KimA from B. subtilis with nucleotide second-messenger c-di-AMP bound

(2R,3R,3aS,5R,7aR,9R,10R,10aS,12R,14aR)-2,9-bis(6-amino-9H-purin-9-yl)octahydro-2H,7H-difuro[3,2-d:3',2'-j][1,3,7,9,2,8 ]tetraoxadiphosphacyclododecine-3,5,10,12-tetrol 5,12-dioxide

Cyclic di-AMP traps proton-coupled K + transporters of the KUP family in an inward-occluded conformation.

Cyclic di-AMP traps proton-coupled K+ transporters of the KUP family in an inward-occluded conformation

K(+) importer A,Potassium-proton symporter KimA

MYHSIKRFLIGKPLKSQAAGEQKLTKLKALAMLSSDALSSVAYGTEQILIILATISAAAFWYSIPIAVGVLILLLALILS
YRQIIYAYPQGGGAYIVSKENLGEKPGLIAGGSLLVDYILTVAVSISAGTDAITSAFPALHDYHVPIAIFLVLVIMILNL
RGLSESASILAYPVYLFVVALLVLIAVGLFKLMTGQIDQPAHHTSLGTPVAGITLFLLLKAFSSGCSALTGVEAISNAIP
AFKNPPARNAARTLAMMGILLAILFSGITVLAYGYGTAPKPDETVVSQIASETFGRNVFYYVIQGVTSLILVLAANTGFS
AFPQLAFNLARDQYMPRMFTVRGDRLGFSNGIIFLGFASIVLIILFGGQTEHLIPLYAVGVFIPFTLSQTGMCMKWIKQK
PKGWIGKMLINSCGALISFMVLSILFVTKFNVVWPVLIFMPIVVLLFFAIKNHYTAVGEQLRIVDKEPEEIKGTVVIVPV
AGVTTVVQKSIHYAKSLSDQVIAVHVSFDREQEKKFEKRWEELNNGVRLVTLHSSYRSLVHPFDKFLETVEAKAKKEQFS
VMVLFPQFITKKRWHTILHNQSAFLLRVRLFWKKDIMVATLPYHFKK

Atoms with unrealistic or zero occupancies

potassium importer, second-messenger, c-di-AMP, MEMBRANE PROTEIN