Results 161 to 170 of about 2,706,723 (382)

Structure of transcribing RNA polymerase II-nucleosome complex

open access: yesNature Communications, 2018
Eukaryotic transcription requires passage of RNA polymerase II (Pol II) through chromatin, which is impaired by nucleosomes. Here the authors report the cryo-EM structure of transcribing Pol II engaged with a downstream nucleosome core particle at an ...
Lucas Farnung   +2 more
doaj   +1 more source

Template-directed biopolymerization: tape-copying Turing machines

open access: yes, 2012
DNA, RNA and proteins are among the most important macromolecules in a living cell. These molecules are polymerized by molecular machines. These natural nano-machines polymerize such macromolecules, adding one monomer at a time, using another linear ...
Chowdhury, Debashish, Sharma, Ajeet K.
core   +1 more source

Evolutionary dynamics of the chloroplast genome in Daphne (Thymelaeaceae): comparative analysis with related genera and insights into phylogenetics

open access: yesFEBS Open Bio, EarlyView.
Comparative analysis of chloroplast genomes from 14 genera of Thymelaeaceae revealed variation in gene content, ranging from 128 to 142 genes, primarily influenced by IR expansion/contraction events and pseudogenization of ndhF, ndhI, and ndhG. Two large inversions were detected within the large single‐copy region, including a synapomorphic inversion ...
Abdullah   +8 more
wiley   +1 more source

Central Dysmyelination in SSADH‐Deficient Humans and Mice

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Succinic semialdehyde dehydrogenase deficiency (SSADHD) is an inherited metabolic disorder characterized by an accumulation of γ‐aminobutyric (GABA). In addition to its synaptic role as an inhibitory neurotransmitter, GABA also plays an important role in myelination.
Itay Tokatly Latzer   +11 more
wiley   +1 more source

Effects of cations on DNA-dependent RNA polymerase. [PDF]

open access: green, 1967
Antero G. So   +3 more
openalex   +1 more source

The elemental mechanism of transcriptional pausing. [PDF]

open access: yes, 2019
Transcriptional pausing underlies regulation of cellular RNA biogenesis. A consensus pause sequence that acts on RNA polymerases (RNAPs) from bacteria to mammals halts RNAP in an elemental paused state from which longer-lived pauses can arise.
Chua, Xien Yu   +6 more
core   +1 more source

Single‐Cell RNA Seq in Sydenham Chorea Shows B Cell HLA‐DR/DQ Upregulation and Plasma Cell Proteasomal Activation

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT The pathogenesis of Sydenham chorea remains unclear. We report a 10‐year‐old girl presenting with subacute chorea and mild carditis following Streptococcal throat infection. Single‐cell RNA sequencing on 30,794 peripheral immune cells from the patient and two sex‐matched controls revealed nine immune cell clusters.
Velda X. Han   +9 more
wiley   +1 more source

Multiple functions of the nonstructural protein 3D in picornavirus infection

open access: yesFrontiers in Immunology
3D polymerase, also known as RNA-dependent RNA polymerase, is encoded by all known picornaviruses, and their structures are highly conserved. In the process of picornavirus replication, 3D polymerase facilitates the assembly of replication complexes and ...
Chenxia Xu   +83 more
doaj   +1 more source

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