Search

Search Results

• Book

  Manual of Clinical Dietetics. 2nd ed.

  researched and approved by Chicago Dietetic Association and South Suburban Dietetic Association of Cook and Will Counties.

  Print Access Request

  Location

  Version

  Call Number

  Items

  Books: General Collection (Downstairs)

  1981-

  RM216 .M29 1981

  1
  Get Shareable Link

  View Details
• Article

  Properties of tyrosine-inhibitable 3-deoxy-d-arabinoheptulosonic acid-7-phosphate synthase from Salmonella.

  Hu CY, Sprinson DB.

  J Bacteriol. 1977 Jan;129(1):177-83.

  Tyrosine-inhibitable 3-deoxy-D-arabinoheptulosonic acid-7-phosphate (DAHP) synthase was purified to homogeneity without significant loss of sensitivity to inhibition by tyrosine from an operator-constitutive strain (tyrOc) of Salmonella. The enzyme had an apparent molecular weight of 76,000 by gel filtration and a subunit molecular weight of 40,000 by sodium dodecyl sulfate-gel electrophoresis and by reaction with dimethyl suberimidate. It had an isoelectric point of 4.68. Inhibition by L-tyrosine showed a Hill coefficient of 1.8 at pH 7.0, suggesting cooperative interaction between tyrosine-binding sites, and was competitive with phosphoenol pyruvate and noncompetitive with erythrose-4-phosphate.

  Digital Access Access Options
  Get Shareable Link

  PubMed
• Book

  Principles of Ethics,

  by James H. Dunham.

  Print 1929
  Get Shareable Link

  View Details