Results 1 to 10 of about 30,731 (188)

Non-canonical binding interactions of the RNA recognition motif (RRM) domains of P34 protein modulate binding within the 5S ribonucleoprotein particle (5S RNP). [PDF]

open access: yesPLoS ONE, 2017
RNA binding proteins are involved in many aspects of RNA metabolism. In Trypanosoma brucei, our laboratory has identified two trypanosome-specific RNA binding proteins P34 and P37 that are involved in the maturation of the 60S subunit during ribosome ...
Anyango D Kamina, Noreen Williams
doaj   +2 more sources

TAR RNA Mimicry of INI1 and Its Influence on Non-Integration Function of HIV-1 Integrase [PDF]

open access: yesViruses
HIV-1 integrase (IN), an essential viral protein that catalyzes integration, also influences non-integration functions such as particle production and morphogenesis.
Ganjam V. Kalpana   +2 more
doaj   +2 more sources

Structure of a transcribing Pol II-DSIF-SPT6-U1 snRNP complex [PDF]

open access: yesNature Communications
In eukaryotic cells, splicing occurs predominantly co-transcriptionally, enhancing splicing efficiency and fidelity while introducing an additional layer of regulation over gene expression.
Luojia Zhang   +8 more
doaj   +2 more sources

CRISPR/Cas9 ribonucleoprotein mediated DNA-free genome editing in larch [PDF]

open access: yesForestry Research
Here, a DNA-free genetic editing approach is presented for larch by delivering ribonucleoprotein complexes (RNPs) of CRISPR/Cas9 through particle bombardment.
Miaomiao Ma   +4 more
doaj   +2 more sources

Crystal structure of human U1 snRNP, a small nuclear ribonucleoprotein particle, reveals the mechanism of 5′ splice site recognition [PDF]

open access: yeseLife, 2015
U1 snRNP binds to the 5′ exon-intron junction of pre-mRNA and thus plays a crucial role at an early stage of pre-mRNA splicing. We present two crystal structures of engineered U1 sub-structures, which together reveal at atomic resolution an almost ...
Yasushi Kondo   +3 more
doaj   +2 more sources

The Broad-Spectrum Antiviral Protein ZAP Restricts Human Retrotransposition. [PDF]

open access: yesPLoS Genetics, 2015
Intrinsic immunity describes the set of recently discovered but poorly understood cellular mechanisms that specifically target viral pathogens. Their discovery derives in large part from intensive studies of HIV and SIV that revealed restriction factors ...
John L Goodier   +4 more
doaj   +1 more source

Group II intron protein localization and insertion sites are affected by polyphosphate. [PDF]

open access: yesPLoS Biology, 2008
Mobile group II introns consist of a catalytic intron RNA and an intron-encoded protein with reverse transcriptase activity, which act together in a ribonucleoprotein particle to promote DNA integration during intron mobility.
Junhua Zhao   +5 more
doaj   +1 more source

Multimodal Functionalities of HIV-1 Integrase

open access: yesViruses, 2022
Integrase is the retroviral protein responsible for integrating reverse transcripts into cellular genomes. Co-packaged with viral RNA and reverse transcriptase into capsid-encased viral cores, human immunodeficiency virus 1 (HIV-1) integrase has long ...
Alan N. Engelman, Mamuka Kvaratskhelia
doaj   +1 more source

Cryotomography of budding influenza a virus reveals filaments with diverse morphologies that mostly do not bear a genome at their distal end [PDF]

open access: yes, 2013
Influenza viruses exhibit striking variations in particle morphology between strains. Clinical isolates of influenza A virus have been shown to produce long filamentous particles while laboratory-adapted strains are predominantly spherical.
A Ali   +45 more
core   +7 more sources

YRNAs: New Insights and Potential Novel Approach in Head and Neck Squamous Cell Carcinoma

open access: yesCells, 2020
YRNAs are a class of non-coding RNAs that are components of the Ro60 ribonucleoprotein particle and are essential for initiation of DNA replication. Ro60 ribonucleoprotein particle is a target of autoimmune antibodies in patients suffering from systemic ...
Kacper Guglas   +7 more
doaj   +1 more source

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