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The upstream open reading frame (uORF) in the 5' leader of the mammalian mRNA encoding S-adenosylmethionine decarboxylase (AdoMetDC) serves as a negative regulatory element by suppressing translation of the associated downstream cistron. Certain changes in the amino acid sequence of the hexapeptide (sequence MAGDIS) encoded by the uORF destroy suppressive(More)
in Metal-Organic Frameworks Krista S. Walton,† Andrew R. Millward,‡ David Dubbeldam,§ Houston Frost,§ John J. Low,¶ Omar M. Yaghi,# and Randall Q. Snurr*,§ Department of Chemical Engineering, Kansas State UniVersity, 1005 Durland Hall, Manhattan, Kansas 66506, Department of Chemistry, UniVersity of Michigan, Ann Arbor, Michigan 48109-1055, Department of(More)
A diverse collection of 14 metal-organic frameworks (MOFs) was screened for CO(2) capture from flue gas using a combined experimental and modeling approach. Adsorption measurements are reported for the screened MOFs at room temperature up to 1 bar. These data are used to validate a generalized strategy for molecular modeling of CO(2) and other small(More)
Hydrothermal stability is a pertinent issue to address for many industrial applications where percent levels of water can be present at temperatures ranging from subambient to several hundred degrees. Our objective is to understand relative stabilities of MOF materials through experimental testing combined with molecular modeling. This will enable the(More)
Conventional (e.g. MgH 2) and complex hydrides (e.g. ala-nates, borohydrides, and amides) are the two primary classes of solid-state hydrogen-storage materials. [1–3] Many of these " high-density " hydrides have the potential to store large amounts of hydrogen by weight (up to 18.5 wt % for LiBH 4) and/or volume (up to 112 g L À1 for MgH 2), values that are(More)
We have investigated the ternary mixture of complex hydrides with stoichiometry 2LiNH 2 + LiBH 4 + MgH 2 , and have identified a set of novel hydrogen storage reactions. One of these reactions involves the known reversible reaction Mg(NH 2) 2 + 2LiH ↔ Li 2 Mg(NH) 2 + 2H 2. Previous studies have shown that initiating this reaction from the binary mixture(More)
In this paper we present and discuss selected results of our recent studies of sorbate self-diffusion in microporous materials. The main focus is given to transport properties of carbon molecular sieve (CMS) membranes as well as of the intergrowth of FAU-type and EMT-type zeolites. CMS membranes show promise for applications in separations of mixtures of(More)
Molecular level understanding of acid-catalysed conversion of sugar molecules to platform chemicals such as hydroxy-methyl furfural (HMF), furfuryl alcohol (FAL), and levulinic acid (LA) is essential for efficient biomass conversion. In this paper, the high-level G4MP2 method along with the SMD solvation model is employed to understand detailed reaction(More)
The Sn silicate zeolite, Sn-beta, has been shown to be an efficient, selective heterogeneous catalyst for Baeyer-Villiger oxidations. Using primarily a multishell fit to extended X-ray absorption fine structure (EXAFS) data, we show that the Sn does not randomly insert into the beta-zeolite structure but rather occupies identical, specific, crystallographic(More)
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