Cloning of Schistosoma japonicum 14-3-3 epsilon (Sj14-3-3 epsilon), a new member of the 14-3-3 family of proteins from schistosomes.
A new member of the 14-3-3 protein family from Schistosoma japonicum has been identified. Phylogenetic analysis showed that this member belongs to the epsilon subfamily of the 14-3-3 proteins, and it is therefore named Sj14-3-3 epsilon. Consistent with the findings for the previously reported S. japonicum 14-3-3 protein (Sj14-3-3), Southern analysis suggested the presence of more than one gene, and/or introns or allelic polymorphism in this epsilon isoform. By RT-PCR, Sj14-3-3 epsilon was shown to be stage-specifically transcribed, being abundant in adults, present in sporocysts but absent in cercariae. Furthermore, mRNA of the epsilon isoform seemed to be much less abundant in the sporocyst stage, compared with Sj14-3-3. This suggests varying requirements of the different 14-3-3 isoforms at different stages of the life cycle.
Zhang
Y
Y
Immunology Unit, Department of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK. yaobi.zhang@lshtm.ac.uk
Bickle
Q D
QD
Taylor
M G
MG
D048948:14-3-3 Proteins; D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D003001:Cloning, Molecular; D008969:Molecular Sequence Data; D008970:Molecular Weight; D010802:Phylogeny; D016133:Polymerase Chain Reaction / Q000662:veterinary; D020033:Protein Isoforms; D015800:Protozoan Proteins / Q000737:chemistry / Q000235:genetics*; D012313:RNA / Q000737:chemistry / Q000302:isolation & purification; D012549:Schistosoma japonicum / Q000737:chemistry / Q000145:classification / Q000235:genetics*; D016415:Sequence Alignment; D017422:Sequence Analysis, DNA; D017386:Sequence Homology, Amino Acid; D014446:Tyrosine 3-Monooxygenase / Q000737:chemistry / Q000235:genetics*
D048948:14-3-3 Proteins; D020033:Protein Isoforms; D015800:Protozoan Proteins; D012313:RNA; D014446:Tyrosine 3-Monooxygenase