User profiles for Wendy Johnston

Wendy Johnston

University of Alberta
Verified email at ualberta.ca
Cited by 4509

[PDF][PDF] MicroRNA targeting specificity in mammals: determinants beyond seed pairing

A Grimson, KKH Farh, WK Johnston, P Garrett-Engele… - Molecular cell, 2007 - cell.com
Mammalian microRNAs (miRNAs) pair to 3′UTRs of mRNAs to direct their posttranscriptional
repression. Important for target recognition are ∼7 nt sites that match the seed region of …

The widespread impact of mammalian MicroRNAs on mRNA repression and evolution

KKH Farh, A Grimson, C Jan, BP Lewis, WK Johnston… - Science, 2005 - science.org
Thousands of mammalian messenger RNAs are under selective pressure to maintain 7-nucleotide
sites matching microRNAs (miRNAs). We found that these conserved targets are …

[HTML][HTML] Connecting microRNA genes to the core transcriptional regulatory circuitry of embryonic stem cells

…, S Johnstone, MG Guenther, WK Johnston… - cell, 2008 - cell.com
MicroRNAs (miRNAs) are crucial for normal embryonic stem (ES) cell self-renewal and
cellular differentiation, but how miRNA gene expression is controlled by the key transcriptional …

Mammalian microRNAs: experimental evaluation of novel and previously annotated genes

…, N Spies, D Baek, WK Johnston… - Genes & …, 2010 - genesdev.cshlp.org
MicroRNAs (miRNAs) are small regulatory RNAs that derive from distinctive hairpin transcripts.
To learn more about the miRNAs of mammals, we sequenced 60 million small RNAs from …

RNA-catalyzed RNA polymerization: accurate and general RNA-templated primer extension

WK Johnston, PJ Unrau, MS Lawrence, ME Glasner… - Science, 2001 - science.org
The RNA world hypothesis regarding the early evolution of life relies on the premise that some
RNA sequences can catalyze RNA replication. In support of this conjecture, we describe …

Evolution, biogenesis, expression, and target predictions of a substantially expanded set of Drosophila microRNAs

JG Ruby, A Stark, WK Johnston, M Kellis… - Genome …, 2007 - genome.cshlp.org
MicroRNA (miRNA) genes give rise to small regulatory RNAs in a wide variety of organisms.
We used computational methods to predict miRNAs conserved among Drosophila species …

[HTML][HTML] Attitudes of patients with amyotrophic lateral sclerosis and their care givers toward assisted suicide

L Ganzini, WS Johnston, BH McFarland… - … England Journal of …, 1998 - Mass Medical Soc
Background and Methods Amyotrophic lateral sclerosis (ALS) is a neuromuscular disease
that causes gradual paralysis, respiratory failure, and death, usually within three to five years …

Correlates of suffering in amyotrophic lateral sclerosis

L Ganzini, WS Johnston, WF Hoffman - Neurology, 1999 - AAN Enterprises
Objectives: 1) To determine the prevalence of pain, suffering, poor quality of life, depression,
and hopelessness in people with ALS, and the correlates of suffering and poor quality of life…

The psychological impact of negative TV news bulletins: The catastrophizing of personal worries

WM Johnston, GCL Davey - British journal of psychology, 1997 - Wiley Online Library
This study investigated the effect of the emotional content of television news programmes
on mood state and the catastrophizing of personal worries. Three groups were shown 14‐min …

Unusually effective microRNA targeting within repeat-rich coding regions of mammalian mRNAs

M Schnall-Levin, OS Rissland, WK Johnston… - Genome …, 2011 - genome.cshlp.org
MicroRNAs (miRNAs) regulate numerous biological processes by base-pairing with target
messenger RNAs (mRNAs), primarily through sites in 3′ untranslated regions (UTRs), to …