Chains and heterogens:
PDB Chain Sequences:
>4fsfA (A:) hhhhhharsvrhiaipahrglitdrngeplavstpvttlwanpkelmtakerwpqlaaal gqdtklfadrieqnaerefiylvrgltpeqgegvialkvpgvysieefrrfypagevvah avgftdvddrgregielafdewlagvpgkrqvlkdrrgrvikdvqvtknakpgktlalsi dlrlqylahrelrnallengakagslvimdvktgeilamtnqptynpnnrrnlqpaamrn ramidvfepgstvkpfsmsaalasgrwkpsdivdvypgtlqigrytirdvsrnsrqldlt gilikssnvgiskiafdigaesiysvmqqvglgqdtglgfpgervgnlpnhrkwpkaeta tlaygyglsvtaiqlahayaalandgksvplsmtrvdrvpdgvqvispevastvqgmlqq vveaqggvfraqvpgyhaagksgtarkvsvgtkgyrenayrslfagfapatdpriamvvv idepskagyfgglvsapvfskvmagalrlmnvppdnlptateqqqvnaapakggrg
>4fsfA (A:) vrhiaipahrglitdrngeplavstpvttlwanpkelmtakerwpqlaaalgqdtklfad rieqnaerefiylvrgltpeqgegvialkvpgvysieefrrfypagevvahavgftdvdd rgregielafdewlagvpgkrqvlkdrrgrvikdvqvtknakpgktlalsidlrlqylah relrnallengakagslvimdvktgeilamtnqptynpnnrrnlqpaamrnramidvfep gstvkpfsmsaalasgrwkpsdivdvypgtlqigrytirdvsrnsrqldltgilikssnv giskiafdigaesiysvmqqvglgqdtglgfpgervgnlpnhrkwpkaetatlaygygls vtaiqlahayaalandgksvplsmtrvdrvpdgvqvispevastvqgmlqqvveaqggvf raqvpgyhaagksgtarknayrslfagfapatdpriamvvvidepskagyfgglvsapvf skvmagalrlmnvppdnlpta