1990
  1. [YEAR:5-7-1990]Cooper,J.B., Khan,G., Taylor,G., Tickle,I.J. and Blundell,T.L.
    X-ray analyses of aspartic proteinases. II. Three-dimensional structure of the hexagonal crystal form of porcine pepsin at 2.3 A resolution
    J Mol Biol214, 199-222. PubMed  Europe PubMed DOI  S