Results 11 to 20 of about 319,110 (303)

Structural Basis for the Peptidoglycan-Editing Activity of YfiH

open access: yesmBio, 2022
Bacterial cells are encased in peptidoglycan (PG), a polymer of disaccharide N-acetylglucosamine (GlcNAc) and N-acetyl-muramic acid (MurNAc) cross-linked by peptide stems.
Meng-Sheng Lee   +6 more
doaj   +1 more source

Beyond Toxin Transport: Novel Role of ABC Transporter for Enzymatic Machinery of Cereulide NRPS Assembly Line

open access: yesmBio, 2020
Nonribosomal peptide synthetases (NRPSs) and polyketide synthetases (PKSs) play a pivotal role in the production of bioactive natural products, such as antibiotics and cytotoxins. Despite biomedical and pharmaceutical importance, the molecular mechanisms
A. Gacek-Matthews   +5 more
doaj   +1 more source

Hypertoxic self-assembled peptide with dual functions of glutathione depletion and biosynthesis inhibition for selective tumor ferroptosis and pyroptosis

open access: yesJournal of Nanobiotechnology, 2022
Abundant glutathione (GSH) is a biological characteristic of lots of tumor cells. A growing number of studies are utilizing GSH depletion as an effective adjuvant therapy for tumor.
Yang Gao   +8 more
doaj   +1 more source

A Nonribosomal System of Peptide Biosynthesis [PDF]

open access: yesEuropean Journal of Biochemistry, 1996
This review covers peptide structures originating from the concerted action of enzyme systems without the direct participation of nucleic acids. Biosynthesis proceeds by formation of linear peptidyl intermediates which may be enzymatically modified as well as transformed into specific cyclic structures.
H, Kleinkauf, H, Von Döhren
openaire   +2 more sources

Endogenous cross-talk of fungal metabolites.

open access: yesFrontiers in Microbiology, 2015
Non-ribosomal peptide synthesis in fungi requires a ready supply of proteogenic and non-proteogenic amino acids which are subsequently incorporated into the nascent non-ribosomal peptide via a thiotemplate mechanism catalysed by non-ribosomal peptide ...
Kevin J Sheridan   +2 more
doaj   +1 more source

A Possible Role of Allatostatin C in Inhibiting Ecdysone Biosynthesis Revealed in the Mud Crab Scylla paramamosain

open access: yesFrontiers in Marine Science, 2021
C-type allatostatins (C-type ASTs) are a family of structurally related neuropeptides found in a wide range of insects and crustaceans. To date, the C-type allatostatin receptor in crustaceans has not been deorphaned, and little is known about its ...
An Liu   +3 more
doaj   +1 more source

Phylogenetic Study of Polyketide Synthases and Nonribosomal Peptide Synthetases Involved in the Biosynthesis of Mycotoxins

open access: yesToxins, 2013
Polyketide synthase (PKSs) and nonribosomal peptide synthetase (NRPSs) are large multimodular enzymes involved in biosynthesis of polyketide and peptide toxins produced by fungi.
Massimo Ferrara   +2 more
doaj   +1 more source

Bioprocess Development for Lantibiotic Ruminococcin-A Production in Escherichia coli and Kinetic Insights Into LanM Enzymes Catalysis [PDF]

open access: yes, 2019
Ruminococcin-A (RumA) is a peptide antibiotic with post-translational modifications including thioether cross-links formed from non-canonical amino acids, called lanthionines, synthesized by a dedicated lanthionine-generating enzyme RumM.
Adrian, Lorenz   +5 more
core   +1 more source

The insect pathogen Serratia marcescens Db10 uses a hybrid non-ribosomal peptide synthetase-polyketide synthase to produce the antibiotic althiomycin [PDF]

open access: yes, 2012
There is a continuing need to discover new bioactive natural products, such as antibiotics, in genetically-amenable micro-organisms. We observed that the enteric insect pathogen, Serratia marcescens Db10, produced a diffusible compound that inhibited the
Amy J. Gerc   +5 more
core   +3 more sources

Structure analysis of biologically important prokaryotic glycopolymers [PDF]

open access: yes, 2013
Of the many post-translational modifications organisms can undertake, glycosylation is the most prevalent and the most diverse. The research in this thesis focuses on the structural characterisation of glycosylation in two classes of glycopolymer (
Ventura, Valeria Victoria   +1 more
core   +1 more source

Home - About - Disclaimer - Privacy