Sodium (Na+)-pumping F-type ATPase. ATPase activity is stimulated by Na+ (Wiangnon et al. 2007), and Na+ transport in liposomes has been demostrated (Soontharapirakkul and Incharoensakdi 2010). The enzyme appears to play a role in salt tolerance (Soontharapirakkul et al. 2011). This halotolerant cyanobacterium has both a Na+- and a H+-pumping ATPase (see TC# 3.A.2.1.10). The sequence of the δ-subunit was not available at the time of entry.
|Protein Name:||BAK19935.1 ApNa+ATPase a subunit [Aphanothece halophytica]|
|Species:||Aphanothece halophytica  |
|Number of TMSs:||5|
1: MDISPDNIIF WQRDWIVINA TLVYSWLVML ILVIASWLAT RDLGVDPNRV SRWQNTLEII
61: VDQLNTQIRE GIRQEPTQFL PFIGTLFLFI GVSNVLTLFP YYESPAGSLS TAAALAICVL
121: VAVPFYGIKN VGIVNYLKSY ISPLPIMLPF NIISEISRTL SLAVRLFGNI MSTSLLVGIL
181: VVLVPLIFPA ITRAFGMLVG VIQAYVFSIL ALVYIASGME AQRTTKRQQE DG