Chains and heterogens:
PDB Chain Sequences:
>1ei1A (A:) snssdsssikvlkgldavrkrpgmyigdtddgtglhhmvfevvdnaidealaghckeiiv tihadnsvsvqddgrgiptgihpeegvsaaevimtvlhaggkfddnsykvsgglhgvgvs vvnalsqklelviqregkihrqiyehgvpqaplavtgetektgtmvrfwpsletftnvte feyeilakrlrelsfldsgvsirlrdkrdgkedhfhyeggikafveylnknktpihpnif yfstekdgigvevalqwndgfqeniycftnnipqrdggthlagfraamtrtlnaymdkeg yskkakvsatgddaregliavvsvkvpdpkfssqtkdklvssevksaveqqmnellaeyl lenptdakivvgkiidaarareaarraremt
>1ei1B (B:) snssdsssikvlkgldavrkrpgmyigdtddgtglhhmvfevvdnaidealaghckeiiv tihadnsvsvqddgrgiptgihpeegvsaaevimtvlhaggkfddnsykvsgglhgvgvs vvnalsqklelviqregkihrqiyehgvpqaplavtgetektgtmvrfwpsletftnvte feyeilakrlrelsfldsgvsirlrdkrdgkedhfhyeggikafveylnknktpihpnif yfstekdgigvevalqwndgfqeniycftnnipqrdggthlagfraamtrtlnaymdkeg yskkakvsatgddaregliavvsvkvpdpkfssqtkdklvssevksaveqqmnellaeyl lenptdakivvgkiidaarareaarraremt