9j3m is a 2 chain structure with sequence from Arabidopsis thaliana and Vicugna pacos. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
↑Neuhaus HE, Thom E, Möhlmann T, Steup M, Kampfenkel K. Characterization of a novel eukaryotic ATP/ADP translocator located in the plastid envelope of Arabidopsis thaliana L. Plant J. 1997 Jan;11(1):73-82. PMID:9025303 doi:10.1046/j.1365-313x.1997.11010073.x