Results 21 to 30 of about 347,517 (297)

Strategies for studying permeation at voltage-gated ion channels [PDF]

, 1991
Voltage-dependent ion channels are presently thought to consist of several distinct functional regions: (a) activation gates, (b) inactivation gates, and permeation pathways.
Lester, Henry A.
core   +1 more source

The carboxyl terminus in apolipoprotein E2 and the seven amino acid repeat in apolipoprotein E-Leiden: role in receptor-binding activity

Journal of Lipid Research, 1998
Both apolipoprotein (apo) E2 and apoE-Leiden (tandem repeat of amino acids 121–127) are associated with type III hyperlipoproteinemia and bind defectively to low density lipoprotein receptors. Removing the carboxyl terminus of both variants (residues 192–
Li-Ming Dong, Thomas L. Innerarity, Kay S. Arnold, Yvonne M. Newhouse, Karl H. Weisgraber   +4 more
doaj   +1 more source

Genetic and biochemical analyses of chromosome and plasmid gene homologues encoding ICL and ArCP domains in Vibrioanguillarum strain 775 [PDF]

, 2011
Anguibactin, the siderophore produced by Vibrio anguillarum 775 is synthesized from 2,3-dihydroxybenzoic acid (DHBA), cysteine and hydroxyhistamine via a nonribosomal peptide synthetase (NRPS) mechanism.
AF Alice, AM Gehring, B Schwyn, C Notredame, CG Marshall, DH Figurski, EJ Drake, EL Arnow, F Bolivar, F Rusnak, H Naka, HW Boyer, J Frey, J Sambrook, JF Parsons, JF Staab, JH Crosa, JH Crosa, Jorge H. Crosa, JR Lai, JR Pollack, KA Datsenko, LA Actis, LA Actis, LE Quadri, M Balado, M Di Lorenzo, M Di Lorenzo, M Di Lorenzo, M Hahn, M Jalal, M Stork, MA Walter, Manuela Di Lorenzo, ME Tolmasky, ME Tolmasky, Michiel Stork, MK Wolf, PA Bates, Q Chen, RF Conchas, SF Altschul, TA Keating, TJ Welch   +43 more
core   +2 more sources

Site-directed mutation of a laccase from Thermus thermophilus: Effect on the activity profile [PDF]

Archives of Biological Sciences, 2012
A site-directed mutant R453T of a laccase from Thermus thermophilus HB27 (Tth-laccase) was constructed in order to investigate the effect on laccase catalytic properties. The mutated gene was cloned and overexpressed in Escherichia coli.
Liu Xin, Tian Meng, Liu Kewu
doaj   +1 more source

Structure and mechanism of acetolactate decarboxylase [PDF]

, 2013
Acetolactate decarboxylase catalyzes the conversion of both enantiomers of acetolactate to the (R)-enantiomer of acetoin, via a mechanism that has been shown to involve a prior rearrangement of the non-natural (R)-enantiomer substrate to the natural (S ...
Anand R., Chan K. K., Collaborative Computational Project Number 4, Crout D. H. G., Crout D. H. G., Crout D. H. G., Crout D. H. G., Crout D. H. G., Dean Rea, DeLano W. L., Dolin M. I., Drake A. F., Dulieu C., Fisher Z., Fusetti F., Gerlt J. A., Hall D. R., Hill R. K., Ho M.-C., Jones T. A., Kabsch W., Løken J. P, Martin Wills, Moen A. R., Murshudov G. N., Najmudin S., Okrasa K., Perrakis A., Read R. J., Robins D. J., Shabir Najmudin, Stritzke K., Størmer F. C., Victoria A. Marlow, Vilmos Fülöp, Vinogradov M., Yan Y.   +36 more
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In silico Analysis and Site-directed Mutagenesis of Promoters

Bio-Protocol, 2017
In normal as in cancerous cells, gene expression is tightly regulated by transcription factors, which are responsible for up- or down-regulation of thousands of targets involved in different cell processes. Transcription factors can directly regulate the
Salah Boudjadi, Jean-François Beaulieu
doaj   +1 more source

Improved immobilization of laccase on a glassy carbon electrode by oriented covalent attachment [PDF]

Archives of Biological Sciences, 2014
A laccase from Thermus thermophilus HB27 was reported to be potentially useful in the design of a temperature controlled biofuel cell. For enhancing its application in different thermal conditions, we engineered a laccase-oriented immobilized ...
Liu Xin, Liu Kewu
doaj   +1 more source

Directed enzyme evolution: climbing fitness peaks one amino acid at a time [PDF]

, 2009
Directed evolution can generate a remarkable range of new enzyme properties. Alternate substrate specificities and reaction selectivities are readily accessible in enzymes from families that are naturally functionally diverse.
Arnold, Frances H., Tracewell, Cara A.
core   +2 more sources

Interactions in vivo between the Vif protein of HIV-1 and the precursor (Pr55GAG) of the virion nucleocapsid proteins [PDF]

, 2009
The abnormality of viral core structure seen in vif-defective HIV-1 grown in PBMCs has suggested a role for Vif in viral morphogenesis. Using an in vivo mammalian two-hybrid assay, the interaction between Vif and the precursor (Pr55GAG) of the virion ...
A Harmache, A Mehle, AM Borman, AM Sheehy, AM Sheehy, B Liu, B Liu, B Mangeat, C Tian, DH Gabuzda, DH Gabuzda, Farhatullah Syed, H Ochman, H Zhang, HA Vasavada, I Sadowski, JH Simon, K Luo, K Stopak, L Baraz, L Fan, M Bouyac, M Bouyac, M Boyce, M Marin, MA Adekale, Malcolm A. McCrae, MS Oberste, N Madani, RA Fouchier, RC Desrosiers, RS Harris, S Cen, S Erickson-Viitanen, S Hoglund, SG Conticello, SK Arya, TH Lee, X Yu, Y Gluzman, Y Imai, Y Yu, YH Zheng   +42 more
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Current status and emerging frontiers in enzyme engineering: An industrial perspective

Heliyon
Protein engineering mechanisms can be an efficient approach to enhance the biochemical properties of various biocatalysts. Immobilization of biocatalysts and the introduction of new-to-nature chemical reactivities are also possible through the same ...
Obinna Giles Ndochinwa, Qing-Yan Wang, Oyetugo Chioma Amadi, Tochukwu Nwamaka Nwagu, Chukwudi Innocent Nnamchi, Emmanuel Sunday Okeke, Anene Nwabu Moneke   +6 more
doaj   +1 more source