Results 41 to 50 of about 11,400,092 (255)

The non-canonical CTD of RNAP-II is essential for productive RNA synthesis in Trypanosoma brucei. [PDF]

open access: yesPLoS ONE, 2009
The carboxy-terminal domain (CTD) of the largest subunit (RPB1) of RNA polymerase II (RNAP-II) is essential for gene expression in metazoa and yeast. The canonical CTD is characterized by heptapeptide repeats.
Anish Das, Vivian Bellofatto
doaj   +1 more source

Glucose-Limited Fed-Batch Cultivation Strategy to Mimic Large-Scale Effects in Escherichia coli Linked to Accumulation of Non-Canonical Branched-Chain Amino Acids by Combination of Pyruvate Pulses and Dissolved Oxygen Limitation

open access: yesMicroorganisms, 2021
Insufficient mixing in large-scale bioreactors provokes gradient zones of substrate, dissolved oxygen (DO), pH, and other parameters. E. coli responds to a high glucose, low oxygen feeding zone with the accumulation of mixed acid fermentation products ...
Ángel Córcoles García   +2 more
doaj   +1 more source

Xenogeneic, extracorporeal liver perfusion in primates improves the ratio of branched-chain amino acids to aromatic amino acids (Fischer's ratio) [PDF]

open access: yes, 1999
In fulminant hepatic failure (FHF), the development of hepatic encephalopathy is associated with grossly abnormal concentrations of plasma amino acids (PAA).
Puhl, G.   +7 more
core   +1 more source

Recombinant Macrocyclic Lanthipeptides Incorporating Non-Canonical Amino Acids [PDF]

open access: yesJournal of the American Chemical Society, 2017
Nisin is a complex lanthipeptide that has broad spectrum antibacterial activity. In efforts to broaden the structural diversity of this ribosomally synthesized lantibiotic, we now report the recombinant expression of Nisin variants that incorporate noncanonical amino acids (ncAAs) at discrete positions.
Claudio Zambaldo   +3 more
openaire   +2 more sources

Enhancing the performance of a mutant pyrrolysyl-tRNA synthetase to create a highly versatile eukaryotic cell-free protein synthesis tool

open access: yesScientific Reports, 2023
Modification of proteins with a broad range of chemical functionalities enables the investigation of protein structure and activity by manipulating polypeptides at single amino acid resolution.
Jeffrey L. Schloßhauer   +5 more
doaj   +1 more source

Phase-separation propensity of non-ionic amino acids in peptide-based complex coacervation systems [PDF]

open access: yes, 2022
Uncovering the sequence-encoded molecular grammar that governs the liquid–liquid phase separation (LLPS) of proteins is a crucial issue to understand dynamic compartmentalization in living cells and the emergence of protocells. Here, we present a model
Kentaro, Shiraki   +6 more
core   +2 more sources

Development of Multivalent Conjugates with a Single Non‐Canonical Amino Acid

open access: yesChemBioChem, 2023
AbstractProteins represent powerful biomacromolecules due to their unique functionality and broad utility both in the cell and in non‐biological applications. The genetic encoding of non‐canonical amino acids (ncAAs) facilitates functional diversification of these already powerful proteins.
Naya K. Burrow   +8 more
openaire   +2 more sources

The genetic incorporation of thirteen novel non-canonical amino acids [PDF]

open access: yesChem. Commun., 2014
Thirteen novel non-canonical amino acids were synthesized and tested for suppression of an amber codon using a mutant pyrrolysyl-tRNA synthetase–tRNAPylCUA pair.
Alfred, Tuley   +5 more
openaire   +2 more sources

Coupling Bioorthogonal Chemistries with Artificial Metabolism: Intracellular Biosynthesis of Azidohomoalanine and Its Incorporation into Recombinant Proteins

open access: yesMolecules, 2014
In this paper, we present a novel, “single experiment” methodology based on genetic engineering of metabolic pathways for direct intracellular production of non-canonical amino acids from simple precursors, coupled with expanded genetic code.
Ying Ma   +4 more
doaj   +1 more source

Expanding the genetic code of Salmonella with non-canonical amino acids [PDF]

open access: yesScientific Reports, 2016
AbstractThe diversity of non-canonical amino acids (ncAAs) endows proteins with new features for a variety of biological studies and biotechnological applications. The genetic code expansion strategy, which co-translationally incorporates ncAAs into specific sites of target proteins, has been applied in many organisms. However, there have been only few
Qinglei Gan   +3 more
openaire   +2 more sources

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