>1LSS_1|Chains A, B, C, D|Trk system potassium uptake protein trkA homolog|Methanocaldococcus jannaschii (2190) GSHGMYIIIAGIGRVGYTLAKSLSEKGHDIVLIDIDKDICKKASAEIDALVINGDCTKIKTLEDAGIEDADMYIAVTGKEEVNLMSSLLAKSYGINKTIARISEIEYKDVFERLGVDVVVSPELIAANYIEKLIERPGIL