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Geminivirus AL3 protein Geminiviruses are small, ssDNA-containing plant viruses. Geminiviruses contain three ORFs (designated AL1, AL2, and AL3) that overlap and are specified by multiple polycistronic mRNAs. The AL3 protein comprises approximately 0.05% of the cellular proteins and is present in the soluble and organelle fractions. AL3 may form oligomers. Immunoprecipitation of AL3 in a baculovirus expression system extracts expressing both AL1 pfam00799 and AL3 showed that the two proteins also complex with each other. The AL3 protein is involved in viral replication.
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