Chains and heterogens:
PDB Chain Sequences:
>3bsxA (A:) grsrlledfrnnrypnlqlreiaghimefsqdqhgsrfiqlkleratpaerqlvfneilq aayqlmvdvfgnyviqkffefgsleqklalaerirghvlslalqmygcrviqkalefips dqqnemvreldghvlkcvkdqngnhvvqkciecvqpqslqfiidafkgqvfalsthpygc rviqrilehclpdqtlpileelhqhteqlvqdqygnyviqhvlehgrpedkskivaeirg nvlvlsqhkfasnvvekcvthasrteravlidevctmndgphsalytmmkdqyanyvvqk midvaepgqrkivmhkirphiatlrkytygkhilaklekyymk
>3bsxA (A:) grsrlledfrnnrypnlqlreiaghimefsqdqhgsrfiqlkleratpaerqlvfneilq aayqlmvdvfgnyviqkffefgsleqklalaerirghvlslalqmygcrviqkalefips dqqnemvreldghvlkcvkdqngnhvvqkciecvqpqslqfiidafkgqvfalsthpygc rviqrilehclpdqtlpileelhqhteqlvqdqygnyviqhvlehgrpedkskivaeirg nvlvlsqhkfasnvvekcvthasrteravlidevctmndgphsalytmmkdqyanyvvqk midvaepgqrkivmhkirphiatlrkytygkhilaklekyy
>3bsxB (B:) grsrlledfrnnrypnlqlreiaghimefsqdqhgsrfiqlkleratpaerqlvfneilq aayqlmvdvfgnyviqkffefgsleqklalaerirghvlslalqmygcrviqkalefips dqqnemvreldghvlkcvkdqngnhvvqkciecvqpqslqfiidafkgqvfalsthpygc rviqrilehclpdqtlpileelhqhteqlvqdqygnyviqhvlehgrpedkskivaeirg nvlvlsqhkfasnvvekcvthasrteravlidevctmndgphsalytmmkdqyanyvvqk midvaepgqrkivmhkirphiatlrkytygkhilaklekyymk
>3bsxB (B:) grsrlledfrnnrypnlqlreiaghimefsqdqhgsrfiqlkleratpaerqlvfneilq aayqlmvdvfgnyviqkffefgsleqklalaerirghvlslalqmygcrviqkalefips dqqnemvreldghvlkcvkdqngnhvvqkciecvqpqslqfiidafkgqvfalsthpygc rviqrilehclpdqtlpileelhqhteqlvqdqygnyviqhvlehgrpedkskivaeirg nvlvlsqhkfasnvvekcvthasrteravlidevctmndgphsalytmmkdqyanyvvqk midvaepgqrkivmhkirphiatlrkytygkhilakleky