Chains and heterogens:
PDB Chain Sequences:
>4ivrA (A:) mptllrvyidgphgmgkttttqllvalgsrddivyvpepmtywrvlgasetianiyttqh rldqgeisagdaavvmtsaqitmgmpyavtdavlaphiggeagsshapppaltlifdrhp iaallcypaarylmgsmtpqavlafvalipptlpgtnivlgalpedrhidrlakrqrpge rldlamlaairrvygllantvrylqcggswredwgqlsgtavppqgaepqsnagprphig dtlftlfrapellapngdlynvfawaldvlakrlrsmhvfildydqspagcrdallqlts gmvqthvttpgsipticdlartfaremgean
>4ivrA (A:) mptllrvyidgphgmgkttttqllvalgsrddivyvpepmtywrvlgasetianiyttqh rldqgeisagdaavvmtsaqitmgmpyavtdavlaphiggeapppaltlifdrhpiaall cypaarylmgsmtpqavlafvalipptlpgtnivlgalpedrhidrlakpgerldlamla airrvygllantvrylqcggswredwgqlsgnagprphigdtlftlfrapellapngdly nvfawaldvlakrlrsmhvfildydqspagcrdallqltsgmvqthvttpgsipticdla rtfaremge
>4ivrB (B:) mptllrvyidgphgmgkttttqllvalgsrddivyvpepmtywrvlgasetianiyttqh rldqgeisagdaavvmtsaqitmgmpyavtdavlaphiggeagsshapppaltlifdrhp iaallcypaarylmgsmtpqavlafvalipptlpgtnivlgalpedrhidrlakrqrpge rldlamlaairrvygllantvrylqcggswredwgqlsgtavppqgaepqsnagprphig dtlftlfrapellapngdlynvfawaldvlakrlrsmhvfildydqspagcrdallqlts gmvqthvttpgsipticdlartfaremgean
>4ivrB (B:) mptllrvyidgphgmgkttttqllvalgsrddivyvpepmtywrvlgasetianiyttqh rldqgeisagdaavvmtsaqitmgmpyavtdavlaphiggeapppaltlifdrhpiaall cypaarylmgsmtpqavlafvalipptlpgtnivlgalpedrhidrlakrqrpgerldla mlaairrvygllantvrylqcggswredwgqlprphigdtlftlfrapellapngdlynv fawaldvlakrlrsmhvfildydqspagcrdallqltsgmvqthvttpgsipticdlart faremge