Cytosolic glyceraldehyde-3-P dehydrogenase and the B subunit of the chloroplast enzyme are present in the pea leaf nucleus

Summary. Immunolocalization experiments indicate that both the subunit B of the NADP-linked chloroplastic glyceraldehyde-3-phosphate dehydrogenase (EC 1.2.1.13) and the NAD-linked cytosolic enzyme (EC 1.2.1.12) are present in the pea (Pisum sativum L.) leaf nucleus. Subunit A of the NADP-linked enzyme appears to be restricted to the chloroplast.Correspondence and reprints: Department of Biological Sciences m/c 066, University of Illinois-Chicago, 845 West Taylor, Chicago, IL 60607-7060, U.S.A. E-mail: louise@uic.edu