Literature DB >> 3368451

ATP-dependent association of nuclear proteins with isolated rat liver nuclei.

N Imamoto-Sonobe1, Y Yoneda, R Iwamoto, H Sugawa, T Uchida.   

Abstract

In vitro association of Xenopus nucleoplasmin and mammalian nonhistone chromosomal high mobility group 1 (HMG1) protein with nuclei isolated from rat liver was examined. Efficient association of nuclear proteins with isolated nuclei requires ATP, HCO3-, and Ca2+. Association occurred at 33 degrees C but not at 4 degrees C. ATP could be replaced by adenosine 5'-[alpha,beta-methylene]triphosphate (pp[CH2]pA), a nonhydrolyzable ATP analog. pp[CH2]pA associated with nuclei at 33 degrees C and nucleoplasmin and HMG1 rapidly associated with the pp[CH2]pA-bound nuclei at 4 degrees C. Competition studies showed that these associations at both 33 degrees C and 4 degrees C were specific. More than 80% of the bindings of nuclear proteins to the nuclear surface were blocked by wheat germ agglutinin.

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Year:  1988        PMID： 3368451      PMCID： PMC280224          DOI： 10.1073/pnas.85.10.3426

Source DB:  PubMed          Journal:  Proc Natl Acad Sci U S A        ISSN： 0027-8424            Impact factor:   11.205


  29 in total

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Journal:  Biochemistry       Date:  1974-07-02       Impact factor: 3.162

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Journal:  Annu Rev Biochem       Date:  1981       Impact factor: 23.643

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Authors:  A D Mills; R A Laskey; P Black; E M De Robertis
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Journal:  Cell       Date:  1980-09       Impact factor: 41.582
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  11 in total

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8.  Nuclear protein import in permeabilized mammalian cells requires soluble cytoplasmic factors.

Authors:  S A Adam; R S Marr; L Gerace
Journal:  J Cell Biol       Date:  1990-09       Impact factor: 10.539

9.  Antibodies against 70-kD heat shock cognate protein inhibit mediated nuclear import of karyophilic proteins.

Authors:  N Imamoto; Y Matsuoka; T Kurihara; K Kohno; M Miyagi; F Sakiyama; Y Okada; S Tsunasawa; Y Yoneda
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10.  An N-ethylmaleimide-sensitive cytosolic factor necessary for nuclear protein import: requirement in signal-mediated binding to the nuclear pore.

Authors:  D D Newmeyer; D J Forbes
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