Figure 6. SRA domains of SUVH9 and SUVH2 bind to methylated CHH and CG sequences, respectively.
A. Mobility shift assays using either GST-SUVH2-SRA (SUVH2) or GST-SUVH9-SRA (SUVH9) and either unmethylated CG oligonucleotide (uCG), methylated CG (mCG), methylated CHG (mCHG) or methylated CHH (mCHH) as probe. B. Upper panel: Quantitative RT-PCR of the SDC gene relative to ACTIN was measured in suvh9 suvh2 kyp lines containing the following stable transgenes: myc-tagged SUVH9 (SUVH9) or myc-tagged SUVH9-SRA mutant (S252F; SUVH9SRA). Lower panel: Western blot of transgenic plant extracts probed with myc antibody. C. Upper panel: Complementation of suvh2 was tested by MEA-ISR Southern blot using MspI digested DNA isolated from suvh2 lines containing the following stable transgenes: HA-tagged SUVH2 or HA-tagged SUVH2-SRA mutant (E262K; SUVH2SRA). Lower Panel: Western blot of immunoprecipitated protein from suvh2 transgenic plants using HA antibody as probe.
