Table 1

Overview about all histone modifications and proteins examined and their nuclear localization in vegetative and differentiating cells.


Vegetative cells
Differentiating cells

++ = high level
+ = moderate level
- = not detected
Micronuclei
Macronuclei
Micronuclei
Parental macronuclei
Macronuclear anlagen (a1 to early a2)
Macronuclear anlagen (a2to a3)
Macronuclear anlagen (e)

Histone acetylation







H3K9ac
-
++
-
+4
++
++
++
H3K14ac
-
++
-
+4
++
++
++
H3K36ac
-
-
-
-
-
++
+4
Histone methylation







H3K4me1
-
++
-
+4
-
++
++
H3K4me3
-
++
-
+4
-
++
++
H3K9me3
-
-
-
+5
-
++
+4
H3K27me1
-
-
- (+1)
-
-
++
+4
H3K27me3
++
-
++
-
-
++
+4
H3K36me3
+
-
+(-2)
-
-
+
+4
Histone phosphorylation







H3S28p
++
+
-
+4
++
++
++
Chromatin modifying proteins







E(z)/KMT6-like HMT
-
-
-
-
-
++
+4
Spdd1p
-
-
-
+5
-
++
+4
RNAi-related machinery







Piwi/mdp1
-
-
+3
++6
++
+4
+4

1transient accumulation during conjugation

2transient loss during conjugation

3transient accumulation early during conjugation

4signal intensity and frequency continuously decreasing

5modification occasionally observed as dispersed foci-like signals mostly not visible in stack projections

6resrtricted to conjugation and early exconjugant cells with no visible macronuclear anlagen

Postberg et al. Epigenetics & Chromatin 2008 1:3   doi:10.1186/1756-8935-1-3