Results 71 to 80 of about 1,215,941 (358)

Altering Enzymatic Activity: Recruitment of Carboxypeptidase Activity into an RTEM β-Lactamase/Penicillin-Binding Protein 5 Chimera [PDF]

, 1990
The D-Ala-D-Ala carboxypeptidases/transpeptidases (penicillin-binding proteins, PBPs) share considerable structural homology with class A β-lactamases (EC 3.5.2.6), although these β-lactamases have no observable D-Ala-D-Ala carboxypeptidase activity ...
Chang, Yie-Hwa, Labgold, Marc R., Richards, John H.   +2 more
core  

Determination of the Primary Molecular Target of 1,2,4-Triazole-Ciprofloxacin Hybrids [PDF]

, 2015
We have synthesized and examined the antibacterial activity, toxicity and affinity towards bacterial type II topoisomerases of a series of 1,2,4-triazole-ciprofloxacin hybrids.
Agata Paneth, Aleksandra Strzelczyk, Anna Malm, Barbara Kaproń, Barbara Rajtar, Dalhoff, Małgorzata Polz-Dacewicz, Oliphant, Paweł Stączek, Sharma, Tomasz Plech, Urszula Kosikowska, Łukasz Świątek   +12 more
core   +2 more sources

Crosstalk between the ribosome quality control‐associated E3 ubiquitin ligases LTN1 and RNF10

FEBS Letters, EarlyView.
Loss of the E3 ligase LTN1, the ubiquitin‐like modifier UFM1, or the deubiquitinating enzyme UFSP2 disrupts endoplasmic reticulum–ribosome quality control (ER‐RQC), a pathway that removes stalled ribosomes and faulty proteins. This disruption may trigger a compensatory response to ER‐RQC defects, including increased expression of the E3 ligase RNF10 ...
Yuxi Huang, Satoshi Hashimoto, Sota Ito, Chisato Kikuguchi, Miho Hoshi, Kiyoshi Yamaguchi, Yoichi Furukawa, Toru Suzuki, Toshifumi Inada   +8 more
wiley   +1 more source

Effect of arsenic-phosphorus interaction on arsenic-induced oxidative stress in chickpea plants [PDF]

, 2009
Arsenic-induced oxidative stress in chickpea was investigated under glasshouse conditions in response to application of arsenic and phosphorus. Three levels of arsenic (0, 30 and 60 mg kg−1) and four levels of P (50, 100, 200, and 400 mg kg−1) were ...
A Gunes, A Mishra, A Molassiotis, AA Carbonell-Barrachina, AA Meharg, AA Meharg, AA Meharg, AA Meharg, AA Meharg, Ali Inal, AO Fayiga, Aydin Gunes, C Tu, C Tu, CI Ullrich-Eberius, CN Giannopolitis, David J. Pilbeam, DM Hodges, E Smith, EI Ochiai, EV Chuparina, FJ Peryea, H Castillo-Michel, H Gong, I Cakmak, IJ Pickering, J Hartley-Whitaker, J Ivanova, JO Nriagu, M Jain, M Srivastava, MJ Anjos, MJ Hodson, N Stoeva, N Stoeva, P Prieto, PG Smith, PV Mylona, R Mittler, R Requejo, RK Sairam, S Tu, SP Mukherjee, WE Stephens, Y Gao, Y Nakano   +45 more
core   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source

Tamoxifen-like metallocifens target thioredoxin system determining mitochondrial impairment leading to apoptosis in Jurkat cells [PDF]

, 2017
Tamoxifen-like metallocifens (TLMs) of the group-8 metals (Fe, Ru, and Os) show strong anti-proliferative activity on cancer cell lines resistant to apoptosis, owing to their unique redox properties. In contrast, the thioredoxin system, which is involved
Alberto Bindoli, Alessandra Folda, Anne Vessières, Gérard Jaouen, Hui Zhi Shirley Lee, Maria Pia Rigobello, Michèle Salmain, Pascal Pigeon, Siden Top, Valeria Scalcon   +9 more
core   +3 more sources

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

FEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

Thermodynamic principle to enhance enzymatic activity using the substrate affinity

Nature Communications, 2023
Understanding how to tune enzymatic activity is important not only for biotechnological applications, but also to elucidate the basic principles guiding the design and optimization of biological systems in nature.
Hideshi Ooka, Yoko Chiba, Ryuhei Nakamura   +2 more
doaj   +1 more source

Trichoderma reesei derived cellulase activity in three N,N-dimethylethanolammonium akylcarboxylate ionic liquids [PDF]

, 2007
The activity and denaturation extent of cellulase from Trichoderma reesei (E.C. # 3.2.1.4) was investigated in three representative N,N-dimethylethanolammonium akylcarboxylate ionic liquids.
Giuseppe Mazza, Sierra Rayne
core   +1 more source

Lipopolysaccharide-specific acyloxyacyl hydrolase [PDF]

, 1991
" An acyloxyacyl hydrolase from the human promyelocyte cell line HL-60 has been found to specifically hydrolyze fatty acids from their ester linkages to hydroxy groups of 3-hydroxyfatty acids, the latter being being bound in turn to lipopolysaccharide ...
Hall, Catherine L., Munford, Robert S.
core   +1 more source