Chains and heterogens:
PDB Chain Sequences:
>3szzA (A:) gshmnqmskisvtvngrrypwprvpaiavcldgcepayldaaidaglmpalkrikergav rlahsvipsftnpnnlsiatgsppavhgicgnylyepstgeevmmndpkflraptifqaf ydagarvavvtakdklrallgkglrfdegravcfsseksdkatraehgidnasawlgrpv pevysaalsefvfaagvkllrefrpdimyltttdyvqhkyapgvpeansfyemfdrylae ldglgaaivvtadhgmkpkhkadgspdviyvqdlldewlgkdaarvilpitdpyvvhhga lgsfataylpdgcdrseimarlkaiqgvdvvlgreeacrrfelpedrigdivlvssenkt lgtsehrhdlaaldeplrshgglteqevpfivnrvlpelpnaprlrnfdaffyavtaaae agaeggl
>3szzA (A:) mskisvtvngrrypwprvpaiavcldgcepayldaaidaglmpalkrikergavrlahsv ipsftnpnnlsiatgsppavhgicgnylyepstgeevmmndpkflraptifqafydagar vavvtakdklrallgkglrfdegravcfsseksdkatraehgidnasawlgrpvpevysa alsefvfaagvkllrefrpdimyltttdyvqhkyapgvpeansfyemfdrylaeldglga aivvtadhgmkpkhkadgspdviyvqdlldewlgkdaarvilpitdpyvvhhgalgsfat aylpdgcdrseimarlkaiqgvdvvlgreeacrrfelpedrigdivlvssenktlgtseh rhdlaaldeplrshgglteqevpfivnrvlpelpnaprlrnfdaffyavtaaa