Citation: W. Bode et al., ASTACINS, SERRALYSINS, SNAKE-VENOM AND MATRIX METALLOPROTEINASES EXHIBIT IDENTICAL ZINC-BINDING ENVIRONMENTS (HEXXHXXGXXH AND MET-TURN) ANDTOPOLOGIES AND SHOULD BE GROUPED INTO A COMMON FAMILY, THE METZINCINS, FEBS letters, 331(1-2), 1993, pp. 134-140