>4lml_B mol:protein length:318 Proton-gated ion channel GSQDMVSPPPPIADEPLTVNTGIYLIECYSLDDKAETFKVNAFLSLSWKDRRLAFDPVR SGVRVKTYEPEAIWIPEIRFVNVENARDADVVDISVSPDGTVQYLERFSARVLSPLDFR RYPFDSQTLHIYLIVRSVDTRNIVLAVDLEKVGKNDDVFLTGWDIESFTAVVKPANFAL EDRLESKLDYQLRISRQYFSYIPNIILPMLFILFISWTAFWSTSYEANVTLVVSTLAAH IAFNILVETNLPKAPYMTYTGAIIFMIYLFYFVAVIEVTVQHYLKVESQPARAASITRA SRIAFPVVFLLANIILAFLFFGF