期刊
JOURNAL OF EUKARYOTIC MICROBIOLOGY
卷 60, 期 1, 页码 101-105出版社
WILEY-BLACKWELL
DOI: 10.1111/jeu.12009
关键词
MORN domain; parvulin; peptidyl-prolyl isomerase; Pin1; PPIase; Trypanosoma cruzi
类别
资金
- Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET, Argentina)
- Agencia Nacional de Promocion Cientifica y Tecnologica (ANPCyT, Argentina)
- Prosul-CNPq
- FAPESP (Brazil)
Pin1-type peptidyl-prolyl cis/trans isomerases (PPIases) isomerise the peptide bond of specific phosphorylated (Ser/Thr)-Pro residues, regulating various cellular events. Previously, we reported a Pin1-type PPIase in Trypanosoma cruzi, but little is known about its function and subcellular localization. Immunofluorescence analysis revealed that in contrast with Pin1-like proteins from diverse organisms, TcPin1 mainly localized in the cytoplasm and was excluded from the nuclei. In addition, RNAi-mediated downregulation of TbPin1 in Trypanosoma brucei did not abolish cell proliferation. Using yeast two-hybrid assay, we identified a MORN domain-containing protein as putative Pin1-binding partners. These data suggest that Pin1-mediated signaling mechanism plays a different role in protozoan parasites.
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