1.
Plant Mol Biol
; 17(1): 127-30, 1991 Jul.
Article
in English
| MEDLINE
| ID: mdl-1868212
Subject(s)
Anthocyanins/genetics , Genes, Regulator , Plant Proteins/genetics , Transcription Factors , Zea mays/genetics , Amino Acid Sequence , Base Sequence , Basic Helix-Loop-Helix Transcription Factors , Cloning, Molecular , Molecular Sequence Data , RNA, Messenger/genetics , Sequence Alignment
2.
Mol Cell Endocrinol
; 53(3): 221-6, 1987 Oct.
Article
in English
| MEDLINE
| ID: mdl-2822514
ABSTRACT
The action of luteinizing hormone on topoisomerase I activity from rat Leydig cells was studied. Stimulation of the enzyme was observed after long-term (24 and 48 h) gonadotrophin treatment in in vivo experiments. No change could be detected for shorter times than 12 h using two different experimental approaches. Topoisomerase I was stimulated by cAMP in a whole cell extract in a phosphorylation-dependent manner. These results suggest that topoisomerase I could be a target for nuclear events induced by peptide hormone action.