Sequence requirements for nucleolar localization of human T cell leukemia virus type I pX protein, which regulates viral RNA processing
- PMID: 3048703
- DOI: 10.1016/0092-8674(88)90043-8
Sequence requirements for nucleolar localization of human T cell leukemia virus type I pX protein, which regulates viral RNA processing
Abstract
The posttranscriptional regulator (p27x-III) of human T cell leukemia virus type I (HTLV-I) is located predominantly in the cell nucleolus. A highly basic amino-terminal sequence (NH2-Met-Pro-Lys-Thr-Arg-Arg-Arg-Pro-Arg-Arg-Ser-Gln-Arg-Lys-Arg-Pro-Pro -Thr- Pro) in this protein, when fused to the amino termini of beta-galactosidase and p40x of HTLV-I, acts as an autonomous signal capable of directing the hybrid proteins to the cell nucleolus.
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