Chains and heterogens:
PDB Chain Sequences:
>1yb5A (A:) mhhhhhhssgvdlgtenlyfqsmatgqklmravrvfefggpevlklrsdiavpipkdhqv likvhacgvnpvetyirsgtysrkpllpytpgsdvagvieavgdnasafkkgdrvftsst isggyaeyalaadhtvyklpekldfkqgaaigipyftayralihsacvkagesvlvhgas ggvglaacqiarayglkilgtagteegqkivlqngahevfnhrevnyidkikkyvgekgi diiiemlanvnlskdlsllshggrvivvgsrgtieinprdtmakessiigvtlfsstkee fqqyaaalqagmeigwlkpvigsqyplekvaeaheniihgsgatgkmilll
>1yb5A (A:) klmravrvfefggpevlklrsdiavpipkdhqvlikvhacgvnpvetyirsgtysrkpll pytpgsdvagvieavgdnasafkkgdrvftsstisggyaeyalaadhtvyklpekldfkq gaaigipyftayralihsacvkagesvlvhgasggvglaacqiarayglkilgtagteeg qkivlqngahevfnhrevnyidkikkyvgekgidiiiemlanvnlskdlsllshggrviv vgsrgtieinprdtmakessiigvtlfsstkeefqqyaaalqagmeigwlkpvigsqypl ekvaeaheniihgsgatgkmilll
>1yb5B (B:) mhhhhhhssgvdlgtenlyfqsmatgqklmravrvfefggpevlklrsdiavpipkdhqv likvhacgvnpvetyirsgtysrkpllpytpgsdvagvieavgdnasafkkgdrvftsst isggyaeyalaadhtvyklpekldfkqgaaigipyftayralihsacvkagesvlvhgas ggvglaacqiarayglkilgtagteegqkivlqngahevfnhrevnyidkikkyvgekgi diiiemlanvnlskdlsllshggrvivvgsrgtieinprdtmakessiigvtlfsstkee fqqyaaalqagmeigwlkpvigsqyplekvaeaheniihgsgatgkmilll
>1yb5B (B:) klmravrvfefggpevlklrsdiavpipkdhqvlikvhacgvnpvetyirsgtysrkpll pytpgsdvagvieavgdnasafkkgdrvftsstisggyaeyalaadhtvyklpekldfkq gaaigipyftayralihsacvkagesvlvhgasggvglaacqiarayglkilgtagteeg qkivlqngahevfnhrevnyidkikkyvgekgidiiiemlanvnlskdlsllshggrviv vgsrgtieinprdtmakessiigvtlfsstkeefqqyaaalqagmeigwlkpvigsqypl ekvaeaheniihgsgatgkmilll