Chains and heterogens:
PDB Chain Sequences:
>1eat_ (-) vvggteaqrnswpsqislqyrsgsswahtcggtlirqnwvmtaahcvdreltfrvvvgeh nlnqnngteqyvgvqkivvhpywntddvaagydiallrlaqsvtlnsyvqlgvlpragti lannspcyitgwgltrtngqlaqtlqqaylptvdyaicssssywgstvknsmvcaggdgv rsgcqgdsggplhclvngqyavhgvtsfvsrlgcnvtrkptvftrvsayiswinnviasn