Functional Identification of a Nuclear Localization Signal of MYB2 Protein in Giardia lamblia
The Korean Journal of Parasitology
; : 675-679, 2020.
Article
in En
| WPRIM
| ID: wpr-903843
Responsible library:
WPRO
ABSTRACT
MYB2 protein was identified as a transcription factor that showed encystation-induced expression in Giardia lamblia. Although nuclear import is essential for the functioning of a transcription factor, an evident nuclear localization signal (NLS) of G. lamblia MYB2 (GlMYB2) has not been defined. Based on putative GlMYB2 NLSs predicted by 2 programs, a series of plasmids expressing hemagglutinin (HA)-tagged GlMYB2 from the promoter of G. lamblia glutamate dehydrogenase were constructed and transfected into Giardia trophozoites. Immunofluorescence assays using anti-HA antibodies indicated that GlMYB2 amino acid sequence #507–#530 was required for the nuclear localization of GlMYB2, and this sequence was named as NLSGlMYB2. We further verified this finding by demonstrating the nuclear location of a protein obtained by the fusion of NLSGlMYB2 and G. lamblia glyceraldehyde 3-phosphate dehydrogenase, a non-nuclear protein. Our data on GlMYB2 will expand our understanding on NLSs functioning in G. lamblia.
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WPRIM
Type of study:
Diagnostic_studies
/
Prognostic_studies
Language:
En
Journal:
The Korean Journal of Parasitology
Year:
2020
Type:
Article