User profiles for Alexis R. Barr

Alexis Barr

MRC-LMS, Imperial College London
Verified email at ic.ac.uk
Cited by 2615

Aurora-A: the maker and breaker of spindle poles

AR Barr, F Gergely - Journal of cell science, 2007 - journals.biologists.com
The gene encoding the Aurora-A protein kinase is located in the 20q13 breast cancer amplicon
and is also overexpressed in colorectal, pancreatic and gastric tumours. Although Aurora…

[HTML][HTML] DNA damage during S-phase mediates the proliferation-quiescence decision in the subsequent G1 via p21 expression

AR Barr, S Cooper, FS Heldt, F Butera, H Stoy… - Nature …, 2017 - nature.com
Following DNA damage caused by exogenous sources, such as ionizing radiation, the
tumour suppressor p53 mediates cell cycle arrest via expression of the CDK inhibitor, p21. …

A primary microcephaly protein complex forms a ring around parental centrioles

JH Sir, AR Barr, AK Nicholas, OP Carvalho… - Nature …, 2011 - nature.com
Autosomal recessive primary microcephaly (MCPH) is characterized by a substantial
reduction in prenatal human brain growth without alteration of the cerebral architecture and is …

Single-cell dynamics determines response to CDK4/6 inhibition in triple-negative breast cancer

US Asghar, AR Barr, R Cutts, M Beaney, I Babina… - Clinical Cancer …, 2017 - AACR
Purpose: Triple-negative breast cancer (TNBC) is a heterogeneous subgroup of breast
cancer that is associated with a poor prognosis. We evaluated the activity of CDK4/6 inhibitors …

A screen for morphological complexity identifies regulators of switch-like transitions between discrete cell shapes

…, X Xia, F Li, MA Garcia, L Evans, AR Barr… - Nature cell …, 2013 - nature.com
The way in which cells adopt different morphologies is not fully understood. Cell shape could
be a continuous variable or restricted to a set of discrete forms. We developed quantitative …

[HTML][HTML] Endothelial sensing of AHR ligands regulates intestinal homeostasis

…, BR Pennycook, J Sanchez-Garrido, S Vernia, AR Barr… - Nature, 2023 - nature.com
Endothelial cells line the blood and lymphatic vasculature, and act as an essential physical
barrier, control nutrient transport, facilitate tissue immunosurveillance and coordinate …

[PDF][PDF] A dynamical framework for the all-or-none G1/S transition

AR Barr, FS Heldt, T Zhang, C Bakal, B Novak - Cell systems, 2016 - cell.com
The transition from G1 into DNA replication (S phase) is an emergent behavior resulting
from dynamic and complex interactions between cyclin-dependent kinases (Cdks), Cdk …

Specificity of RNAi, LNA and CRISPRi as loss-of-function methods in transcriptional analysis

…, P Mascalchi, V Quarantotti, AR Barr… - Nucleic acids …, 2018 - academic.oup.com
Loss-of-function (LOF) methods such as RNA interference (RNAi), antisense oligonucleotides
or CRISPR-based genome editing provide unparalleled power for studying the biological …

CDK5RAP2 functions in centrosome to spindle pole attachment and DNA damage response

AR Barr, JV Kilmartin, F Gergely - Journal of cell biology, 2010 - rupress.org
The centrosomal protein, CDK5RAP2, is mutated in primary microcephaly, a
neurodevelopmental disorder characterized by reduced brain size. The Drosophila melanogaster …

The F-Box DNA helicase Fbh1 prevents Rhp51-dependent recombination without mediator proteins

F Osman, J Dixon, AR Barr… - Molecular and cellular …, 2005 - Am Soc Microbiol
A key step in homologous recombination is the loading of Rad51 onto single-stranded DNA
to form a nucleoprotein filament that promotes homologous DNA pairing and strand …