Results 51 to 60 of about 1,372,167 (289)

A C35 Carotenoid Biosynthetic Pathway [PDF]

open access: yes, 2003
Upon coexpression with Erwinia geranylgeranyldiphosphate (GGDP) synthase in Escherichia coli, C30 carotenoid synthase CrtM from Staphylococcus aureus produces novel carotenoids with the asymmetrical C35 backbone.
Arnold, Frances H., Umeno, Daisuke
core  

Dynamical Networks in Function Dynamics [PDF]

open access: yes, 2002
As a first step toward realizing a dynamical system that evolves while spontaneously determining its own rule for time evolution, function dynamics (FD) is analyzed.
Albert   +7 more
core   +3 more sources

Novel Genetic Risk Factor Identified for L‐Asparaginase‐Induced Pancreatitis in Pediatric Patients With Cancer

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background L‐asparaginase is a critical component in treatment protocols for pediatric acute lymphoblastic leukemia. Acute pancreatitis reactions can necessitate delays and, in some cases, discontinuation of L‐asparaginase, which compromises outcomes.
Edward J. Raack   +39 more
wiley   +1 more source

Oncolytic Viruses: The Power of Directed Evolution

open access: yesAdvances in Virology, 2012
Attempts at developing oncolytic viruses have been primarily based on rational design. However, this approach has been met with limited success. An alternative approach employs directed evolution as a means of producing highly selective and potent ...
Maxine Bauzon, Terry W. Hermiston
doaj   +1 more source

Directed evolution strategies for improved enzymatic performance

open access: yesMicrobial Cell Factories, 2005
The engineering of enzymes with altered activity, specificity and stability, using directed evolution techniques that mimic evolution on a laboratory timescale, is now well established.
Dalby Paul A, Hibbert Edward G
doaj   +1 more source

Poincar\'{e} cycle of a multibox Ehrenfest urn model with directed transport

open access: yes, 2002
We propose a generalized Ehrenfest urn model of many urns arranged periodically along a circle. The evolution of the urn model system is governed by a directed stochastic operation.
A. Lipowski   +14 more
core   +1 more source

Upacicalcet: A Novel Intravenous Calcimimetic Agent for Patients Undergoing Hemodialysis With Secondary Hyperparathyroidism

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Secondary hyperparathyroidism (SHPT) is a common complication in patients receiving maintenance dialysis, driven by calcium and phosphate metabolism disturbances. Calcimimetics are central to the management of SHPT by enhancing calcium‐sensing receptor sensitivity and reducing parathyroid hormone secretion.
Fumihiko Koiwa   +3 more
wiley   +1 more source

Design and directed evolution of noncanonical β-stereoselective metalloglycosidases

open access: yesNature Communications, 2022
Metallohydrolases are ubiquitous enzymes. Here the authors show the design and biochemical characterisation of metalloglycosidase by constructing a hydrolytically active Zn-binding site within a barrel-shaped outer membrane protein OmpF.
Woo Jae Jeong, Woon Ju Song
doaj   +1 more source

Multiple scale theory of topology driven pattern on directed networks [PDF]

open access: yes, 2015
Dynamical processes on networks are currently being considered in different domains of cross-disciplinary interest. Reaction-diffusion systems hosted on directed graphs are in particular relevant for their widespread applications, from neuroscience, to ...
Contemori, Silvia   +3 more
core   +2 more sources

Directed Evolution of Microbial Communities

open access: yesAnnual Review of Biophysics, 2020
Directed evolution is a form of artificial selection that has been used for decades to find biomolecules and organisms with new or enhanced functional traits. Directed evolution can be conceptualized as a guided exploration of the genotype–phenotype map, where genetic variants with desirable phenotypes are first selected and then mutagenized to search ...
Rebolleda-Gomez, Maria   +5 more
openaire   +6 more sources

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