In:
Science, American Association for the Advancement of Science (AAAS), Vol. 291, No. 5508 ( 2001-02-23), p. 1547-1550
Abstract:
Centrosomes were microsurgically removed from BSC-1 African green monkey kidney cells before the completion of S phase. Karyoplasts (acentrosomal cells) entered and completed mitosis. However, postmitotic karyoplasts arrested before S phase, whereas adjacent control cells divided repeatedly. Postmitotic karyoplasts assembled a microtubule-organizing center containing γ-tubulin and pericentrin, but did not regenerate centrioles. These observations reveal the existence of an activity associated with core centrosomal structures—distinct from elements of the microtubule-organizing center—that is required for the somatic cell cycle to progress through G 1 into S phase. Once the cell is in S phase, these core structures are not needed for the G 2 -M phase transition.
Type of Medium:
Online Resource
ISSN:
0036-8075
,
1095-9203
DOI:
10.1126/science.1056866
Language:
English
Publisher:
American Association for the Advancement of Science (AAAS)
Publication Date:
2001
detail.hit.zdb_id:
128410-1
detail.hit.zdb_id:
2066996-3
SSG:
11
Permalink