Chains and heterogens:
PDB Chain Sequences:
>3vtk_ (-) qqeatevrpeqkmptllrvyidgphgmgkttttqllvalgsrddivyvpepmtywrvlga setianiyttqhrldqgeisagdaavvmtsaqitmgmpyavtdavlaphiggeagsshap ppaltlifdrhpiaallcypaarylmgsmtpqavlafvalipptlpgtnivlgalpedrh idrlakrqrpgerldlamlaairrvygllantvrylqcggswredwgqlsgtavppqgae pqsnagprphigdtlftlfrapellapngdlynvfawaldvlakrlrsmhvfildydqsp agcrdallqltsgmvqthvttpgsipticdlartfaremgean
>3vtk_ (-) mptllrvyidgphgmgkttttqllvalgsrddivyvpepmtywrvlgasetianiyttqh rldqgeisagdaavvmtsaqitmgmpyavtdavlaphiggeagspppaltlifdrhpiaa llcypaarylmgsmtpqavlafvalipptlpgtnivlgalpedrhidrlakrqrpgerld lamlaairrvygllantvrylqcggswredwgqlsgprphigdtlftlfrapellapngd lynvfawaldvlakrlrsmhvfildydqspagcrdallqltsgmvqthvttpgsipticd lartfaremgean