Results 31 to 40 of about 455,663 (298)

Cryo-EM structure of catalytic ribonucleoprotein complex RNase MRP

open access: yesNature Communications, 2020
Ribozyme-based RNase MRP is an essential eukaryotic enzyme involved in the maturation of rRNA and is evolutionarily related to RNase P. Here, the authors present the 3.0 Å cryo-EM structure of the S.
Anna Perederina   +6 more
doaj   +1 more source

Influence of Conformation of M. tuberculosis RNase P Protein Subunit on Its Function. [PDF]

open access: yesPLoS ONE, 2016
RNase P is an essential enzyme that processes 5' end leader sequence of pre-tRNA to generate mature tRNA. The bacterial RNase Ps contain a RNA subunit and one protein subunit, where the RNA subunit contains the catalytic activity.
Alla Singh   +3 more
doaj   +1 more source

Evolution and thermodynamics of the slow unfolding of hyperstable monomeric proteins

open access: yesBMC Evolutionary Biology, 2010
Background The unfolding speed of some hyperthermophilic proteins is dramatically lower than that of their mesostable homologs. Ribonuclease HII from the hyperthermophilic archaeon Thermococcus kodakaraensis (Tk-RNase HII) is stabilized by its remarkably
Koga Yuichi   +8 more
doaj   +1 more source

Solution structure of RNase P RNA [PDF]

open access: yesRNA, 2011
The ribonucleoprotein enzyme ribonuclease P (RNase P) processes tRNAs by cleavage of precursor-tRNAs. RNase P is a ribozyme: The RNA component catalyzes tRNA maturation in vitro without proteins. Remarkable features of RNase P include multiple turnovers in vivo and ability to process diverse substrates.
Alexei V, Kazantsev   +5 more
openaire   +2 more sources

Human serum RNase-L level is inversely associated with metabolic syndrome and age

open access: yesCardiovascular Diabetology, 2017
Background Ribonuclease-L (RNase-L) was known to be a ubiquitous enzyme involved in several cellular functions, especially innate immunity. It was recently shown to participate in adipogenesis in rodents.
Yi-Ting Wang   +6 more
doaj   +1 more source

Phosphatidic acid counteracts S-RNase signaling in pollen by stabilizing the actin cytoskeleton [PDF]

open access: yes, 2018
S-RNase is the female determinant of self-incompatibility (SI) in pear (Pyrus bretschneideri). After translocation to the pollen tube, S-RNase degrades rRNA and induces pollen tube death in an S-haplotype-specific manner. In this study, we found that the
Chen, Jianqing   +7 more
core   +1 more source

Is alba an RNase P subunit? [PDF]

open access: yesRNA Biology, 2007
It has been suggested that Alba, a well-established chromatin protein in Archaea, is also a subunit of the archaeal RNase P holoenzyme, based on the observation that the homolog of this protein in humans has been shown to be associated with RNase P activity.
J Chris, Ellis   +2 more
openaire   +2 more sources

Mouse ribonuclease III. cDNA structure, expression analysis, and chromosomal location

open access: yesBMC Genomics, 2002
Background Members of the ribonuclease III superfamily of double-stranded(ds)-RNA-specific endoribonucleases participate in diverse RNA maturation and decay pathways in eukaryotic and prokaryotic cells. A human RNase III orthologue has been implicated in
Nicholson Rhonda H   +2 more
doaj   +1 more source

Protein synthesis inhibitors and catalytic RNA Effect of puromycin on tRNA precursor processing by the RNA component of Escherichia coli RNase P [PDF]

open access: yes, 1989
RNase P and ribosomes must interact with similar substrate molecules, tRNA precursors in the case of RNase P and aminoacyl-, peptidyl- or free tRNAs in the case of ribosomes.
Direcció Tècnica d'Urbanisme   +1 more
core   +1 more source

The catalytic core of RNase P [PDF]

open access: yesNucleic Acids Research, 1996
A deletion mutant of the catalytic RNA component of Escherichia coli RNase P missing residues 87-241 retains the ability to interact with the protein component to form a functional catalyst. The deletion of this phylogenetically conserved region significantly increases the Km, indicating that the deleted structures may be important for binding to the ...
C J, Green, R, Rivera-León, B S, Vold
openaire   +2 more sources

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