Abstract:
:Study of mutations that improve enzyme properties reveals that in many, but not all, cases closer mutations are more effective than distant ones. For enantioselectivity, substrate selectivity and new catalytic activity (catalytic promiscuity) closer mutations improved enzymes more effectively than distant ones. However, both close and distant mutations can improve activity, thermal stability and also probably stability toward organic solvents. Typical random mutagenesis methods, such as error-prone PCR, create greater numbers of distant mutations than close mutations because enzymes contain more amino acids distant from the active site than close to the active site. This suggests that instead of mutating the entire enzyme, focusing mutations near the substrate-binding site might dramatically increase the success rate in many directed evolution experiments.
journal_name
Trends Biotechnoljournal_title
Trends in biotechnologyauthors
Morley KL,Kazlauskas RJdoi
10.1016/j.tibtech.2005.03.005subject
Has Abstractpub_date
2005-05-01 00:00:00pages
231-7issue
5eissn
0167-7799issn
1879-3096pii
S0167-7799(05)00077-6journal_volume
23pub_type
杂志文章,评审abstract::It is possible to improve the sensitivity of immunoassays by several orders of magnitude by exploiting nanoenvironmental effects. This approach can detect trace amounts of compounds and will better illuminate the presence of signal substances in biological systems. Here we describe a method for ultrasensitive immunoas...
journal_title:Trends in biotechnology
pub_type: 杂志文章
doi:10.1016/j.tibtech.2017.06.001
更新日期:2017-11-01 00:00:00
abstract::Bacterial genomics has provided a plethora of potential targets for antibacterial drug discovery, however, success in the hunt for new antibiotics will hinge on selecting targets with the highest potential. A recent paper by Liu and coworkers describes a new approach to target selection that uncovers strategies used b...
journal_title:Trends in biotechnology
pub_type: 杂志文章
doi:10.1016/j.tibtech.2004.07.004
更新日期:2004-09-01 00:00:00
abstract::The use of implantable immunoisolation devices, in which the tissue is protected from immune rejection by enclosure within a semipermeable membrane or encapsulant, is one approach in the development of cell therapies. However, further research is required in the areas of: tissue supply from primary or cell-culture sou...
journal_title:Trends in biotechnology
pub_type: 杂志文章,评审
doi:10.1016/0167-7799(96)10021-4
更新日期:1996-05-01 00:00:00
abstract::Cytokine research has yielded a range of products which have now reached the stage of clinical trials and a plethora of novel therapeutics may be expected. Recently, cytokine receptors have also become an area of intensive research. Preliminary results indicate that recombinant soluble receptors can interfere with the...
journal_title:Trends in biotechnology
pub_type: 杂志文章,评审
doi:10.1016/0167-7799(90)90213-h
更新日期:1990-11-01 00:00:00
abstract::Bacteriophages encode many distinct proteins for the successful infection of a bacterial host. Each protein plays a specific role in the phage replication cycle, from host recognition, through takeover of the host machinery, and up to cell lysis for progeny release. As the roles of these proteins are being revealed, m...
journal_title:Trends in biotechnology
pub_type: 杂志文章,评审
doi:10.1016/j.tibtech.2018.04.006
更新日期:2018-09-01 00:00:00
abstract::The use of antibodies or antibody fragments for targeting tumors (either for tumor imaging or as carriers for drugs or toxins), has encountered problems of clearance, and non-specific or inefficient binding in clinical trials. A novel approach, linking two antibody variable fragments (Fvs), with a short peptide to gen...
journal_title:Trends in biotechnology
pub_type: 杂志文章,评审
doi:10.1016/0167-7799(91)90044-i
更新日期:1991-04-01 00:00:00
abstract::A major impact of genome projects on human health will be their contribution to the understanding of protein function. Proteins are the engines of biological systems, nearly all pharmaceuticals act on proteins and increasingly proteins themselves are used therapeutically. As biology enters the post-genomic era, resear...
journal_title:Trends in biotechnology
pub_type: 杂志文章,评审
doi:10.1016/S0167-7799(03)00189-6
更新日期:2003-09-01 00:00:00
abstract::Along with the development of metabolic engineering and synthetic biology tools, various microbes are being used to produce aromatic chemicals. In microbes, aromatics are mainly produced via a common important precursor, chorismate, in the shikimate pathway. Natural or non-natural aromatics have been produced by engin...
journal_title:Trends in biotechnology
pub_type: 杂志文章,评审
doi:10.1016/j.tibtech.2017.05.006
更新日期:2017-08-01 00:00:00
abstract::Plant-based environmental remediation, or phytoremediation, has been widely pursued in recent years as a favorable clean-up technology and is an area of intensive scientific investigation. For the vast majority of field applications, vegetative 'phyto-crops' are selected specifically for their capacity for site decont...
