Results 101 to 110 of about 347,517 (297)

Mutagenesis of Trichoderma reesei endoglucanase I: impact of expression host on activity and stability at elevated temperatures. [PDF]

, 2015
BackgroundTrichoderma reesei is a key cellulase source for economically saccharifying cellulosic biomass for the production of biofuels. Lignocellulose hydrolysis at temperatures above the optimum temperature of T. reesei cellulases (~50°C) could provide
Atreya, Meera E, Blanch, Harvey W, Chokhawala, Harshal A, Clark, Douglas S, Dana, Craig M, Kim, Tae-Wan, Roche, Christine M, Vegesna, Neeraja   +7 more
core   +3 more sources

Time‐Resolved SAXS Reveals Distinct Millisecond Metal‐Induced Conformational Dynamics of Monomeric α‐Synuclein

Advanced Science, EarlyView.
Time‐resolved SAXS reveals how physiologically relevant metal ions shape the earliest conformational responses of monomeric α‐synuclein. Fe3+ induces rapid compaction, Cu2+ generates heterogeneous and partially folded ensembles, while Mn2+ and Zn2+ cause only modest changes.
Rebecca Sternke‐Hoffmann, Miriam Dos Santos Pinto, Xue Wang, Jinghui Luo   +3 more
wiley   +1 more source

Antimicrobial characterization of site-directed mutagenesis of porcine beta defensin 2.

PLoS ONE, 2015
Porcine β defensin 2 (pBD2) is a small, cationic and amphiphilic antimicrobial peptide. It has broad antimicrobial activities against bacteria and plays an important role in host defense.
Xian-xian Huang, Chun-yu Gao, Qing-jun Zhao, Chun-li Li   +3 more
doaj   +1 more source

Construction of a "mutagenesis cartridge" for poliovirus genome-linked viral protein: Isolation and characterization of viable and nonviable mutants [PDF]

, 1988
By following a strategy of genetic analysis of poliovirus, we have constructed a synthetic "mutagenesis cartridge" spanning the genome-linked viral protein coding region and flanking cleavage sites in an infectious cDNA clone of the type 1 (Mahoney ...
Dunn, John J., Kuhn, Richard J., Semler, Bert L., Tada, Hiroomi, Wimmer, Eckard, Ypma-Wong, Mary Frances   +5 more
core  

Engineering of microheterogeneity-resistant p-hydroxybenzoate hydroxylase from Pseudomonas fluorescens [PDF]

, 1914
By site-directed mutagenesis, Cys-116 was converted to Ser-116 in p-hydroxybenzoate hydroxylase (EC 1.14.13.2) from Pseudomonas fluorescens. In contrast to wild-type enzyme, the C116S mutant is no longer susceptible to oxidation by hydrogen peroxide and ...
Klaus Eschrich, Willem J.H. van Berkel, Adrie H. Westphal, Arie de Kok, Andrea Mattevi, Galina Obmolova, Kor H. Kalk, Wim G.J. Hol, Sadana, Van, Van, Müller, Husain, Schreuder, Van, Entsch, Van, Entsch, Westphal, Kunkel, Yanish-Perron, Van, Van, Vervoort   +23 more
core   +1 more source

Divergent Regulatory Effects of Jasmonic Acid on Tomato Lycopene Biosynthesis Under Light and Dark Conditions

Advanced Science, EarlyView.
This study reveals the mechanism by which jasmonic acid (JA) regulates lycopene synthesis under light and dark conditions. In light, JA activates SlMYC2, which suppresses SlPIF1a and promotes SlPSY1 expression. In darkness, JA induces the acetyltransferase SlNATA1, which acetylates the dark‐accumulated SlPIF1a, thereby repressing SlPSY1 expression ...
Jiayi Xu, Lingfeng He, Jialong Zhang, Hao Cui, Hongxin Li, Haijun Zhang, Jiaojiao Zhang, Lun Liu, Kunpeng Xu, Yang‐Dong Guo, Na Zhang   +10 more
wiley   +1 more source

Scarless and site-directed mutagenesis in Salmonella enteritidis chromosome

BMC Biotechnology, 2007
Background A variety of techniques have been described which introduce scarless, site-specific chromosomal mutations. These techniques can be applied to make point mutations or gene deletions as well as insert heterologous DNA into bacterial vectors for ...
Berghman Luc R, Hargis Billy M, Cole Kim, Jiang Tieshan, Layton Sherryll L, Cox Mandy M, Bottje Walter G, Kwon Young   +7 more
doaj   +1 more source

Machine learning-guided directed evolution for protein engineering [PDF]

, 2019
Machine learning (ML)-guided directed evolution is a new paradigm for biological design that enables optimization of complex functions. ML methods use data to predict how sequence maps to function without requiring a detailed model of the underlying ...
Arnold, Frances H., Wu, Zachary, Yang, Kevin K.   +2 more
core   +1 more source

Endocytic Control of Cell‐Autonomous and Non‐Cell‐Autonomous Functions of p53

Advanced Science, EarlyView.
NUMB Ex3‐containing isoforms localize to the plasma membrane, where they recruit p53 through SNX9 and direct it to multivesicular bodies and exosomes. Exported p53 is taken up by neighboring cells and activates nuclear programs, revealing an intercellular, exosome‐based pathway that might help establish a tumor‐suppressive microenvironment.
Roberta Cacciatore, Andrea Basile, Stefano Freddi, Irene Schiano Lomoriello, Carlo Ribelle Zucca, Giuseppe Ciossani, Luigi Scietti, Alessandro Cuomo, Simona Ronzoni, Simone Pelicci, Mario Faretta, Elena Zaccheroni, Giuliana Pelicci, Vittoria Matafora, Angela Bachi, Rosalind Helen Gunby, Salvatore Pece, Sara Sigismund, Letizia Lanzetti, Ivan Nicola Colaluca, Pier Paolo Di Fiore   +20 more
wiley   +1 more source

KDM4A Erases the H3R17me2a Mark, Facilitating Chromosome Condensation

Advanced Science, EarlyView.
This study reveals a reversible histone modification switch governing chromosome condensation during mitosis. PKCα‐activated KDM4A removes H3R17me2a, permitting Suv39h1‐driven H3K9me3 deposition. This epigenetic transition recruits the chromosomal passenger complex and triggers Aurora B‐dependent H3S10 phosphorylation, coordinating chromatin remodeling
Yena Cho, Jee Won Hwang, Gyu Hwan Hyun, Sangkyu Lee, Dae‐Geun Song, Su‐Nam Kim, Yong Kee Kim   +6 more
wiley   +1 more source