Chains and heterogens:
PDB Chain Sequences:
>1sqhA (A:) mssdkngdilrplsdsevdelldlykvkfgirnfhylllynqrkwdrqlseaqiprndln hislrkqfythrrgnfrtwgtyvslhrdivqsvsffswqpdgaaelwecleqtqliewtq galltnvdlgfcnrvkelavsrgvtaiqprqcfgmvlshedafcakvpdlpsefeirrlr aedaamvhdswpnkgegsltylqalvrfnkslgicrsdtgeliawifqndfsglgmlqvl pkaerrglggllaaamsreiargeeitltawivatnwrseallkrigyqkdlvnewiklv pnsslehhhhhh
>1sqhA (A:) gdilrplsdsevdelldlykvkfgirnfhylllynqrkwdrqlseaqiprndlnhislrk qfythrrgnfrtwgtyvslhrdivqsvsffswqpdgaaelwecleqtqliewtqgalltn vdlgfcnrvkelavsrgvtaiqprqcfgmvlshedafcakvpdlpsefeirrlraedaam vhdswpnkgegsltylqalvrfnkslgicrsdtgeliawifqndfsglgmlqvlpkaerr glggllaaamsreiargeeitltawivatnwrseallkrigyqkdlvnewiklvpns