Chains and heterogens:
PDB Chain Sequences:
>3bsbA (A:) grsrlledfrnnrypnlqlreiaghimefsqdqhgsrfiqlkleratpaerqlvfneilq aayqlmvdvfgnyviqkffefgsleqklalaerirghvlslalqmygcrviqkalefips dqqnemvreldghvlkcvkdqngnhvvqkciecvqpqslqfiidafkgqvfalsthpygc rviqrilehclpdqtlpileelhqhteqlvqdqygnyviqhvlehgrpedkskivaeirg nvlvlsqhkfasnvvekcvthasrteravlidevctmndgphsalytmmkdqyanyvvqk midvaepgqrkivmhkirphiatlrkytygkhilaklekyymk
>3bsbA (A:) rsrlledfrnnrypnlqlreiaghimefsqdqhgsrfiqlkleratpaerqlvfneilqa ayqlmvdvfgnyviqkffefgsleqklalaerirghvlslalqmygcrviqkalefipsd qqnemvreldghvlkcvkdqngnhvvqkciecvqpqslqfiidafkgqvfalsthpygcr viqrilehclpdqtlpileelhqhteqlvqdqygnyviqhvlehgrpedkskivaeirgn vlvlsqhkfasnvvekcvthasrteravlidevctmndgphsalytmmkdqyanyvvqkm idvaepgqrkivmhkirphiatlrkytygkhilaklekyy
>3bsbB (B:) grsrlledfrnnrypnlqlreiaghimefsqdqhgsrfiqlkleratpaerqlvfneilq aayqlmvdvfgnyviqkffefgsleqklalaerirghvlslalqmygcrviqkalefips dqqnemvreldghvlkcvkdqngnhvvqkciecvqpqslqfiidafkgqvfalsthpygc rviqrilehclpdqtlpileelhqhteqlvqdqygnyviqhvlehgrpedkskivaeirg nvlvlsqhkfasnvvekcvthasrteravlidevctmndgphsalytmmkdqyanyvvqk midvaepgqrkivmhkirphiatlrkytygkhilaklekyymk
>3bsbB (B:) grsrlledfrnnrypnlqlreiaghimefsqdqhgsrfiqlkleratpaerqlvfneilq aayqlmvdvfgnyviqkffefgsleqklalaerirghvlslalqmygcrviqkalefips dqqnemvreldghvlkcvkdqngnhvvqkciecvqpqslqfiidafkgqvfalsthpygc rviqrilehclpdqtlpileelhqhteqlvqdqygnyviqhvlehgrpedkskivaeirg nvlvlsqhkfasnvvekcvthasrteravlidevctmndgphsalytmmkdqyanyvvqk midvaepgqrkivmhkirphiatlrkytygkhilaklekyy