Chains and heterogens:
PDB Chain Sequences:
>1frbA (A:) atfvelstkakmpivglgtwksppnqvkeavkaaidagyrhidcayaycnenevgeaiqe kikekavqredlfivsklwptcfekkllkeafqktltdlkldyldlylihwpqglqpgke lfpkddqgriltskttfleawegmeelvdqglvkalgvsnfnhfqierllnkpglkhkpv tnqvechpyltqekliqychskgisvtaysplgspdrpsakpedpslledpkikeiaakh ektsaqvlirfhiqrnvvvipksvtpsriqeniqvfdfqlsdeematilsfnrnwracll petvnmeeypydaey