Table 1.

List of Paulinella chromatophora proteins that can be involved in protein import into its photosynthetic organelles

Accession number	Description	Putative role in protein import
YP_002049046	homolog to Hsp70 (DnaK), molecular chaperone	passage of proteins through the intermembrane space
YP_002048762	homolog to bacterial DegP, serine endoprotease	passage of proteins through the intermembrane space
YP_002048801	homolog to bacterial FkpA, FKBP-type peptidyl-prolyl cis-trans isomerase (rotamase)	passage of proteins through the intermembrane space
YP_002048701	homolog to bacterial PipA, peptidyl-prolyl cis-trans isomerase A (rotamase A)	passage of proteins through the intermembrane space
YP_002048795	homolog to plant Tic21, protein-conducting channel in the inner organelle membrane	protein translocation across the inner organelle membrane
YP_002049520	homolog to plant Tic32, short-chain dehydrogenase	redox regulation of the protein import
YP_002049484	homolog to Hsp93, ATPase	pulling of imported proteins into the organelle matrix
YP_002049416	homolog to Hsp93, ATPase	pulling of imported proteins into the organelle matrix
YP_002048846	homolog to Hsp40 (DnaJ), heat shock protein	pulling of imported proteins into the organelle matrix; stimulates ATPase activity of Hsp70
YP_002048821	homolog to Hsp70 (DnaK), molecular chaperone	pulling of imported proteins into the organelle matrix; interacts with Hsp40 and GrpE
YP_002048880	homolog to Hsp70 (DnaK), molecular chaperone	pulling of imported proteins into the organelle matrix; interacts with Hsp40 and GrpE
YP_002049062	homolog to GrpE, heat shock protein	pulling of imported proteins into the organelle matrix; nucleotide exchange factor for Hsp70