>4ltcB (B:) SEQRES residues mgsrrydsrttifspegrlyqveyalesishagtaigimasdgivlaaerkvtstlleqd tsteklyklndkiavavagltadaeilintarihaqnylktynedipveilvrrlsdikq gytqhgglrpfgvsfiyagyddrygyqlytsnpsgnytgwkaisvgantsaaqtllqmdy kddmkvddaielalktlskttdssaltydrlefatirkgandgevyqkifkpqeikdilv ktgitkkdedeeadedmk