Expression and characterization of the PEBP homolog genes from Drosophila.
The phosphatidylethanolamine binding proteins (PEBPs) family is evolutionarily conserved and involved in different physiological phenomena. PEBPs were found in many species from bacteria to mammals. Despite numerous studies, PEBPs' biological function and mode of action remain elusive. Based on sequence homology, seven PEBP genes were detected in the Drosophila genome. Only one of them, the odorant binding protein (OBP), has been characterized. To date nothing is known concerning the expression pattern and biological roles of the six other PEBP genes. By RT-PCR and Western blot analysis, we examined expression of the PEBPs in different tissues and embryos. The 6 PEBPs were differentially expressed. Only one, CG10298, is specific of only one tissue: the testis. Additionally, by comparing in wild type and male-sterile mutants we show that CG10298 is present only during spermatid differentiation. Furthermore, by comparing structural parameters of the six PEBP proteins with those of human PEBP-1, we have established that PEBP CG10298 is most closely related to human PEBP.
Rautureau
Gilles
G
Centre de Biophysique Moléculaire, UPR 4301 CNRS, Orléans, France.
Jouvensal
Laurence
L
Vovelle
Françoise
F
Schoentgen
Françoise
F
Locker
Daniel
D
Decoville
Martine
M
D000818:Animals; D029721:Drosophila Proteins / Q000235:genetics* / Q000378:metabolism; D004331:Drosophila melanogaster / Q000235:genetics* / Q000378:metabolism; D005260:Female; D020869:Gene Expression Profiling; D005786:Gene Expression Regulation; D008018:Life Cycle Stages / Q000235:genetics / Q000502:physiology; D008297:Male; D008969:Molecular Sequence Data; D049488:Phosphatidylethanolamine Binding Protein / Q000145:classification / Q000235:genetics* / Q000378:metabolism; D012313:RNA / Q000032:analysis; D017385:Sequence Homology; D013087:Spermatids / Q000378:metabolism; D013091:Spermatogenesis / Q000235:genetics / Q000502:physiology; D013737:Testis / Q000378:metabolism*; D014018:Tissue Distribution
C542152:CG10298 protein, Drosophila; D029721:Drosophila Proteins; D049488:Phosphatidylethanolamine Binding Protein; D012313:RNA