Drosophila Kc cells were grown in BPYE medium (Shields and Sang M3 Insect medium, Sigma, supplemented with 25% w/v bactopeptone, 20% w/v yeast extract, 5% heat inactivated fetal calf serum, all Gibco) at 23°C. Full length HP1 was cloned into pNDamMyc (van Steensel, B. & Henikoff, S. Identification of in vivo DNA targets of chromatin proteins using tethered dam methyltransferase. Nat Biotechnol 18, 424-8, 2000) and plasmid was transfected into Kc cells as described (Henikoff, S., Ahmad, K., Platero, J.S. & van Steensel, B. Heterochromatic deposition of centromeric histone H3-like proteins. Proc Natl Acad Sci U S A 97, 716-21, 2000).
Extracted molecule
genomic DNA
Extraction protocol
Sample extraction was performed as described (Greil, F. et al. Distinct HP1 and Su(var)3-9 complexes bind to sets of developmentally coexpressed genes depending on chromosomal location. Genes Dev. 17, 2825-38, 2003)
Label
Cy5
Label protocol
Samples were labeled by NimbleGen Systems, Reykjavik, Iceland
Channel 2
Source name
Embryonic Drosophila cells, Kc167 cells, expressing Dam
Drosophila Kc cells were grown in BPYE medium (Shields and Sang M3 Insect medium, Sigma, supplemented with 25% w/v bactopeptone, 20% w/v yeast extract, 5% heat inactivated fetal calf serum, all Gibco) at 23°C. pNDamMyc (van Steensel, B. & Henikoff, S. Identification of in vivo DNA targets of chromatin proteins using tethered dam methyltransferase. Nat Biotechnol 18, 424-8, 2000) plasmid was transfected into Kc cells as described (Henikoff, S., Ahmad, K., Platero, J.S. & van Steensel, B. Heterochromatic deposition of centromeric histone H3-like proteins. Proc Natl Acad Sci U S A 97, 716-21, 2000).
Extracted molecule
genomic DNA
Extraction protocol
Sample extraction was performed as described (Greil, F. et al. Distinct HP1 and Su(var)3-9 complexes bind to sets of developmentally coexpressed genes depending on chromosomal location. Genes Dev 17, 2825-38, 2003)
Label
Cy3
Label protocol
Samples were labeled by NimbleGen Systems, Reykjavik, Iceland
Hybridization protocol
Samples were hybridized by NimbleGen Systems, Reykjavik, Iceland
Scan protocol
Arrays were scanned and analyzed by NimbleGen Systems, Reykjavik, Iceland
Description
Embryonic Drosophila cells, Kc167 cells
Data processing
The log2-ratio of Dam-Fusion signal over Dam-only signal was calculated and the median over the the entire array was subtracted from the data