journal_title:Trends in biotechnology
pub_type: 杂志文章,评审
doi:10.1016/j.tibtech.2004.08.003
更新日期:2004-10-01 00:00:00
abstract::The global movement of people and goods has increased the risk of biosecurity threats and their potential to incur large economic, social, and environmental costs. Conventional manual biosecurity surveillance methods are limited by their scalability in space and time. This article focuses on autonomous surveillance sy...
journal_title:Trends in biotechnology
pub_type: 杂志文章,评审
doi:10.1016/j.tibtech.2015.01.003
更新日期:2015-04-01 00:00:00
abstract::The diffusion of genetically modified (GM) animals has generated a demand for accurate and unique identification to assure compliance with relevant national and international legislation. Individual identification of GM animals is essential to improve safety and traceability, as well as to fulfill the present and futu...
journal_title:Trends in biotechnology
pub_type: 杂志文章
doi:10.1016/j.tibtech.2013.02.001
更新日期:2013-05-01 00:00:00
abstract::Bacteriorhodopsin (BR) is the photoactive proton pump found in the purple membrane of the salt marsh archaeon Halobacterium salinarum. Evolution has optimized this protein for high photochemical efficiency, thermal stability and cyclicity, as the organism must be able to function in a hot, stagnant and resource-limite...
journal_title:Trends in biotechnology
pub_type: 杂志文章,评审
doi:10.1016/s0167-7799(02)02023-1
更新日期:2002-09-01 00:00:00
abstract::Vibrational spectroscopy using both infrared and Raman spectroscopies has been used in recent years with the aim to aid clinicians in disease diagnosis. More recently, these techniques have been applied to study stem cell differentiation and to determine stem cell presence in tissues. These studies have demonstrated t...
journal_title:Trends in biotechnology
pub_type: 杂志文章,评审
doi:10.1016/j.tibtech.2014.03.002
更新日期:2014-05-01 00:00:00
abstract::Challenges in demonstrating interchangeability and safety, as well as the ongoing evolution of regulations governing biosimilars, have meant that the development of the biosimilars industry has not been, and will not be, a carbon copy of the generics industry. Complexity in the development process reduces the cost adv...
journal_title:Trends in biotechnology
pub_type: 杂志文章,评审
doi:10.1016/j.tibtech.2015.10.009
更新日期:2016-01-01 00:00:00
abstract::The concept of ecological 'traps' is based in theory from ecology and conservation biology that has now found application to infectious diseases with a study from Paul Turner's group. This study is important because it offers a mathematical model of ecological traps, applies this model to viruses, and tests the model ...
journal_title:Trends in biotechnology
pub_type: 杂志文章
doi:10.1016/j.tibtech.2007.08.013
更新日期:2007-12-01 00:00:00
abstract::Success in synthetic biology and metabolic engineering is quickly becoming 'test' limited within the design-build-test cycle. Commonly used methods for high-throughput screening, including fluorescence-activated cell sorting (FACS) and microtiter plates, have intracellular product and throughput limitations. A growing...
journal_title:Trends in biotechnology
pub_type: 杂志文章,评审
doi:10.1016/j.tibtech.2019.11.002
更新日期:2020-07-01 00:00:00
abstract::Although many microorganisms have been used for the bioindustrial generation of valuable metabolites, the productive potential of cyanobacterial species has remained largely unexplored. Cyanobacteria possess several advantages as organisms for bioindustrial processes, including simple input requirements, tolerance of ...
journal_title:Trends in biotechnology
pub_type: 杂志文章,评审
doi:10.1016/j.tibtech.2010.12.003
更新日期:2011-02-01 00:00:00
abstract::Cancer is one of the most prevalent diseases worldwide, which explains why biological therapies for cancer are forecast to make up 35% of total recombinant pharmaceuticals by 2010. Because of the high demand for cancer drugs, the need to lower production costs and the constraints of present production technologies for...
journal_title:Trends in biotechnology
pub_type: 杂志文章,评审
doi:10.1016/j.tibtech.2007.09.001
更新日期:2007-10-01 00:00:00
abstract::Spheroids provide a 3D environment with intensive cell-cell contacts. As a result of their excellent regenerative properties and rapid progress in their high-throughput production, spheroids are increasingly suggested as building blocks for tissue engineering. In this review, we focus on innovative biotechnological ap...
journal_title:Trends in biotechnology
pub_type: 杂志文章,评审
doi:10.1016/j.tibtech.2016.08.004
更新日期:2017-02-01 00:00:00
abstract::Many bacteria and fungi produce natural products that are toxic to other microorganisms and have a variety of physiological effects in animals. Recent studies have revealed that, in several cases, the targets of these agents are components of conserved signal-transduction cascades. This article looks at the mechanisms...
