Results 71 to 80 of about 763,156 (326)

Mechanistic and structural study of human aspartate/asparagine-beta-hydroxylase [PDF]

open access: yes
The 2-oxoglutarate (2OG) dependent oxygenases are a superfamily of enzymes that utilise an Fe(II) cofactor and 2OG co-substrate for the catalysis of oxidative reactions.
Brasnett, Amelia
core   +2 more sources

Structure and function of the bacterial heterodimeric ABC transporter CydDC: stimulation of ATPase activity by thiol and heme compounds. [PDF]

open access: yes, 2014
In Escherichia coli, the biogenesis of both cytochrome bd-type quinol oxidases and periplasmic cytochromes requires the ATP-binding cassette-type cysteine/GSH transporter, CydDC.
Baldwin, SA   +9 more
core   +3 more sources

Ulyanov inequalities for the mixed moduli of smoothness in mixed metrics [PDF]

open access: yesarXiv, 2023
In this paper we prove Ulyanov-type inequalities between mixed moduli of smoothness of positive orders in different metrics.
arxiv  

Reaction of O2 with a di-iron protein generates a mixed valent Fe2+/Fe3+ center and peroxide [PDF]

open access: yes, 2019
The gene encoding the cyanobacterial ferritin SynFtn is up-regulated in response to copper stress. Here, we show that, while SynFtn does not interact directly with copper, it is highly unusual in several ways.
Bradley, Justin M.   +9 more
core   +2 more sources

Model selection criteria for nonlinear mixed effects modeling [PDF]

open access: yesarXiv, 2014
We consider constructing model selection criteria for evaluating nonlinear mixed effects models via basis expansions. Mean functions and random functions in the mixed effects model are expressed by basis expansions, then they are estimated by the maximum likelihood method.
arxiv  

Diversity and catalytic potential of PAH-specific ring-hydroxylating dioxygenases from a hydrocarbon-contaminated soil. [PDF]

open access: yes, 2012
International audienceRing-hydroxylating dioxygenases (RHDs) catalyze the initial oxidation step of a range of aromatic hydrocarbons including polycyclic aromatic hydrocarbons (PAHs).
Jakoncic, Jean   +4 more
core   +3 more sources

Non-degenerate mixed functions [PDF]

open access: yesarXiv, 2009
Mixed functions are analytic functions in variables $z_1,..., z_n$ and their conjugates $\bar z_1,..., \bar z_n$. We introduce the notion of Newton non-degeneracy for mixed functions and develop a basic tool for the study of mixed hypersurface singularities.
arxiv  

Kinetics of toluene degradation by toluene-oxidizing bacteria as a function of oxygen concentration, and the effect of nitrate [PDF]

open access: yes, 1997
The kinetics of toluene degradation as a function of oxygen concentration were compared for six strains of toluene-oxidizing bacteria using initial rate assays. The effect of nitrate was also examined.
Anid   +34 more
core   +1 more source

Mixing and Matching of Hybrid Megasynthases is a Hub for the Evolution of Metabolic Diversity in Cyanobacteria

open access: yesAngewandte Chemie International Edition, EarlyView.
Natural combinatorics: Evolutionary mixing and matching of three cyanobacterial biosynthetic gene clusters resulted in the emergence of minutumamides, a novel family of peptide‐polyketide hybrids. Retro‐evolutionary analysis led to the discovery of nostopeptolide KVJ3, an evolutionary ancestor that links nostopeptolide and minutumamide biosynthesis and
Keishi Ishida   +6 more
wiley   +1 more source

Weak mixing properties of vector sequences [PDF]

open access: yesarXiv, 2005
Notions of weak and uniformly weak mixing (to zero) are defined for bounded sequences in arbitrary Banach spaces. Uniformly weak mixing for vector sequences is characterized by mean ergodic convergence properties. For bounded sequences, which satisfy a certain domination condition, it is shown that weak mixing to zero is equivalent with uniformly weak ...
arxiv  

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