Results 61 to 70 of about 688,386 (210)

Allosteric collaboration between elongation factor G and the ribosomal L1 stalk directs tRNA movements during translation [PDF]

open access: yes, 2009
Determining the mechanism by which transfer RNAs (tRNAs) rapidly and precisely transit through the ribosomal A, P and E sites during translation remains a major goal in the study of protein synthesis. Here, we report the real-time dynamics of the L1 stalk, a structural element of the large ribosomal subunit that is implicated in directing tRNA ...
arxiv   +1 more source

Association between semen microbiome disorder and sperm DNA damage

open access: yesMicrobiology Spectrum
DNA fragmentation index (DFI), a new biomarker to diagnose male infertility, is closely associated with poor reproductive outcomes. Previous research reported that seminal microbiome correlated with sperm DNA integrity, suggesting that the microbiome may
Junxian He   +7 more
doaj   +1 more source

The complete mitochondrial genome of Glossaulax reiniana (Littorinimorpha: Naticidae)

open access: yesMitochondrial DNA. Part B. Resources, 2018
In the present study, the complete mitochondrial genome of Glossaulax reiniana was determined using the next-generation sequencing. The circular genome was found to be 15,254 bp in length and had an overall nucleotide composition of 30.6% A, 14.1% C, 15 ...
Peng-Yu Li   +3 more
doaj   +1 more source

Frequency of Bacetrial Content Finding in Persistant Periapical Lesions

open access: yesActa Stomatologica Croatica, 2017
Objectives: To determine the percentage of persistant apical lesions positive for bacterial nucleic acids, to detect microorganisms difficult to cultivate in persistant apical lesions by PCR and relate them to endodontic failure, clinical symptoms and ...
Joško Grgurević   +5 more
doaj   +1 more source

Control of ribosome traffic by position-dependent choice of synonymous codons [PDF]

open access: yesPhys. Biol. 10 (2013) 056011, 2013
Messenger RNA encodes a sequence of amino acids by using codons. For most amino acids there are multiple synonymous codons that can encode the amino acid. The translation speed can vary from one codon to another, thus there is room for changing the ribosome speed while keeping the amino acid sequence and hence the resulting protein.
arxiv   +1 more source

A systematic search for discriminating sites in the 16S ribosomal RNA gene [PDF]

open access: yesMicrobial Informatics and Experimentation, 2014
The 16S rRNA is by far the most common genomic marker used for prokaryotic classification, and has been used extensively in metagenomic studies over recent years. Along the 16S gene there are regions with more or less variation across the kingdom of bacteria.
Vinje, Hilde   +3 more
openaire   +4 more sources

MOLECULAR IDENTIFICATION OF SEVERAL CLINICALLYIMPORTANT BACTERIA INCLUDING ENTEROBACTERIA BYPARTIAL 16S RIBOSOMAL RNA GENE SEQUENCE COMPARISON

open access: yesZdravniški Vestnik, 2008
BACKGROUND The correct identification of bacterial isolates is paramount for the correct diagnosis andtreatment of patients. The standard approach for bacterial identification relies on phenotypic tests, which are often time-consuming and unreliable when
Janez Šimenc   +2 more
doaj  

Phylogenetically informed Bayesian truncated copula graphical models for microbial association networks [PDF]

open access: yesarXiv, 2021
Microorganisms play a critical role in host health. The advancement of high-throughput sequencing technology provides opportunities for a deeper understanding of microbial interactions. However, due to the limitations of 16S ribosomal RNA sequencing, microbiome data are zero-inflated, and a quantitative comparison of microbial abundances cannot be made
arxiv  

Distribution of dwell times of a ribosome: effects of infidelity, kinetic proofreading and ribosome crowding [PDF]

open access: yesPhysical Biology, 8 (2011) 026005, 2010
Ribosome is a molecular machine that polymerizes a protein where the sequence of the amino acid residues, the monomers of the protein, is dictated by the sequence of codons (triplets of nucleotides) on a messenger RNA (mRNA) that serves as the template. The ribosome is a molecular motor that utilizes the template mRNA strand also as the track. Thus, in
arxiv   +1 more source

The impact of molecular biology on assessment of water quality: advantages and limitations of current techniques [PDF]

open access: yes, 1997
The advent of molecular biology has had a dramatic impact on all aspects of biology, not least applied microbial ecology. Microbiological testing of water has traditionally depended largely on culture techniques.
Saunders, J.R., Saunders, V.A.
core  

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