Knockout

The GPCR adaptor protein norbin suppresses the neutrophil-mediated immunity of mice to pneumococcal infection
Streptococcal pneumonia is a worldwide health problem that kills ∼2 million people each year, particularly young children, the elderly, …
Chiara Pantarelli, Dingxin Pan, Stephen Chetwynd, Anne-Katrien Stark, Kirsti Hornigold, Polly Machin, Laraine Crossland, Simon J. Cleary, Martin J. Baker, Elizabeth Hampson, Anna Mandel, Anne Segonds-Pichon, Rachael Walker, Cornelis Van 'T Veer, Yanira Riffo-Vasquez, Klaus Okkenhaug, Simon Pitchford, Heidi C. E. Welch
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Norbin Stimulates the Catalytic Activity and Plasma Membrane Localization of the Guanine-Nucleotide Exchange Factor P-Rex1
P-Rex1 is a guanine-nucleotide exchange factor (GEF) that activates the small G protein (GTPase) Rac1 to control Rac1-dependent …
Dingxin Pan, Mark A. Barber, Kirsti Hornigold, Martin J. Baker, Judit M. Toth, David Oxley, Heidi CE Welch
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A Rac1-Independent Role for P-Rex1 in Melanoblasts
Colin R. Lindsay, Ang Li, William Faller, Brad Ozanne, Heidi Welch, Laura M. Machesky, Owen J. Sansom
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P-Rex and Vav Rac-GEFs in platelets control leukocyte recruitment to sites of inflammation
The small GTPase Rac is required for neutrophil recruitment during inflammation, but its guanine-nucleotide exchange factor (GEF) …
Dingxin Pan, Richard T. Amison, Yanira Riffo-Vasquez, Domenico Spina, Simon J. Cleary, Michael J. Wakelam, Clive P. Page, Simon C. Pitchford, HeidiCE Welch
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P-Rex1 directly activates RhoG to regulate GPCR-driven Rac signalling and actin polarity in neutrophils
G-protein-coupled receptors (GPCRs) regulate the organisation of the actin cytoskeleton by activating the Rac subfamily of small …
George Damoulakis, Laure Gambardella, Kent L. Rossman, Campbell D. Lawson, Karen E. Anderson, Yoshinori Fukui, Heidi C. Welch, Channing J. Der, Len R. Stephens, Phillip T. Hawkins
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P-Rex1 is required for efficient melanoblast migration and melanoma metastasis
Metastases are the major cause of death from melanoma, a skin cancer that has the fastest rising incidence of any malignancy in the …
Colin R. Lindsay, Samuel Lawn, Andrew D. Campbell, William J. Faller, Florian Rambow, Richard L. Mort, Paul Timpson, Ang Li, Patrizia Cammareri, Rachel A. Ridgway, Jennifer P. Morton, Brendan Doyle, Shauna Hegarty, Mairin Rafferty, Ian G. Murphy, Enda W. McDermott, Kieran Sheahan, Katherine Pedone, Alexander J. Finn, Pamela A. Groben, Nancy E. Thomas, Honglin Hao, Craig Carson, Jim C. Norman, Laura M. Machesky, William M. Gallagher, Ian J. Jackson, Leon Van Kempen, Friedrich Beermann, Channing Der, Lionel Larue, Heidi C. Welch, Brad W. Ozanne, Owen J. Sansom
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P-Rex1 and Vav1 cooperate in the regulation of formyl-methionyl-leucyl-phenylalanine-dependent neutrophil responses
G protein-coupled receptor (GPCR) activation elicits neutrophil responses such as chemotaxis and reactive oxygen species (ROS) …
Campbell D. Lawson, Sarah Donald, Karen E. Anderson, Daniel T. Patton, Heidi C. E. Welch
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P-Rex2 regulates Purkinje cell dendrite morphology and motor coordination
The small GTPase Rac controls cell morphology, gene expression, and reactive oxygen species formation. Manipulations of Rac activity …
Sarah Donald, Trevor Humby, Ian Fyfe, Anne Segonds-Pichon, Simon A. Walker, Simon R. Andrews, W. John Coadwell, Piers Emson, Lawrence S. Wilkinson, Heidi C. E. Welch
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P-Rex1 Regulates Neutrophil Function
Rac GTPases regulate cytoskeletal structure, gene expression, and reactive oxygen species (ROS) production [1, 2]. Rac2-deficient …
Heidi CE Welch, Alison M. Condliffe, Laura J. Milne, G. John Ferguson, Kirsti Hill, Louise MC Webb, Klaus Okkenhaug, W. John Coadwell, Simon R. Andrews, Marcus Thelen, Gareth E. Jones, Phillip T. Hawkins, Len R. Stephens
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