Chains and heterogens:
PDB Chain Sequences:
>1lbs_ (-) lpsgsdpafsqpksvldagltcqgaspssvskpillvpgtgttgpqsfdsnwiplstqlg ytpcwispppfmlndtqvnteymvnaitalyagsgnnklpvltwsqgglvaqwgltffps irskvdrlmafapdykgtvlagpldalavsapsvwqqttgsalttalrnaggltqivptt nlysatdeivqpqvsnspldssylfngknvqaqavcgplfvidhagsltsqfsyvvgrsa lrsttgqarsadygitdcnplpandltpeqkvaaaallapaaaaivagpkqncepdlmpy arpfavgkrtcsgivtp