>4HFI_1|Chains A, B, C, D, E|Proton-gated ion channel|Gloeobacter violaceus (251221) AQDMVSPPPPIADEPLTVNTGIYLIECYSLDDKAETFKVNAFLSLSWKDRRLAFDPVRSGVRVKTYEPEAIWIPEIRFVNVENARDADVVDISVSPDGTVQYLERFSARVLSPLDFRRYPFDSQTLHIYLIVRSVDTRNIVLAVDLEKVGKNDDVFLTGWDIESFTAVVKPANFALEDRLESKLDYQLRISRQYFSYIPNIILPMLFILFISWTAFWSTSYEANVTLVVSTLIAHIAFNILVETNLPKTPYMTYTGAIIFMIYLFYFVAVIEVTVQHYLKVESQPARAASITRASRIAFPVVFLLANIILAFLFFGF