GENETICS. For the article “Hematopoietic-specific activators establish an overlapping pattern of histone acetylation and methylation within a mammalian chromatin domain,” by Carol M. Kiekhaefer, Jeffrey A. Grass, Kirby D. Johnson, Meghan E. Boyer, and Emery H. Bresnick, which appeared in number 22, October 29, 2002, of Proc. Natl. Acad. Sci. USA (99, 14309–14314; First Published October 11, 2002; 10.1073/pnas.212389499), in line 13 of the Abstract, the term H3-meK4 appeared incorrectly as H3-mek4, due to a printer's error. In addition, Fig. 3 should have appeared in color. The color version of Fig. 3 and its legend appear to the right.
Fig 3.
NF-E2-dependent H3-meK4 and H3 and H4 acetylation patterns of the endogenous murine β-globin locus. Cells were incubated for 4 days with 1.5% DMSO. (A) H3-meK4 pattern of the murine β-globin locus in DMSO-induced MEL, CB3, CB3-6, and CB3-9. The relative level of H3-meK4 was determined quantitatively and plotted as a function of the position within the locus. (B and C) H3 and H4 acetylation patterns of the β-globin locus in DMSO-induced MEL, CB3, CB3-6, and CB3-9 cells. The relative levels of H3 and H4 acetylation were determined quantitatively and plotted as a function of the position within the locus. Number of independent ChIP samples analyzed: MEL, n = 5; CB3, n = 5; CB3-6, n = 3; and CB3-9, n = 2 (IVR-3, IVR-5, βmajor promoter, IVR-6, and IVR-16); and n = 3 (βmajor 3′ and βminor promoter).