PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2435611-3 1986 Ion permeability ratio of the TTX and TEA insensitive cation channel calculated from reversal potential shows the following sequence pK+:pNa+:pCs+:pRb+:pNH+4 = 1.00:0.16:0.16:0.09:0.06. Tetrodotoxin 30-33 RB transcriptional corepressor 1 Homo sapiens 147-150