Title
The Gene Encoding Topoisomerase-Ii From Plasmodium-Falciparum
Abstract
The gene for topoisomerase II has been isolated from genomic libraries of strain K1 of the human malarial parasite, Plasmodium falciparum. The sequence reveals an open reading frame of 4194 nucleotides which predicts a polypeptide of 1398 amino acids. There are apparently no introns. The sequence is present as a single copy which has an identity of 47.4% and a similarity of 65.4% with its human homologue. Sequences conserved in topoisomerase II from other species are present in Pftopoisomerase II but in addition it has two adjacent asparagine-rich insertions which are unique to it. We have also detected asparagine-rich regions in the gene for PfDNA polymerase alpha. The gene for Pftopoisomerase II has been localised to chromosome 14 and northern analysis reveals a transcript of 5.8kb. Two independent antisera raised;in mice against glutathione-S-transferase fusion proteins containing the amino terminal portion of the malarial protein detect a weak band on western blots at about 160kDa, the expected size of the protein. Use of the same antisera for immunofluorescence analysis suggests that the protein is present at all stages of intraerythrocytic growth of the parasite.
Year
DOI
Venue
1994
10.1093/nar/22.13.2547
NUCLEIC ACIDS RESEARCH
Field
DocType
Volume
Sequence alignment,Gene,Fusion protein,Biology,Nucleic acid sequence,Gene expression,Open reading frame,Homology (biology),Genetics,Molecular biology,Peptide sequence
Journal
22
Issue
ISSN
Citations 
13
0305-1048
1
PageRank 
References 
Authors
0.36
0
7
Name
Order
Citations
PageRank
S Cheesman110.36
S McAleese210.36
M Goman310.36
D Johnson410.36
P Horrocks510.36
R G Ridley610.36
B J Kilbey710.36