Chains and heterogens:
PDB Chain Sequences:
>1bhe_ (-) sdsrtvsepktpsscttlkadsstatstiqkalnncdqgkavrlsagstsvflsgplslp sgvsllidkgvtlravnnaksfenapsscgvvdkngkgcdafitavsttnsgiygpgtid gqggvklqdkkvswwelaadakvkklkqntprliqinksknftlynvslinspnfhvvfs dgdgftawkttiktpstarntdgidpmssknitiaysniatgddnvaikaykgraetrni silhndfgtghgmsigsetmgvynvtvddlkmngttnglriksdksaagvvngvrysnvv mknvakpividtvyekkegsnvpdwsditfkdvtsetkgvvvlngenakkpievtmknvk ltsdstwqiknvnvkk