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XB-ART-32189
Nucleic Acids Res 1977 Aug 01;48:2855-70.
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Purification of a DNA-binding protein from Xenopus laevis unfertilized eggs.

Carrara G , Gattoni S , Mercanti D , Tocchini-Valentini GP .


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A DNA-binding protein from Xenopus laevis unfertilized eggs has been purified to apparent homogeneity. It is a heat stable, lysine-rich protein and has a molecular weight corresponding to 8,200 daltons, measured by sodium dodecyl sulphate gel electrophoresis. The protein, which is active in a monomeric form, stimulates DNA polymerase alpha, and binds to single and double stranded DNA. One egg contains about 4 x 10(12) molecules (minimum estimate) of the protein; since we calculate that 4 x 10(8) molecules are sufficient to cover the entire genome (haploid complement), there is much more protein than is needed to cover chromosomal DNA.

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Species referenced: Xenopus laevis
Genes referenced: pola1

References [+] :
Adamson, Histone synthesis in early amphibian development: histone and DNA syntheses are not co-ordinated. 1974, Pubmed, Xenbase