QUICK SEARCH:   [advanced] Author: Keyword(s):
Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents

Help viewing high resolution images Return to article

Fig. 3. Localization of antibodies to the chromatin proteins in the telomeric regions of polytene chromosomes 2R (A-C,I,K,L), X (DH,J,M,O) and 3L (N). Capping proteins: (A) SUUR, (B) SU(VAR)3-7 and (C) HP2 localize to the chromosome tip. (D) H4AcK12 is not detected in telomeres. HeT-A/TAHRE/TART repeat recruits typical euchromatic proteins: (E) JIL-1, (F) Z4, (G) H3Me3K4 and Z4, both of which co-localize within this region. No productive transcription is detected within the HeT-A/TAHRE/TART region, since no signal for phospho-serine5 PolIIo is seen (H). Upon simultaneous immunodetection of cap- and HeT-A/TAHRE/TART-array-specific proteins, no overlap of the two signals is observed: HP2 and Z4 (I), HP1 and JIL-1 (J), HP1 and H3Me3K4 (K), HP1 and H3Me3K9 (L,M). (N) H3Me3K9 is detected within the HeT-A/TAHRE/TART region of Su(var)205⁰³/Su(var)205⁰⁵ larvae. (O) PC protein, recruited to the TAS repeats, and Z4 do not merge perfectly within the region of TAS repeats. Dashed lines, TAS repeats; solid lines, marker regions.

Return to article