Chains and heterogens:
PDB Chain Sequences:
>1fsqA (A:) mshhwgygkhngpehwhkdfpiakgerqspvdidthtakydpslkplsvsydqatslril nnghafnvefddsqdkavlkggpldgtyrliqshlhmgsldgqgsehtvdkkkyaaelhl vhwntkygdfgkavqqpdglavlgiflkvgsakpglqkvvdvldsiktkgksadftnfdp rgllpesldywtypgslttppllecvtwivlkepisvsseqvlkfrklnfngegepeelm vdnwrpaqplknrqikasfk
>1fsqA (A:) hhwgygkhngpehwhkdfpiakgerqspvdidthtakydpslkplsvsydqatslrilnn ghafnvefddsqdkavlkggpldgtyrliqshlhmgsldgqgsehtvdkkkyaaelhlvh wntkygdfgkavqqpdglavlgiflkvgsakpglqkvvdvldsiktkgksadftnfdprg llpesldywtypgslttppllecvtwivlkepisvsseqvlkfrklnfngegepeelmvd nwrpaqplknrqikasfk
>1fsqB (B:) mshhwgygkhngpehwhkdfpiakgerqspvdidthtakydpslkplsvsydqatslril nnghafnvefddsqdkavlkggpldgtyrliqshlhmgsldgqgsehtvdkkkyaaelhl vhwntkygdfgkavqqpdglavlgiflkvgsakpglqkvvdvldsiktkgksadftnfdp rgllpesldywtypgslttppllecvtwivlkepisvsseqvlkfrklnfngegepeelm vdnwrpaqplknrqikasfk
>1fsqB (B:) hhwgygkhngpehwhkdfpiakgerqspvdidthtakydpslkplsvsydqatslrilnn ghafnvefddsqdkavlkggpldgtyrliqshlhmgsldgqgsehtvdkkkyaaelhlvh wntkygdfgkavqqpdglavlgiflkvgsakpglqkvvdvldsiktkgksadftnfdprg llpesldywtypgslttppllecvtwivlkepisvsseqvlkfrklnfngegepeelmvd nwrpaqplknrqikasfk