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A Mazen

Publications and source records attributed to A Mazen.

33 records · Page 2Linked to original sources
PubMed1975

Non-histone chromosomal proteins easily extractible from chick erythrocytes.

Those non-histone chromosomal proteins which are easily extractible from chick erythrocytes differ substantially from proteins similarly extracted from other tissues of various species. Although a protein P1 was isolated along with histone H1 by extraction of calf thymus chromatin with HC1O4, the same procedure did not extract this protein from chick erythrocyte chromatin of either normal or regenerating blood. Likewise , non-histone proteins extracted with 0.35 M NaCl from calf thymus differed from those of normal chick erythrocytes, which were qualitatively identical but quantitatively inferior to those of regenerating blood. The major protein of about 25 000 molecular weight, totally extracted with 0.35 M NaCl from calf thymus, was not found in chick erythrocyte chromatin, but rather another major protein of about 35 000 molecular weight was partially extracted from erythrocytes.

Amino Acids↗
PubMed1969

Variation quantitative de la fraction d'histone specifique aux erythrocytes, au cours du developpement du poulet.

Chromatography on carboxymethylcellulose of the trichloracetic extract "F(1)" of chicken erythrocytes nuclei, yields two histone fractions: F(1)-cF(1) the very lysine-rich histone and F(1)-cF(3), the fraction specific to erythrocytes.Aminoacid analysis and disc electrophorosis on extracts "F(1)" demonstrate that specific histone fraction F(1)-cF(3) occurs in smaller percentage in the early stages of chicken development; it increases from 6% (by weight of the total DNA) in 3 days old chicken to 16% in 21 days old chicken. But the percentage of F(1)-cF(1) fraction (8% by weight of total DNA) remains constant in the same conditions.

Journal Article↗