>1slcB (B:) SEQRES residues acglvasnlnlkpgeclrvrgevaadaksfllnlgkddnnlclhfnprfnahgdvntivc nskdagawgaeqresafpfqpgsvvevcisfnqtdltiklpdgyefkfpnrlnleainyl saggdfkikcvafe