Chains and heterogens:
PDB Chain Sequences:
>1hq4A (A:) divltqsptimsvspgekvtltcsasssvssnyvywyqqkpgsspkvwiystsnlasgvp arfsgsgsgtsysltissmeaedaasyfclqwssfpytfgggtklelkradvaptvsifp psseqltsggasvvcflnnfypkdinvkwkidgserqngvlnswtdqdskdstysmsstl tltkdeyerhnsytceathktstspivksfnrnec
>1hq4B (B:) dvqlqesgpglvkpsqslsltctvtgysitsgyawnwirqfpgnklewmgyirysgdtry npslksrisitrdtsknqfflqlnsvttedtatyycaigygnsdywgqgtlvtvsaaktt ppsvyplapgcgdttgssvtlgclvkgyfpesvtvtwnsgslsssvhafpallqsglytm sssvtvpsstwpsqtvtcsvahpassttvdkklepkdc
>1hq4B (B:) dvqlqesgpglvkpsqslsltctvtgysitsgyawnwirqfpgnklewmgyirysgdtry npslksrisitrdtsknqfflqlnsvttedtatyycaigygnsdywgqgtlvtvsaaktt ppsvyplapgcgdttgssvtlgclvkgyfpesvtvtwnsgslsssvhafpallqsglytm sssvtvpsstwpsqtvtcsvahpassttvdkklepk
>1hq4C (C:) divltqsptimsvspgekvtltcsasssvssnyvywyqqkpgsspkvwiystsnlasgvp arfsgsgsgtsysltissmeaedaasyfclqwssfpytfgggtklelkradvaptvsifp psseqltsggasvvcflnnfypkdinvkwkidgserqngvlnswtdqdskdstysmsstl tltkdeyerhnsytceathktstspivksfnrnec
>1hq4D (D:) dvqlqesgpglvkpsqslsltctvtgysitsgyawnwirqfpgnklewmgyirysgdtry npslksrisitrdtsknqfflqlnsvttedtatyycaigygnsdywgqgtlvtvsaaktt ppsvyplapgcgdttgssvtlgclvkgyfpesvtvtwnsgslsssvhafpallqsglytm sssvtvpsstwpsqtvtcsvahpassttvdkklepkdc
>1hq4D (D:) dvqlqesgpglvkpsqslsltctvtgysitsgyawnwirqfpgnklewmgyirysgdtry npslksrisitrdtsknqfflqlnsvttedtatyycaigygnsdywgqgtlvtvsaaktt ppsvyplapgcgdttgssvtlgclvkgyfpesvtvtwnsgslsssvhafpallqsglytm sssvtvpsstwpsqtvtcsvahpassttvdkklepk