Chains and heterogens:
PDB Chain Sequences:
>2sfpA (A:) mndfhrdtwaevdldaiydnvenlrrllpddthimavvkanayghgdvqvartaleagas rlavafldealalrekgieapilvlgasrpadaalaaqqrialtvfrsdwleeasalysg pfpihfhlkmdtgmgrlgvkdeeetkrivalierhphfvleglythfatadevntdyfsy qytrflhmlewlpsrpplvhcansaaslrfpdrtfnmvrfgiamyglapspgikpllpyp lkeafslhsrlvhvkklqpgekvsygatytaqteewigtipigyadgwlrrlqhfhvlvd gqkapivgricmdqcmirlpgplpvgtkvtligrqgdevisiddvarhletinyevpcti syrvpriffrhkrimevrnaigrgessa
>2sfpA (A:) dfhrdtwaevdldaiydnvenlrrllpddthimavvkanayghgdvqvartaleagasrl avafldealalrekgieapilvlgasrpadaalaaqqrialtvfrsdwleeasalysgpf pihfhlkmdtgmgrlgvkdeeetkrivalierhphfvleglythfatadevntdyfsyqy trflhmlewlpsrpplvhcansaaslrfpdrtfnmvrfgiamyglapspgikpllpyplk eafslhsrlvhvkklqpgekvsygatytaqteewigtipigyadgwlrrlqhfhvlvdgq kapivgricmdqcmirlpgplpvgtkvtligrqgdevisiddvarhletinyevpctisy rvpriffrhkrimevrnai
>2sfpB (B:) mndfhrdtwaevdldaiydnvenlrrllpddthimavvkanayghgdvqvartaleagas rlavafldealalrekgieapilvlgasrpadaalaaqqrialtvfrsdwleeasalysg pfpihfhlkmdtgmgrlgvkdeeetkrivalierhphfvleglythfatadevntdyfsy qytrflhmlewlpsrpplvhcansaaslrfpdrtfnmvrfgiamyglapspgikpllpyp lkeafslhsrlvhvkklqpgekvsygatytaqteewigtipigyadgwlrrlqhfhvlvd gqkapivgricmdqcmirlpgplpvgtkvtligrqgdevisiddvarhletinyevpcti syrvpriffrhkrimevrnaigrgessa
>2sfpB (B:) dfhrdtwaevdldaiydnvenlrrllpddthimavvkanayghgdvqvartaleagasrl avafldealalrekgieapilvlgasrpadaalaaqqrialtvfrsdwleeasalysgpf pihfhlkmdtgmgrlgvkdeeetkrivalierhphfvleglythfatadevntdyfsyqy trflhmlewlpsrpplvhcansaaslrfpdrtfnmvrfgiamyglapspgikpllpyplk eafslhsrlvhvkklqpgekvsygatytaqteewigtipigyadgwlrrlqhfhvlvdgq kapivgricmdqcmirlpgplpvgtkvtligrqgdevisiddvarhletinyevpctisy rvpriffrhkrimevrnai