Blood, 1958, Vol. 13, No. 3, pp. 239-244.
© 1958 American Society of Hematology, Inc.
Effect of Indole Compounds on Vitamin B12 Utilization
JERRY DREXLER 1
1 Department of Clinical Pathology, The Cleveland Clinic Foundation, and The
Frank E. Bunts Educational Institute, Cleveland, Ohio.
Indole and indoleacetic acid are shown to inhibit the growth of a vitamin
B12 dependent microorganism, a mutant strain of Escherichia coli. It is suggested that the mechanism of that inhibition may be a competitive inhibition
of some enzymatic system necessary for the utilization of vitamin B12.
Submitted on July 11, 1957
Accepted on September 19, 1957