journal_title:Trends in biotechnology
pub_type: 杂志文章,评审
doi:10.1016/s0167-7799(98)01239-6
更新日期:1998-10-01 00:00:00
abstract::Proteins found in nature have traditionally been the most frequently used biocatalysts to produce numerous natural products ranging from commodity chemicals to pharmaceuticals. Protein engineering has emerged as a powerful biotechnological toolbox in the development of metabolic engineering, particularly for the biosy...
journal_title:Trends in biotechnology
pub_type: 杂志文章,评审
doi:10.1016/j.tibtech.2019.12.008
更新日期:2020-07-01 00:00:00
abstract::High-throughput genetic screens interfering with gene expression are invaluable tools to identify gene function and phenotype-to-genotype interactions. Implementing such screens in the laboratory is challenging, and the choice between currently available technologies based on RNAi and CRISPR/Cas9 (CRISPR-associated pr...
journal_title:Trends in biotechnology
pub_type: 杂志文章,评审
doi:10.1016/j.tibtech.2018.08.002
更新日期:2019-01-01 00:00:00
abstract::N-linked glycoproteins include such biologically important molecules as cell-surface receptors, cell-adhesion molecules, immunoglobulins and other serum proteins, and tumor antigens. Investigating the role of carbohydrate in glycoprotein function has included the use of glycosylation inhibitors or site-directed mutage...
journal_title:Trends in biotechnology
pub_type: 杂志文章,评审
doi:10.1016/0167-7799(91)90117-z
更新日期:1991-10-01 00:00:00
abstract::Vascularisation is key to developing large transplantable tissue constructs capable of providing therapeutic benefits. The vascularised tissue engineering chamber originates from surgical concepts in tissue prefabrication and microsurgery. It serves as an in vivo bioreactor in the form of a closed, protected space sur...
journal_title:Trends in biotechnology
pub_type: 杂志文章,评审
doi:10.1016/j.tibtech.2018.05.009
更新日期:2018-10-01 00:00:00
abstract::Neurodegenerative diseases are of major socioeconomic importance and represent an enormous challenge for the scientific and medical communities. Advances in molecular genetics during the past decade have begun to provide approaches for the establishment of animal models for these disorders using transgenic technology....
journal_title:Trends in biotechnology
pub_type: 杂志文章,评审
doi:10.1016/S0167-7799(97)01066-4
更新日期:1997-08-01 00:00:00
abstract::The lantibiotics are a unique class of bacterium-derived peptide antibiotics, all of which contain the rare amino acid lanthionine, as well as a number of other nonprotein amino acids. Unlike most other peptide antibiotics, lantibiotics are produced on the ribosome as a prepeptide, and a series of post-translational m...
journal_title:Trends in biotechnology
pub_type: 杂志文章,评审
doi:10.1016/S0167-7799(00)88962-3
更新日期:1995-07-01 00:00:00
abstract::Microbial consortia have been used in biotechnology processes, including fermentation, waste treatment, and agriculture, for millennia. Today, synthetic biologists are increasingly engineering microbial consortia for diverse applications, including the bioproduction of medicines, biofuels, and biomaterials from inexpe...
journal_title:Trends in biotechnology
pub_type: 杂志文章,评审
doi:10.1016/j.tibtech.2018.11.002
更新日期:2019-02-01 00:00:00
abstract::The best long-term prospects for the reduction in the number of deaths due to cancer lie with screening and prevention rather than with therapy of the advanced disease. Screening efficiency will be improved by the identification of individuals at inherited high risk of cancer. Understanding the mechanism of predisposi...
journal_title:Trends in biotechnology
pub_type: 杂志文章,评审
doi:10.1016/0167-7799(90)90147-p
更新日期:1990-04-01 00:00:00
abstract::Brain-machine interfaces (BMIs) enable humans to interact with devices by modulating their brain signals. Despite impressive technological advancements, several obstacles remain. The most commonly used BMI control signals are derived from the brain areas involved in primary sensory- or motor-related processing. Howeve...
journal_title:Trends in biotechnology
pub_type: 杂志文章,评审
doi:10.1016/j.tibtech.2017.03.008
更新日期:2017-07-01 00:00:00
abstract::The endothelium lining blood vessels expresses molecules that are restricted in their expression to a particular tissue or organ. These molecules are attractive targets for therapy and diagnosis because they allow agents to be delivered specifically to the blood vessels supplying the desired tissue. However, it is dif...
journal_title:Trends in biotechnology
pub_type: 杂志文章
doi:10.1016/S0167-7799(03)00079-9
更新日期:2003-05-01 00:00:00