Interaction of nucleosome core DNA with transition proteins 1 and 3 from boar late spermatid nuclei.

Interaction of nucleosome core DNA with transition proteins 1 and 3 from boar late spermatid nuclei. Research Abstract Details 

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Interaction of nucleosome core DNA with transition proteins 1 and 3 from boar late spermatid nuclei. Abstract Text:

K Akama,H Sato,M Furihata-Yamauchi,Y Komatsu,T Tobita,M Nakano,

The DNA binding properties of boar transition protein 1 and 3 (TP1 and TP3) were studied by means of physicochemical techniques. The ultraviolet difference absorption spectra upon TP1 and TP3 binding to rat liver nucleosome core DNA (double-stranded DNA) showed TP1- and TP3-induced hyperchromicity at 260 nm, which is suggestive of local melting of DNA. CD measurements of TP1-DNA and TP3-DNA complexes indicated that the binding of TP1 and TP3 induced different conformational changes in DNA, probably including local melting of DNA. Thermal melting studies on the binding of TP1 and TP3 to DNA showed that although at 1 mM NaCl TP1 and TP3 caused slight stabilization of the DNA against thermal melting, destabilization of the DNA was observed at 50 mM NaCl. From the results of quenching of the tyrosine fluorescence of TP1 and the tryptophan fluorescence of TP3 upon their binding to double-stranded and single-stranded boar liver nucleosome core DNA at 50 mM NaCl, the apparent association constants for the binding of TP1 to double- and single-stranded DNA were calculated to be 8.0 x 10(4) and 1.3 x 10(5) M-1, respectively, and those for the binding of TP3 to double- and single-stranded DNA to be 7.1 x 10(4) and 1.8 x 10(5) M-1, respectively. These results suggest that TP1 and TP3, having higher affinity for single-stranded DNA, induce local destabilization of DNA, probably through the stacking of Tyr32 and Trp18 with nucleic acid bases, respectively.

Interaction of nucleosome core DNA with transition proteins 1 and 3 from boar late spermatid nuclei. Publishing Authors By Initials

K Akama,H Sato,M Furihata-Yamauchi,Y Komatsu,T Tobita,M Nakano,

For similar animals: chordata: vertebrates: mammals: artiodactyla: swine research abstracts see: animals: chordata: vertebrates: mammals: artiodactyla: swine research

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Interaction of nucleosome core DNA with transition proteins 1 and 3 from boar late spermatid nuclei. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of biochemistry

VOLUME: 119

Page Numbers: 448-55

Journal Abbreviation: J. Biochem.

ISSN: 0021-924X

DAY: 19

MONTH: Mar

YEAR: 1996

Interaction of nucleosome core DNA with transition proteins 1 and 3 from boar late spermatid nuclei. Information

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LANGUAGE: eng

NlmUniqueID: 376600

Interaction of nucleosome core DNA with transition proteins 1 and 3 from boar late spermatid nuclei. Keywords Mesh Terms:

KEYWORDS: Swine

MESH TERMS: metabolism

Chemical & Substance for Abstract: Interaction of nucleosome core DNA with transition proteins 1 and 3 from boar late spermatid nuclei. Information

Substance Name: DNA

Registry Number: 9007-49-2

Grant and Affiliation Information for Interaction of nucleosome core DNA with transition proteins 1 and 3 from boar late spermatid nuclei.

AFFILIATION: Department of Chemistry, Faculty of Science, Chiba University.

Country: JAPAN

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MEDLINETA: J Biochem

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