PT  - JOURNAL ARTICLE
AU  - J. Fielding
AU  - Shirley A. Edwards
AU  - Richard Ryall
TI  - Effect of sulphydryl inhibition on the uptake of transferrin-bound iron by reticulocytes
AID  - 10.1136/jcp.22.6.677
DP  - 1969 Nov 01
TA  - Journal of Clinical Pathology
PG  - 677--679
VI  - 22
IP  - 6
4099  - http://jcp.bmj.com/content/22/6/677.short
4100  - http://jcp.bmj.com/content/22/6/677.full
SO  - J Clin Pathol1969 Nov 01; 22
AB  - Iron transferrin, the highly stable carrier of plasma iron, may be dissociated, under physiological conditions, by sodium thioglycollate, a reaction which involves the formation of iron thioglycollate complexes. This suggested that sulphydryl radicals, which are the active groups in thioglycollate and related compounds, may play a part in the uptake of iron by immature red cells from iron transferrin. If this were so, it could be predicted that the sulphydryl inhibitor, p-hydroxymercuribenzoate, would depress the uptake of iron by reticulocytes. It is demonstrated here that inhibition of uptake of transferrin-bound iron by reticulocytes, which have been exposed to micromolar concentration of p-hydroxymercuribenzoate, is virtually complete. It is suggested that sulphydryl-containing compounds are intimately involved in the process of iron uptake by immature red cells.