Results 101 to 110 of about 86,461 (284)

Computational Study on the Reaction Mechanism of 5‐Enolpyruvylshikimate‐3‐phosphate Synthase from Nicotiana Tabacum

ChemistryOpen, EarlyView.
The reaction mechanism of 5‐enolpyruvylshikimate‐3‐phosphate synthase from Nicotiana tabacum (NtEPSPS) is elucidated using quantum chemical calculations. The proposed mechanism involves four sequential steps: carbocation intermediate formation, tetrahedral intermediate formation, rate‐limiting C−O bond cleavage, and C=C bond re‐formation.
Qingfang Han, Beibei Lin, Ziwei Liu, Mengsha Li, Zhaopeng Luo, Xixian Xie, Lijuan Ma, Hao Su, Xiang Sheng   +8 more
wiley   +1 more source

High energy-charged cell factory for heterologous protein synthesis [PDF]

, 2009
Overexpression of gluconeogenic phosphoenolpyruvate carboxykinase (PCK) under glycolytic conditions enables Escherichia coli to maintain a greater intracellular ATP concentration and, consequently, to up-regulate genes for amino acid and nucleotide ...
Hye Jung Kim, Pil Kim, Sang Yup Lee, Yeong Deok Kwon   +3 more
core   +1 more source

The Role of Tyrosine 207 in the Reaction Catalyzed by Saccharomyces cerevisiae phosphoenolpyruvate carboxykinase

Biological Research, 2010
The functional signifcance of tyrosine 207 of Saccharomyces cerevisiae phosphoenolpyruvate carboxykinase was explored by examining the kinetic properties of the Tyr207Leu mutant. The variant enzyme retained the structural characteristics of the wild-type
Cherie Andrade, Carolina Sepulveda, Emilio Cardemil, Ana M Jabalquinto   +3 more
doaj  

Insights Into the Conformational Dynamics of the Cytoplasmic Domain of Metal‐Sensing Sensor Histidine Kinase ZraS

Proteins: Structure, Function, and Bioinformatics, EarlyView.
ABSTRACT ZraS is a metal sensor integral to ZraPSR, a two‐component signaling system found in enterobacters. It belongs to a family of bifunctional sensor histidine kinases (SHKs) and is speculated to sense zinc‐induced stress on the bacterial envelope.
Nilima Mahapatra, Pranjal Mahanta, Shubhant Pandey, Rudresh Acharya   +3 more
wiley   +1 more source

Phenotypic landscape inference reveals multiple evolutionary paths to C$_4$ photosynthesis [PDF]

, 2013
C$_4$ photosynthesis has independently evolved from the ancestral C$_3$ pathway in at least 60 plant lineages, but, as with other complex traits, how it evolved is unclear.
Abramoff, Adams, Akyildiz, Aubry, Beebe, Brown, Brown, Bruhl, Bustin, Casati, Cheng, Christin, Christin, Christin, Christin, Christin, Devi, Devi, Edwards, Furbank, Gavrilets, Goldstein, Gowik, Griffiths, Hatch, Hattersley, Hattersley, Heckman, Hibberd, Hill, Holaday, Holaday, Holaday, Hylton, Johnson, Kajala, Keeley, Kennedy, Khoshravesh, Kidwell, Koteyeva, Kozmik, Ku, Ku, Ku, Ku, Langdale, Livak, Lobkovsky, McKown, McKown, Mooers, Moore, Muhaidat, Osborne, P’yankov, Rabiner, Rajendrudu, Rathnam, Rathnam, Rawsthorne, Rawsthorne, Revuz, Rosche, Roweis, Sage, Sage, Sage, Santos, Sayre, Slack, Smith, Steiner, Ueno, Ueno, Vicentini, Vogan, Voznesenskaya, Voznesenskaya, Voznesenskaya, Wasserman, Weinreich, Whibley, Williams, Wilson, Wiludda, Wittkopp, Wright, Zhu   +88 more
core   +3 more sources

What Is the Metabolic Role of Phosphoenolpyruvate Carboxykinase?*

Journal of Biological Chemistry, 2009
The enzyme phosphoenolpyruvate carboxykinase (GTP; EC 4.1.1.32) (PEPCK)2 has the unusual distinction of being very well studied but metabolically misunderstood.
Jianqi Yang, S. Kalhan, R. Hanson
semanticscholar   +1 more source

Hyperspectral Raman imaging to understand patterns in dried biofluids in Alzheimer's disease

VIEW, EarlyView.
Raman spectroscopy is commonly used to identify biomarkers in biological fluids, often focusing on the outer ring of dried droplets due to molecular accumulation from the coffee ring effect. However, this approach may overlook important spectral information, so hyperspectral Raman mapping is used to analyze the entire droplet and identify optimal ...
Eneko Lopez, Giulia Gorla, Jaione Etxebarria‐Elezgarai, Julene Aramendia, Kepa Castro, Maite García‐Sebastián, Pablo Martínez‐Lage, Andreas Seifert, Jose Manuel Amigo   +8 more
wiley   +1 more source

Phosphoenolpyruvate carboxykinase in cherry (Prunus avium L.) fruit during development.

Journal of Experimental Botany, 2011
In this study the abundance and location of phosphoenolpyruvate carboxykinase (PEPCK) was determined in the flesh and skin of the sweet cherry (Prunus avium L.) cultivar Durone Nero II during development. PEPCK was not present in young fruit but appeared
R. P. Walker, A. Battistelli, S. Moscatello, ZHI-HUI Chen, R. Leegood, F. Famiani   +5 more
semanticscholar   +1 more source

Differential gene expression in Chorthippus parallelus (Zetterstedt, 1821) (Orthoptera: Acrididae: Gomphocerinae) induced by Wolbachia infection

Insect Science, EarlyView.
Distinct lineages of the grasshopper Chorthippus parallelus (Orthoptera: Acrididae) form a well‐known hybrid zone (HZ) in the Pyrenees mountain range; the Iberian endemism C. p. erythropus (Cpe) and the subspecies C. p. parallelus, (Cpp) widely distributed throughout the rest of Europe. Both subspecies differ in diverse traits, including the strains of
Patricia Jiménez‐Florido, Mónica Aquilino, David Buckley, José L. Bella, Rosario Planelló   +4 more
wiley   +1 more source

Longevity Humans Have Youthful Erythrocyte Function and Metabolic Signatures

Aging Cell, Volume 24, Issue 5, May 2025.
Longevity humans have “a youthful erythrocyte function and metabolism” with a youth‐like oxygen release and anti‐oxidative capability to combat tissue hypoxia and improve healthspan. ABSTRACT Longevity individuals have lower susceptibility to chronic hypoxia, inflammation, oxidative stress, and aging‐related diseases.
Fang Yu, Changhan Chen, Wuping Liu, Zhixiang Zhao, Yuhua Fan, Zhenjiang Li, Weilun Huang, Tingting Xie, Cheng Luo, Zhouzhou Yao, Qi Guo, Zhiyu Yang, Juan Liu, Yujin Zhang, Rodney E. Kellems, Jian Xia, Ji Li, Yang Xia   +17 more
wiley   +1 more source