Proteomic analysis of secretory products from the model gastrointestinal nematode Heligmosomoides polygyrus reveals dominance of venom allergen-like (VAL) proteins

James P Hewitson, Yvonne Harcus, Janice Murray, Maaike van Agtmaal, Kara J Filbey, John R Grainger, Stephen Bridgett, Mark L Blaxter, Peter D Ashton, David A Ashford, Rachel S Curwen, R Alan Wilson, Adam A Dowle, Rick M Maizels