5/25
Membrane-membrane recognition and binding are crucial in many biological processes. We report an approach to studying the dynamics of such reactions by using DNA-tethered vesicles as a general scaffol...
Spatially localized generation of nucleotide sequence-specific DNA damage
sperm chemotaxis fertilization TPX-1 AEG CRISP
2016/5/23
Psoralens linked to triplex-forming oligonucleotides (psoTFOs) have been used in conjunction with laser-induced two-photon excitation (TPE) to damage a specific DNA target sequence. To demonstrate tha...
Synthesis of a Thymidine Phosphoramidite Labelled with 13C at C6: Relaxation Studies of the Loop Region in a 13C Labelled DNA Hairpin
Thymidine Phosphoramidite Labelled 13C C6 Relaxation Studies 13C Labelled DNA Hairpin
2016/5/20
A thymidine phosphoramidite labelled at C6 with 13C has been synthesized, and incorporated into a synthetic oligonucleotide, d(CGCGT*T*GT*T*CGCG), which adopts a hairpin conformation. NMR relaxation m...
Analysis of the Spatiotemporal Localization of Mitochondrial DNA Polymerases of Trypanosoma brucei
cell cycle DNA polymerase kinetoplast DNA microscopy mitochondrion Trypanosomes
2015/1/28
The mitochondrion contains its own genome. Replication of the mitochondrial DNA (mtDNA) is an essential process that, in most organisms, occurs through the cell cycle with no known mechanism to ensure...