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Table 5 Numbers of specific types of alkali-metal cation transporters of the four Aureobasidium pullulans varieties

From: Genome sequencing of four Aureobasidium pullulans varieties: biotechnological potential, stress tolerance, and description of new species

Cell location Transporter type Substrate specificity/main function Sc homologue Number per A. pullulans variety*
     ApP ApS ApN ApM
Plasma membrane Channel K+ efflux Tok1 2 2 2 2
Uniporter K+ uptake Trk1,2 3 2 (+1) 2 2
Antiporter with H+ K+ uptake (Hak) / 1 1 1 1
P-type ATPase K+ uptake (Acu) / 2 2 2 2
P-type ATPase Na+ (and Li+) efflux Ena1,2,5 1 2 2 2
Antiporter with H+ Na+ (and K+) efflux Nha1 3 3 3 3
Symporter Na+/Pi cotransporter Pho89 3 3 1 2
P-type ATPase H+ export Pma1,2 1 1 1 1
Golgi apparatus Antiporter K+/H+ exchange Kha1 1 1 1 1
P-type ATPase Ca2+ and Mn2+ transport into Golgi apparatus Pmr1 2 2 2 2
Late endosomes Antiporter Na + (and K+) efflux Nhx1 1 1 1 1
Vacuole Antiporter Na+, Ca2+/H+ exchange Vnx1/Vcx1 1 (4) 1 (4) 1 (4) 1 (4)
V-type ATPase (4 subunits) H+ in vacuole Vma1 1 1 1 1
P-type ATPase Depleting cytosol of Ca2+ ions Pmc1 1 1 1 1
Mitochondria Antiporter K+/H+ exchange Mrs7/Mdm38 1 1 1 1
  1. *ApP, A. pullulans var. pullulans; ApS, A. pullulans var. subglaciale; ApN, A. pullulans var. namibiae; ApM, A. pullulans var. melanogenum; Sc, S. cerevisiae.