Chains and heterogens:
PDB Chain Sequences:
>1rfvA (A:) meeecrvlsiqshvvrgyvgnraatfplqvlgfevdavnsvqfsnhtgyshwkgqvlnsd elqelydglklnhvnqydyvltgytrdksflamvvdivqelkqqnprlvyvcdpvmgdqr ngegamyvpddllpvyrekvvpvadiitpnqfeaelltgrkihsqeealevmdmlhsmgp dtvvitssnllsprgsdylmalgsqrtrapdgsvvtqrirmemhkvdavfvgtgdlfaam llawthkhpnnlkvacektvsamhhvlqrtikcakaksgegvkpspaqlelrmvqskkdi espeivvqatvl
>1rfvA (A:) ecrvlsiqshvvrgyvgnraatfplqvlgfevdavnsvqfsnhtgyshwkgqvlnsdelq elydglklnhvnqydyvltgytrdksflamvvdivqelkqqnprlvyvcdpvmgdqrnge gamyvpddllpvyrekvvpvadiitpnqfeaelltgrkihsqeealevmdmlhsmgpdtv vitssnllsprgsdylmalgsqrtrgsvvtqrirmemhkvdavfvgtgdlfaamllawth khpnnlkvacektvsamhhvlqrtikcakaksgegvkpspaqlelrmvqskkdiespeiv vqatvl
>1rfvB (B:) meeecrvlsiqshvvrgyvgnraatfplqvlgfevdavnsvqfsnhtgyshwkgqvlnsd elqelydglklnhvnqydyvltgytrdksflamvvdivqelkqqnprlvyvcdpvmgdqr ngegamyvpddllpvyrekvvpvadiitpnqfeaelltgrkihsqeealevmdmlhsmgp dtvvitssnllsprgsdylmalgsqrtrapdgsvvtqrirmemhkvdavfvgtgdlfaam llawthkhpnnlkvacektvsamhhvlqrtikcakaksgegvkpspaqlelrmvqskkdi espeivvqatvl
>1rfvB (B:) ecrvlsiqshvvrgyvgnraatfplqvlgfevdavnsvqfsnhtgyshwkgqvlnsdelq elydglklnhvnqydyvltgytrdksflamvvdivqelkqqnprlvyvcdpvmgdqrnge gamyvpddllpvyrekvvpvadiitpnqfeaelltgrkihsqeealevmdmlhsmgpdtv vitssnllsprgsdylmalgsqrtrapdgsvvtqrirmemhkvdavfvgtgdlfaamlla wthkhpnnlkvacektvsamhhvlqrtikcakaksgegvkpspaqlelrmvqskkdiesp eivvqatvl