Chains and heterogens:
PDB Chain Sequences:
>1u92A (A:) alqltqspsslsasvgdrititcrasqgvtsalawyrqkpgsppqlliydasslesgvps rfsgsgsgteftltistlrpedfatyycqqlhfyphtfgggtrvdvrrtvaapsvfifpp sdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstlt lskadyekhkvyecevthqglsspvtksfnrgec
>1u92B (B:) ritlkesgpplvkptqtltltcsfsgfslsdfgvgvgwirqppgkalewlaiiysdddkr yspslntrltitkdtsknqvvlvmtrvspvdtatyfcahrrgpttlfgvpiargpvnamd vwgqgitvtisststkgpsvfplapsskstaggaaalgclvkdyfpepvtvswnsgalts gvhtfpavlqssglyslssvvtvpssslgtqtytcnvnhkpsntkvdkrvepks
>1u92B (B:) ritlkesgpplvkptqtltltcsfsgfslsdfgvgvgwirqppgkalewlaiiysdddkr yspslntrltitkdtsknqvvlvmtrvspvdtatyfcahrrgpttlfgvpiargpvnamd vwgqgitvtisststkgpsvfplapaaalgclvkdyfpepvtvswnsgaltsgvhtfpav lqssglyslssvvtvpssslqtytcnvnhkpsntkvdkrvepks