Results 1 to 10 of about 43,726 (164)

18S Ribosomal RNA and Tetrapod Phylogeny [PDF]

open access: yesSystematic Biology, 2003
Previous phylogenetic analyses of tetrapod 18S ribosomal RNA (rRNA) sequences support the grouping of birds with mammals, whereas other molecular data, and morphological and paleontological data favor the grouping of birds with crocodiles. The 18S rRNA gene has consequently been considered odd, serving as "definitive evidence of different genes ...
Xuhua Xia, Karl M Kjer, Xia Xuhua
exaly   +3 more sources

Structural and functional analysis of Utp24, an endonuclease for processing 18S ribosomal RNA. [PDF]

open access: yesPLoS ONE, 2018
The precursor ribosomal RNA is processed by multiple steps of nucleolytic cleavage to generate mature rRNAs. Utp24 is a PIN domain endonuclease in the early 90S precursor of small ribosomal subunit and is proposed to cleave at sites A1 and A2 of pre-rRNA.
Weidong An, Yifei Du, Keqiong Ye
doaj   +4 more sources

Optimal eukaryotic 18S and universal 16S/18S ribosomal RNA primers and their application in a study of symbiosis.

open access: yesPLoS ONE, 2014
Eukaryotic 18S ribosomal RNA (rRNA) gene primers that feature a wide coverage are critical in detecting the composition of eukaryotic microscopic organisms in ecosystems.
Yong Wang   +4 more
doaj   +4 more sources

Selection of reference genes for expression analysis using quantitative real-time PCR in the pea aphid, Acyrthosiphon pisum (Harris) (Hemiptera, Aphidiae). [PDF]

open access: yesPLoS ONE, 2014
To facilitate gene expression study and obtain accurate qRT-PCR analysis, normalization relative to stable expressed housekeeping genes is required. In this study, expression profiles of 11 candidate reference genes, including actin (Actin), elongation ...
Chunxiao Yang   +3 more
doaj   +1 more source

The final step of 40S ribosomal subunit maturation is controlled by a dual key lock

open access: yeseLife, 2021
Preventing premature interaction of pre-ribosomes with the translation apparatus is essential for translational accuracy. Hence, the final maturation step releasing functional 40S ribosomal subunits, namely processing of the 18S ribosomal RNA 3′ end, is ...
Laura Plassart   +12 more
doaj   +1 more source

Exonuclease resistant 18S and 25S ribosomal RNA components in yeast are possibly newly transcribed by RNA polymerase II

open access: yesBMC Molecular and Cell Biology, 2020
Background We have previously reported 18S and 25S ribosomal RNA molecules in Candida albicans resistant to processive 5′ → 3′ exonuclease, appearing as cells approached stationary growth phase. Initial analysis pointed to extra phosphate(s) at their 5′-
Jacob Fleischmann   +4 more
doaj   +1 more source

Transcriptional repressor NIR functions in the ribosome RNA processing of both 40S and 60S subunits. [PDF]

open access: yesPLoS ONE, 2012
BACKGROUND: NIR was identified as an inhibitor of histone acetyltransferase and it represses transcriptional activation of p53. NIR is predominantly localized in the nucleolus and known as Noc2p, which is involved in the maturation of the 60S ribosomal ...
Jianguo Wu   +7 more
doaj   +1 more source

Basepairing with 18S ribosomal RNA in internal initiation of translation [PDF]

open access: yesFEBS Letters, 1994
In concert with the translation initiation factors ‘trans‐acting’ factors function specifically during internal initiation on picornaviral mRNAs. Of these trans‐acting factors, two have been identified as the La‐protein and the polypyrimidine tract binding protein.
Scheper, G C, Voorma, H O, Thomas, A A
openaire   +3 more sources

Cockayne Syndrome-Associated CSA and CSB Mutations Impair Ribosome Biogenesis, Ribosomal Protein Stability, and Global Protein Folding

open access: yesCells, 2021
Cockayne syndrome (CS) is a developmental disorder with symptoms that are typical for the aging body, including subcutaneous fat loss, alopecia, and cataracts.
Mingyue Qiang   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy