Regulation of Nuclear Import by Phosphorylation Adjacent to Nuclear Localization Signals [PDF]
Many important regulatory proteins, including cell cycle regulators and transcription factors, contain a phosphorylation site within or adjacent to a classic nuclear localization signal (NLS) sequence. Previous studies show that the nuclear localization of these cargoes can be regulated by phosphorylation at these sites.
Michelle T, Harreman +5 more
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Identification of a novel nuclear localization signal in Sam68 [PDF]
Sam68, a nuclear RNA binding protein, binds to Src and is phosphorylated at tyrosine residues in an M‐phase specific manner. Here we identified a stretch of 24 amino acid residues in the COOH‐terminal portion of Sam68 which function as a nuclear localization signal. This signal sequence bears no apparent homology to any other known nuclear localization
Ishidate, Takao +5 more
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A nuclear localization signal binding protein in the nucleolus. [PDF]
We used functional wild-type and mutant synthetic nuclear localization signal peptides of SV-40 T antigen cross-linked to human serum albumin (peptide conjugates) to assay their binding to proteins of rat liver nuclei on Western blots. Proteins of 140 and 55 kD (p140 and p55) were exclusively recognized by wild-type peptide conjugates.
U T, Meier, G, Blobel
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Identification of a classical bipartite nuclear localization signal in the Drosophila TEA/ATTS protein scalloped. [PDF]
Drosophila melanogaster wing development has been shown to rely on the activity of a complex of two proteins, Scalloped (Sd) and Vestigial (Vg). Within this complex, Sd is known to provide DNA binding though its TEA/ATTS domain, while Vg modulates this ...
Adam C Magico, John B Bell
doaj +1 more source
Identification and functional dissection of localization signals within ataxin-3
Spinocerebellar ataxia type 3 (SCA3) or Machado–Joseph disease (MJD) belongs to a group of autosomal dominant neurodegenerative diseases, which are caused by the expansion of a polyglutamine repeat in the affected protein, in this case ataxin-3. Ataxin-3
Paul Michel Aloyse Antony +6 more
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Nuclear translocation of large proteins is mediated through karyopherins, carrier proteins recognizing specific motifs of cargo proteins, known as nuclear localization signals (NLS). However, only few NLS signals have been reported until now.
Athanasios A. Panagiotopoulos +10 more
doaj +1 more source
Importin α3/Qip1 is involved in multiplication of mutant influenza virus with alanine mutation at amino acid 9 independently of nuclear transport function. [PDF]
The nucleoprotein (NP) of influenza A virus is transported into the nucleus via the classical importin α/β pathway, and proceeds via nuclear localization signals (NLSs) recognized by importin α molecules.
Yutaka Sasaki +5 more
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Identification of cryptic nuclear localization signals in the prion protein
Abnormal transport of C-terminally truncated prion protein (PrP) to the nucleus has been reported in cell models of familial prion disorders associated with a stop codon mutation at residues 145 or 160 of the PrP.
Yaping Gu +5 more
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Conserved motifs in nuclear genes encoding predicted mitochondrial proteins in Trypanosoma cruzi.
Trypanosoma cruzi, the protozoan parasite that causes Chagas' disease, exhibits peculiar biological features. Among them, the presence of a unique mitochondrion is remarkable. Even though the mitochondrial DNA constitutes up to 25% of total cellular DNA,
Lorena Becco +2 more
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Nuclear export and import of human hepatitis B virus capsid protein and particles. [PDF]
It remains unclear what determines the subcellular localization of hepatitis B virus (HBV) core protein (HBc) and particles. To address this fundamental issue, we have identified four distinct HBc localization signals in the arginine rich domain (ARD) of
Hung-Cheng Li +7 more
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