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. Author manuscript; available in PMC: 2009 Aug 1.

Published in final edited form as: Exp Hematol. 2008 May 20;36(8):977–987. doi: 10.1016/j.exphem.2008.03.003

TABLE II.

CENTROMERIC HETEROCHROMATIN: "SPOT" SIZE AND LOCATION

	+/+		+/ic		ic/ic
	0	ATRA	0	ATRA	0	ATRA
SIZE^§
SMALL <0.75 µm	75.5	83.1	72.6	73.5	28.4	19.4
MEDIUM 0.75–1.5 µm	22.8	16.1	25.5	25.0	45.5	48.3
LARGE >1.5 µm	1.6	0.8	1.8	1.5	26.2	32.1
LOCATION
INTERIOR	28.0	15.8	34.1	32.3	56.9	67.7
Touching Nuclear Envelope	72.0	84.2	65.9	67.7	43.1	32.3

Spots/Nucleus^¥	5.0	5.4	6.0	6.5	3.7	4.3
N (total spots counted)	105	1071	1188	1285	737	851

^§

% of total counted

^¥

Average number of centromeric "spots" per nucleus in a 1 µm thick confocal slice.