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Coimmunoprecipitation of PPR5 with CAF1 and RNC1 from chloroplast extract. Chloroplast stroma was incubated with the affinity-purified antiserum indicated above each lane. Immunoprecipitates were analyzed on immunoblots to detect PPR5 (top panel), CAF1 (middle panel), or RNC1 (bottom panel). Antiserum to OEC16 was used as a negative control.
