>3D_helix;141
            protein_name:AChR pore beta subunit (Torpedo marmorata)
            file_name:ACh_pore_beta.txt
            entry_date:3july03
            refman_number:21022
            endnote_number:
            author:Miyazawa,A., Fujiyoshi,Y., Unwin,N.(2003) [Structure and gating mechanism of the acetylcholine receptor pore] {Nature, 423, 949-955}
            remarks:Sequence is from PDB, chain B. There is additional 24 AA as signal sequence in Swiss-Prot. TMhelices=4.
            pir_number:
            Swiss_Prot_entry:Q6S3I0_TORMA
            Swiss_Prot_number:Q6S3I0
            Swiss_Prot_gene:none
            Swiss_Prot_name:Acetylcholine receptor beta subunit
            PDB_title:Acetylcholine Receptor Protein, beta Chain
            PDB_Identifier:1OED
            N_terminal:in
            number_tmsegs:4
            tm_segments:A.224,241;B.249,274;C.290,306;D.438,462
            sequence:SVMEDTLLSVLFENYNPKVRPSQTVGDKVTVRVGLTLTSLLILNEKNEEMTTSVFLNLAWTDYRLQWDPAAYEGIKDLSIPSDDVWQPDIVLMNNNDGSFEITLHVNVLVQHTGAVSWHPSAIYRSSCTIKVMYFPFDWQNCTMVFKSYTYDTSEVILQHALDAKGEREVKEIMINQDAFTENGQWSIEHKPSRKNWRSDDPSYEDVTFYLIIQRKPLFYIVYTIVPCILISILAILVFYLPPDAGEKMSLSISALLALTVFLLLLADKVPETSLSVPIIISYLMFIMILVAFSVILSVVVLNLHHRSPNTHTMPNWIRQIFIETLPPFLWIQRPVTTPSPDSKPTIISRANDEYFIRKPAGDFVCPVDNARVAVQPERLFSEMKWHLNGLTQPVTLPQDLKEAVEAIKYIAEQLESASEFDDLKKDWQYVAMVADRLFLYIFITMCSIGTFSIFLDASHNVPPDNPFA*