Results 31 to 40 of about 900,801 (302)

Structure and biosynthesis of fungal secondary metabolites [PDF]

open access: yes, 2013
The root rot pathogen Heterobasidion annosum s.l., i.e. H. abietinum, H. parviporum, H. annosum s.s., H. irregulare and H. occidentale, and the biocontrol fungus Phlebiopsis gigantea were investigated regarding their secondary metabolites.
Hansson, David
core   +1 more source

Natriuretic peptide receptor-C regulates coronary blood flow and prevents myocardial ischemia/reperfusion injury: novel cardioprotective role for endothelium-derived C-type natriuretic peptide [PDF]

open access: yes, 2004
Background: Ischemia/reperfusion (I/R) injury complicates myocardial infarction and stroke by exacerbating tissue damage and increasing risk of mortality.
Ramona Scotl   +15 more
core   +1 more source

Characterization of the Lactococcus lactis Nisin A Operon Genes nisP, Encoding a Subtilisin-Like Serine Protease Involved in Precursor Processing, and nisR, Encoding a Regulatory Protein Involved in Nisin Biosynthesis [PDF]

open access: yes, 1993
Biosynthesis of the lantibiotic peptide nisin by Lactococcus lactis NIZO R5 relies on the presence of the conjugative transposon Tn5276 in the chromosome. A 12-kb DNA fragment of Tn5276 including the nisA gene and about 10 kb of downstream DNA was cloned
Beerthuyzen, Marke M.   +10 more
core  

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Regulation of neurosteroid biosynthesis by neurotransmitters and neuropeptides

open access: yesFrontiers in Endocrinology, 2012
The enzymatic pathways leading to the synthesis of bioactive steroids in the brain are now almost completely elucidated in various groups of vertebrates and, during the last decade, the neuronal mechanisms involved in the regulation of neurosteroid ...
Jean-Luc eDo-Rego   +12 more
doaj   +1 more source

New Insights Into Peptide Cannabinoids: Structure, Biosynthesis and Signaling

open access: yesFrontiers in Pharmacology, 2020
Classically, the endocannabinoid system (ECS) consists of endogenous lipids, of which the best known are anandamide (AEA) and 2 arachidonoylglycerol (2-AG), their enzyme machinery for synthesis and degradation and their specific receptors, cannabinoid ...
Agustín Riquelme-Sandoval   +7 more
doaj   +1 more source

A peptide filtering relation quantifies MHC class I peptide optimization [PDF]

open access: yes, 2011
Major Histocompatibility Complex (MHC) class I molecules enable cytotoxic T lymphocytes to destroy virus-infected or cancerous cells, thereby preventing disease progression. MHC class I molecules provide a snapshot of the contents of a cell by binding to
Luca Cardelli   +26 more
core   +1 more source

Nutrient/TOR signaling controls adipose mitochondrial transcription factor A (TFAM) to regulate organismal growth in Drosophila

open access: yesFEBS Letters, EarlyView.
Animals must match their growth rate to available nutrients. We show that in Drosophila larvae, the nutrient‐sensing TOR kinase controls growth by regulating levels of TFAM, a key regulator of mitochondrial function, in the adipose tissue. When nutrients are abundant, high TOR activity suppresses TFAM, lowering mitochondrial bioenergetic activity and ...
Shrivani Sriskanthadevan‐Pirahas   +4 more
wiley   +1 more source

Alterations in Neurogenic Inflammatory Responses in Mice Lacking αCGRP

open access: yesThe Scientific World Journal, 2001
a-Calcitonin gene-related peptide (aCGRP) is a pleiotropic peptide neuromodulator that is widely expressed throughout the central and peripheral nervous systems.
Jongho Lee, Ronald B. Emeson
doaj   +1 more source

Golgi enzymes are retrieved from the plasma membrane to the trans‐Golgi network

open access: yesFEBS Letters, EarlyView.
Golgi enzymes are traditionally considered resident proteins retained within the Golgi apparatus. Here, we demonstrate that a subset transiently reaches the cell surface and is subsequently retrieved to the trans‐Golgi network via retrograde transport. Using a nanobody‐based toolkit, we uncover a dynamic trafficking cycle of several Golgi enzymes.
Dominik P. Buser, Tina Junne
wiley   +1 more source

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