Chains and heterogens:
PDB Chain Sequences:
>1bes_ (-) lvhvasvekgrsyedfqkvynaialklreddeydnyigygpvlvrlawhisgtwdkhdnt ggsyggtyrfkkefndpsnaglqngfkflepihkefpwissgdlfslggvtavqemqgpk ipwrcgrvdtpedttpdngrlpdadkdagyvrtffqrlnmndrevvalmgahalgkthlk nsgyegpygaannvftnefylnllnedwklekndanneqwdsksgymmlptdysliqdpk ylsivkeyandqdkffkdfskafeklledgitfpkdapspfifktleeqgl