Chains and heterogens:
PDB Chain Sequences:
>1blnA (A:) dvlmtqtpvslsvslgdqasiscrssqsivhstgntylewylqkpgqspklliykisnrf sgvpdrfsgsgsgtdftlkisrveaedlgvyycfqashaprtfgggtkleikradaaptv sifppsseqltsggasvvcflnnfypkdinvkwkidgserqngvlnswtdqdskdstysm sstltltkdeyerhnsytceatspivksfnrnec
>1blnB (B:) evilvesggglvkpggslklscaasgftfssytmswvrqtpekrlewvatissgggntyy pdsvkgrftisrdnaknnlylqmsslrsedtalyycaryyryeawfaswgqgtlvtvsaa kttapsvyplapvcgdttgssvtlgclvkgyfpepvtltwnsgslssgvhtfpavlqsdl ytlsssvtvtsstwpsqsitcnvahpasstkvdkkiep
>1blnC (C:) dvlmtqtpvslsvslgdqasiscrssqsivhstgntylewylqkpgqspklliykisnrf sgvpdrfsgsgsgtdftlkisrveaedlgvyycfqashaprtfgggtkleikradaaptv sifppsseqltsggasvvcflnnfypkdinvkwkidgserqngvlnswtdqdskdstysm sstltltkdeyerhnsytceatspivksfnrnec
>1blnD (D:) evilvesggglvkpggslklscaasgftfssytmswvrqtpekrlewvatissgggntyy pdsvkgrftisrdnaknnlylqmsslrsedtalyycaryyryeawfaswgqgtlvtvsaa kttapsvyplapvcgdttgssvtlgclvkgyfpepvtltwnsgslssgvhtfpavlqsdl ytlsssvtvtsstwpsqsitcnvahpasstkvdkkiep