Results 21 to 30 of about 10,182 (283)

Structural and Functional Insights into Human Nuclear Cyclophilins

open access: yesBiomolecules, 2018
The peptidyl prolyl isomerases (PPI) of the cyclophilin type are distributed throughout human cells, including eight found solely in the nucleus. Nuclear cyclophilins are involved in complexes that regulate chromatin modification, transcription, and pre ...
Caroline Rajiv, Tara L. Davis
doaj   +1 more source

Functional mammalian spliceosomal complex E contains SMN complex proteins in addition to U1 and U2 snRNPs [PDF]

open access: yes, 2011
Copyright @ 2011 The Authors. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0), which permits unrestricted non-commercial use ...
Abovich   +63 more
core   +2 more sources

The spliceosome as a transposon sensor [PDF]

open access: yesRNA Biology, 2013
The ability to distinguish self from non-self nucleic acids enables eukaryotes to suppress mobile elements and maintain genome integrity. In organisms from protist to human, this function is performed by RNA silencing pathways. There have been major advances in our understanding of the RNA silencing machinery, but the mechanisms by which these pathways
Dumesic, Phillip A, Madhani, Hiten D
openaire   +5 more sources

The unique spliceosome signature of human pluripotent stem cells is mediated by SNRPA1, SNRPD1, and PNN

open access: yesStem Cell Research, 2017
Spliceosomes are the core host of pre-mRNA splicing, allowing multiple protein isoforms to be produced from a single gene. Herein, we reveal that spliceosomes are more abundant in human pluripotent stem cells (hPSs), including human embryonic stem cells (
Young-Dae Kim   +8 more
doaj   +1 more source

Identification of Yak’s TLR4 Alternative Spliceosomes and Bioinformatic Analysis of TLR4 Protein Structure and Function

open access: yesAnimals, 2020
In this study, the yak’s TLR4 gene alternative spliceosomes were investigated using PCR amplification and cloning to improve disease-resistance in yak and promote efficient utilization of yak’s resources.
Xingdong Wang   +7 more
doaj   +1 more source

The Spliceosome [PDF]

open access: yesMolecular Cell, 2002
In this issue of Molecular Cell, Stevens et al. purify a large particle from yeast extracts that contains all five of the U snRNPs required for pre-mRNA splicing. The existence of this "penta-snRNP" suggests the provocative possibility that spliceosome assembly does not depend upon a pre-mRNA substrate.
openaire   +3 more sources

Inhibición parcial de dos genes que codifican para proteínas del empalmosoma en Giardia intestinalis

open access: yesBiomédica: revista del Instituto Nacional de Salud, 2016
Introducción. Giardia intestinalis es un organismo tempranamente divergente en el que recientemente se demostró la presencia de intrones. La maquinaria responsable de la remoción de intrones en organismos eucariotas superiores es el empalmosoma, el cual ...
Vanessa Gómez, Moisés Wasserman
doaj   +1 more source

The target of the DEAH-box NTP triphosphatase Prp43 in Saccharomyces cerevisiae spliceosomes is the U2 snRNP-intron interaction

open access: yeseLife, 2016
The DEAH-box NTPase Prp43 and its cofactors Ntr1 and Ntr2 form the NTR complex and are required for disassembling intron-lariat spliceosomes (ILS) and defective earlier spliceosomes.
Jean-Baptiste Fourmann   +7 more
doaj   +1 more source

RNAtomy of the Spliceosome’s heart [PDF]

open access: yesThe EMBO Journal, 2013
In his 1543 monumental work De humanis corpori fabrica , Andreas Vesalius used rigorous dissection practices and a mechanistic view of the organ's function to provide the first accurate anatomical description of a human heart. Guided by similar principles of meticulous structural probing and mechanistic explanatory potential, Anokhina and colleagues in
Juan Valcárcel, Sophie Bonnal
openaire   +3 more sources

Structural basis for dual roles of Aar2p in U5 snRNP assembly [PDF]

open access: yes, 2013
Yeast U5 small nuclear ribonucleoprotein particle (snRNP) is assembled via a cytoplasmic precursor that contains the U5-specific Prp8 protein but lacks the U5-specific Brr2 helicase.
Beggs, J.D.   +8 more
core   +1 more source

Home - About - Disclaimer - Privacy