>5heg_A mol:protein length:316 Proton-gated ion channel QDMVSPPPPIADEPLTVNTGIYLIECYSLDDKAETFKVNAFLSLSWKDRRLAFDPVRSG VRVKTYEPEAIWIPEIRFVNVENARDADVVDISVSPDGTVQYLERFSARVLSPLDFRRY PFDSQTLHIYLIVRSVDTRNIVLAVDLEKVGKNDDVFLTGWDIESFTAVVKPANFALED RLESKLDYQLRISRQYFSYIPNIILPMLFILFISWTAFWSTSYEANVTLVVSTLIAHIA FNILVETNLGKTPYMTYTGAIIFMIYLFYFVAVIEVTVQHYLKVESQPARAASITRASR IAFPVVFLLANIILAFLFFGF