RRC ID 28942
Author Knecht DA, Cohen SM, Loomis WF, Lodish HF.
Title Developmental regulation of Dictyostelium discoideum actin gene fusions carried on low-copy and high-copy transformation vectors.
Journal Mol Cell Biol
Abstract The Dictyostelium discoideum genome contains an estimated 17 to 20 actin genes. We report the identification of a new member of this multigene family, actin 15, and its complete nucleotide sequence and transcription initiation sites. We constructed transformation vectors carrying either the actin 15 promoter fused to the neomycin phosphotransferase gene from transposon Tn903 or the actin 6 promoter fused to the neomycin phosphotransferase gene from Tn5. Cells transformed with the actin 15 vector carried less than five copies of vector DNA, while cells transformed with the actin 6 vector carried more than 200 copies. In both cases, the vector appeared to be integrated into the chromosome as a tandem array. Gene fusion RNAs transcribed from the actin 15 and actin 6 vectors were regulated like endogenous actin genes during D. discoideum development. DNA sequences required for temporal and cell type-specific regulation of these genes were contained within 2.8 kilobases of 5' noncoding DNA for actin 15 and 0.7 kilobases of 5' noncoding DNA for actin 6.
Volume 6(11)
Pages 3973-83
Published 1986-11-1
DOI 10.1128/mcb.6.11.3973-3983.1986
PMID 3025622
PMC PMC367161
MeSH Actins / genetics* Amino Acid Sequence Base Sequence Cloning, Molecular DNA Restriction Enzymes Dictyostelium / genetics* Dictyostelium / growth & development Genes* Genes, Fungal* Genetic Vectors* Nucleic Acid Hybridization
IF 3.611
Times Cited 205
WOS Category BIOCHEMISTRY & MOLECULAR BIOLOGY CELL BIOLOGY
Resource
Cellular slime molds S00148 S00362