Thermostable cellulase enzyme systems comprising at least one each of a thermostable endoglucanase, an exo-processive-endoglucanase, and a .beta.-glucosidase carry out the complete, coordinated hydrolysis of crystalline cellulose to monomeric glucose.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH
 This invention was made with Government support under Grant No. DE-FG36-06GO16107, awarded by the U.S. Department of Energy. The Government may have certain rights in this invention.