Results 81 to 90 of about 3,915,254 (313)

Phospholipase C is a novel regulator at the early stages of microspore embryogenesis in Nicotiana tabacum

open access: yesPlant Signaling & Behavior, 2022
Microspore transfers the developmental fate into embryogenesis in vitro regulated by determinant factors of stress-induced. However, the key regulators of microspore embryogenesis (ME) are still largely undiscovered to reveal the mechanism of cell fate ...
Pan Luo   +7 more
doaj   +1 more source

Can we always sweep the details of RNA-processing under the carpet?

open access: yes, 2013
RNA molecules follow a succession of enzyme-mediated processing steps from transcription until maturation. The participating enzymes, for example the spliceosome for mRNAs and Drosha and Dicer for microRNAs, are also produced in the cell and their copy ...
Berg, Johannes   +2 more
core   +1 more source

Cloning, preparation and preliminary crystallographic studies of penicillin V acylase autoproteolytic processing mutants [PDF]

open access: yes, 2005
The crystallization of three catalytically inactive mutants of penicillin Vacylase (PVA) from Bacillus sphaericus in precursor and processed forms is reported.
Brannigan, J A   +6 more
core   +2 more sources

Taurine promotes glucagon‐like peptide‐1 secretion in enteroendocrine L cells

open access: yesFEBS Letters, EarlyView.
Taurine, a sulfur‐containing amino acid, is likely taken up by enteroendocrine L cells via the taurine transporter. This process increases the levels of cytosolic ATP. The increase in intracellular Ca2+ concentrations and glucagon‐like peptide‐1 secretion through membrane depolarization is caused by the closure of ATP‐sensitive potassium channels ...
Yuri Osuga   +6 more
wiley   +1 more source

Fhl1p protein, a positive transcription factor in Pichia pastoris, enhances the expression of recombinant proteins

open access: yesMicrobial Cell Factories, 2019
Background The methylotrophic yeast Pichia pastoris is well-known for the production of a broad spectrum of functional types of heterologous proteins including enzymes, antigens, engineered antibody fragments, and next gen protein scaffolds and many ...
Xueyun Zheng   +6 more
doaj   +1 more source

EKSTRAKSI ENZIM PAPAIN GETAH BUAH PEPAYA UNTUK PROSES \ud DEPROTEINASI PADA PEMBUATAN KITIN DARI KULIT UDANG WINDU \ud DAN APLIKASINYA SEBAGAI BAHAN PENJERNIH SARI BUAH SIRSAK [PDF]

open access: yes, 2009
Papaya can produce enzyme that often called the enzyme papain. Usually, Enzyme is found in the resin or fruit that is still young. Papaya resin (papain) contains quite a variety of enzyme that is proteolotik (The protein).
PUSPANINGRUM, LILIANTI
core  

Astroenzymology – the environmental limits of enzyme activity [PDF]

open access: yes, 2003
Using organisms from extreme terrestrial environments as models for extraterrestrial life may lead us to underestimate the range of environments that life may inhabit.
Daniel, Roy M.
core   +2 more sources

The multiple roles of the NlpC_P60 peptidase family in mycobacteria – an underexplored target for antimicrobial drug discovery

open access: yesFEBS Letters, EarlyView.
The NlpC_P60 superfamily of peptidases is recognised by its key role in bacterial cell wall homeostasis. Recently, studies have also described the involvement of NlpC_P60‐like enzymes in bacterial competitive mechanisms and pathogenesis across several lineages.
Catharina dos Santos Silva   +1 more
wiley   +1 more source

Cyclic nucleotide specificity of the activator and catalytic sites of a cGMP-stimulated cGMP phosphodiesterase from Dictyostelium discoideum [PDF]

open access: yes, 1985
The cellular slime mold Dictyostelium discoideum has an intracellular phosphodiesterase which specifically hydrolyzes cGMP. The enzyme is activated by low cGMP concentrations, and is involved in the reduction of chemoattractant-mediated elevations of ...
Baraniak, Janina,   +8 more
core   +2 more sources

Single-substrate Enzyme Kinetics: The Quasi-steady-state Approximation and Beyond [PDF]

open access: yesJ. Math. Chem. 51 (2013) 1467, 2012
We analyze the standard model of enzyme-catalyzed reactions at various substrate-enzyme ratios to identify the regions of validity of the quasi-steady-state approximation. Certain prevalent conditions are checked and compared against the actual findings. Efficacies of a few other measures are highlighted. Some very recent observations are rationalized,
arxiv  

Home - About - Disclaimer - Privacy