Potassium-transporting ATPase alpha chain 2 (HK alpha 2) (Non-gastric H(+)/K(+) ATPase subunit alpha) (EC 7.2.2.19) (Non-gastric Na(+)/K(+) ATPase subunit alpha) (EC 7.2.2.13) (Proton pump) (Sodium pump)
1_MHQKT 6_ PEIYS 11_ VELSG 16_ TKDIV 21_ KTDKG 26_ DGKEK 31_ YRGLK 36_ NNCLE 41_ LKKKN 46_ HKEEF 51_ QKELH 56_ LDDHK 61_ LSNRE 66_ LEEKY 71_ GTDII 76_ MGLSS 81_ TRAAE 86_ LLARD 91_ GPNSL 96_ TPPKQ 101_ TPEIV 106_ KFLKQ 111_ MVGGF 116_ SILLW 121_ VGAFL 126_ CWIAY 131_ GIQYS 136_ SDKSA 141_ SLNNV 146_ YLGCV 151_ LGLVV 156_ ILTGI 161_ FAYYQ 166_ EAKST 171_ NIMSS 176_ FNKMI 181_ PQQAL 186_ VIRDS 191_ EKKTI 196_ PSEQL 201_ VVGDI 206_ VEVKG 211_ GDQIP 216_ ADIRV 221_ LSSQG 226_ CRVDN 231_ SSLTG 236_ ESEPQ 241_ PRSSE 246_ FTHEN 251_ PLETK 256_ NICFY 261_ STTCL 266_ EGTVT 271_ GMVIN 276_ TGDRT 281_ IIGHI 286_ ASLAS 291_ GVGNE 296_ KTPIA 301_ IEIEH 306_ FVHIV 311_ AGVAV 316_ SIGIL 321_ FFIIA 326_ VSLKY 331_ QVLDS 336_ IIFLI 341_ GIIVA 346_ NVPEG 351_ LLATV 356_ TVTLS 361_ LTAKR 366_ MAKKN 371_ CLVKN 376_ LEAVE 381_ TLGST 386_ SIICS 391_ DKTGT 396_ LTQNR 401_ MTVAH 406_ LWFDN 411_ QIFVA 416_ DTSED 421_ HSNQV 426_ FDQSS 431_ RTWAS 436_ LSKII 441_ TLCNR 446_ AEFKP 451_ GQENV 456_ PIMKK 461_ AVIGD 466_ ASETA 471_ LLKFS 476_ EVILG 481_ DVMEI 486_ RKRNR 491_ KVAEI 496_ PFNST 501_ NKFQL 506_ SIHEM 511_ DDPHG 516_ KRFLM 521_ VMKGA 526_ PERIL 531_ EKCST 536_ IMING 541_ EEHPL 546_ DKSTA 551_ KTFHT 556_ AYMEL 561_ GGLGE 566_ RVLGF 571_ CHLYL 576_ PADEF 581_ PETYS 586_ FDIDA 591_ MNFPT 596_ SNLCF 601_ VGLLS 606_ MIDPP 611_ RSTVP 616_ DAVTK 621_ CRSAG 626_ IKVIM 631_ VTGDH 636_ PITAK 641_ AIAKS 646_ VGIIS 651_ ANSET 656_ VEDIA 661_ HRLNI 666_ AVEQV 671_ NKRDA 676_ KAAVV 681_ TGMEL 686_ KDMSS 691_ EQLDE 696_ ILANY 701_ QEIVF 706_ ARTSP 711_ QQKLI 716_ IVEGC 721_ QRQDA 726_ VVAVT 731_ GDGVN 736_ DSPAL 741_ KKADI 746_ GIAMG 751_ IAGSD 756_ AAKNA 761_ ADMVL 766_ LDDNF 771_ ASIVT 776_ GVEEG 781_ RLIFD 786_ NLKKT 791_ IAYSL 796_ TKNIA 801_ ELCPF 806_ LIYII 811_ VGLPL 816_ PIGTI 821_ TILFI 826_ DLGTD 831_ IIPSI 836_ ALAYE 841_ KAESD 846_ IMNRK 851_ PRHKN 856_ KDRLV 861_ NQPLA 866_ VYSYL 871_ HIGLM 876_ QALGA 881_ FLVYF 886_ TVYAQ 891_ EGFLP 896_ RTLIN 901_ LRVEW 906_ EKDYV 911_ NDLKD 916_ SYGQE 921_ WTRYQ 926_ REYLE 931_ WTGYT 936_ AFFVG 941_ ILVQQ 946_ IADLI 951_ IRKTR 956_ RNSIF 961_ QQGLF 966_ RNKVI 971_ WVGIT 976_ SQIII 981_ GLILS 986_ YGLGS 991_ VTALS 996_ FTMLR 1001_ AQYWF 1006_ VAVPH 1011_ AILIW 1016_ VYDEV 1021_ RKLFI 1026_ RLYPG 1031_SWWDK
1: The catalytic subunit of a H(+)/K(+) ATPase and/or Na(+)/K(+) ATPase pump which transports K(+) ions in exchange for Na(+) and/or H(+) ions across the apical membrane of epithelial cells. Uses ATP as an energy source to pump K(+) ions into the cell while transporting Na(+) and/or H(+) ions to the extracellular compartment (PubMed:11341842, PubMed:7485470, PubMed:8853415, PubMed:9774385). Involved in the maintenance of electrolyte homeostasis through K(+) ion absorption in kidney and colon (By similarity). In the airway epithelium, may play a primary role in mucus acidification regulating its viscosity and clearance (PubMed:29391451)