Format:
Online-Ressource
ISSN:
1521-4141
Content:
Abstract: The activities of two forms (8.2 and 6.2 S) of DNA ligase have been studied in chicken thymocytes at different stages of development (16 and 18 days of incubation, hatching and one month after birth). Thymocytes have been sorted out on the basis of size and T antigenicity (immunofluorescence) with the activated cell sorter. Three kinds of cells can be distinguished: (a) large, antigenically negative cells of 16 days of incubation, expressing only the “heavy” (8.2 S) form of enzyme. The activity of this form decreases during development and is very low after birth; (b) large, antigenically positive cells without DNA ligase activity and (c) small, antigenically positive cells, expressing the “light” (6.2 S) enzyme. This form of enzyme appears only from 18 days of incubation onwards. These results allow us to consider the 6.2 S DNA ligase activity as an additional marker (with cell reduction and T antigenicity) for thymocyte maturation.
In:
volume:11
In:
number:7
In:
year:2005
In:
pages:593-596
In:
extent:4
In:
European journal of immunology, Weinheim : Wiley-VCH, 1971-, 11, Heft 7 (2005), 593-596 (gesamt 4), 1521-4141
Language:
English
DOI:
10.1002/eji.1830110713
URN:
urn:nbn:de:101:1-2024040503425956294176
URL:
https://doi.org/10.1002/eji.1830110713
URL:
https://nbn-resolving.org/urn:nbn:de:101:1-2024040503425956294176
URL:
https://d-nb.info/1325300217/34
URL:
https://doi.org/10.1002/eji.1830110713