Chains and heterogens:
PDB Chain Sequences:
>1ibqA (A:) skgsavttpqnndeeyltpvtvgkstlhldfdtgsadlwvfsdelpsseqtghdlytpss satklsgyswdisygdgssasgdvyrdtvtvggvttnkqaveaaskissefvqdtandgl lglafssintvqpkaqttffdtvksqldsplfavqlkhdapgvydfgyiddskytgsity tdadssqgywgfstdgysigdgsssssgfsaiadtgttlillddeivsayyeqvsgaqes yeaggyvfscstdlpdftvvigdykavvpgkyinyapvstgsstcyggiqsnsglglsil gdvflksqyvvfnsegpklgfaaqa
>1ibqB (B:) skgsavttpqnndeeyltpvtvgkstlhldfdtgsadlwvfsdelpsseqtghdlytpss satklsgyswdisygdgssasgdvyrdtvtvggvttnkqaveaaskissefvqdtandgl lglafssintvqpkaqttffdtvksqldsplfavqlkhdapgvydfgyiddskytgsity tdadssqgywgfstdgysigdgsssssgfsaiadtgttlillddeivsayyeqvsgaqes yeaggyvfscstdlpdftvvigdykavvpgkyinyapvstgsstcyggiqsnsglglsil gdvflksqyvvfnsegpklgfaaqa