Results 61 to 70 of about 359,289 (223)

Template-directed biopolymerization: tape-copying Turing machines

open access: yes, 2012
DNA, RNA and proteins are among the most important macromolecules in a living cell. These molecules are polymerized by molecular machines. These natural nano-machines polymerize such macromolecules, adding one monomer at a time, using another linear ...
Chowdhury, Debashish, Sharma, Ajeet K.
core   +1 more source

Towards molecular systems biology of gene transcription and regulation [PDF]

open access: yes, 2010
Ten years after the determination of the RNA polymerase 11 structure, the basic mechanism of mRNA synthesis during gene transcription is known. In the future, the initiation and regulation of transcription must be studied with a combination of structural
Cramer, Patrick
core   +1 more source

Identification of the prebiotic translation apparatus within the contemporary ribosome [PDF]

open access: yes, 2009
A structural element that could have existed independently in the prebiotic era was identified at the active site of the contemporary ribosome. It is suggested to have functioned as a proto-ribosome catalyzing peptide bond formation and non-coded ...
Ada Yonath   +3 more
core   +1 more source

The correlation between serum bone metabolism indexes and bone disease and survival in newly diagnosed multiple myeloma patients

open access: yesCancer Biology & Therapy
Objective Myeloma-related bone disease (MBD) is one of the most common complications of multiple myeloma (MM). This study aims to investigate the correlation between serum bone metabolism indexes (BMIs), the clinical characteristics and prognosis of ...
Linlin Huang   +12 more
doaj   +1 more source

The Peach RGF/GLV Signaling Peptide pCTG134 Is Involved in a Regulatory Circuit That Sustains Auxin and Ethylene Actions [PDF]

open access: yes, 2017
In vascular plants the cell-to-cell interactions coordinating morphogenetic and physiological processes are mediated, among others, by the action of hormones, among which also short mobile peptides were recognized to have roles as signals.
Dale F. Mierke   +10 more
core   +3 more sources

Duplication of the tuf gene, which encodes peptide chain elongation factor Tu, is widespread in Gram-negative bacteria [PDF]

open access: yesJournal of Bacteriology, 1981
The tuf gene which encodes peptide chain elongation factor Tu was found to be duplicated in nine enteric and four nonenteric gram-negative bacteria, but present only in one copy in two gram-positive genera. In two of the nonenteric gram-negative genera, Pseudomonas and Caulobacter, the duplicate tuf genes were found to be very close together on the ...
D, Filer, A V, Furano
openaire   +2 more sources

Divergent Protein Motifs Direct Elongation Factor P-Mediated Translational Regulation in Salmonella enterica and Escherichia coli

open access: yesmBio, 2013
Elongation factor P (EF-P) is a universally conserved bacterial translation factor homologous to eukaryotic/archaeal initiation factor 5A. In Salmonella, deletion of the efp gene results in pleiotropic phenotypes, including increased susceptibility to ...
Steven J. Hersch   +6 more
doaj   +1 more source

The ABCF proteins in Escherichia coli individually cope with ‘hard-to-translate’ nascent peptide sequences

open access: yesNucleic Acids Research
Organisms possess a wide variety of proteins with diverse amino acid sequences, and their synthesis relies on the ribosome. Empirical observations have led to the misconception that ribosomes are robust protein factories, but in reality, they have ...
Yuhei Chadani   +8 more
semanticscholar   +1 more source

Polycistronic Delivery of IL-10 and NT-3 Promotes Oligodendrocyte Myelination and Functional Recovery in a Mouse Spinal Cord Injury Model. [PDF]

open access: yes, 2020
One million estimated cases of spinal cord injury (SCI) have been reported in the United States and repairing an injury has constituted a difficult clinical challenge.
Anderson, Aileen J   +8 more
core   +1 more source

Atomic mutagenesis of stop codon nucleotides reveals the chemical prerequisites for release factor-mediated peptide release. [PDF]

open access: yes, 2018
Termination of protein synthesis is triggered by the recognition of a stop codon at the ribosomal A site and is mediated by class I release factors (RFs).
Clementi, Nina   +11 more
core   +3 more sources

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