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. 2021 May 21;22(17):2657–2671. doi: 10.1002/cbic.202100106

Figure 4.

Figure 4

Transporter families explored by smFRET. (A) Primary active transporters (left‐right): McjD (E. coli) antimicrobial peptide exporter, ABC family (PDB entry 4PL0), BtuCD (E. coli) vitamin B12 importer, ABC family (PDB entry 1L7V), LCMA1 (Listeria monocytogenes) Ca2+ transporter, P‐type ATPases family (PDB entry 1T5T), bcMalTx (Bacillus cereus) sugar uptake, EIIC family (PDB entry 6BVG). (B) Facilitative diffusion transporter: AtSWEET13 (Arabidopsis thaliana) mono‐ and disaccharides bi‐directional transporter, SWEETs family (PDB entry 5XPD). (C) Secondary active transporters (left‐right): DtpA (E. coli) proton‐dependent oligopeptide transporter, MFS family (PDB entry 6GS4), MdfA (E. coli) multi‐drug proton antiporter, MFS family (PDB entry 4ZOW), EmrE (E. coli) poly‐aromatic cation substrate coupled to proton antiporter, SMR family (PDB entry 2I68), LeuT (Aquifex aeolicus) sodium dependent leucine symporter, APC superfamily (PDB entry 2 A65), GltPh (Pyrococcus horikoshi) sodium coupled aspartate transporter, EAAT family (PDB entry 2NWX), CLC‐ec1 (E. coli) proton‐coupled chlorine antiporter, CLC family (PDB entry 4KK6).