>2exlA (A:) observed residues (from ATOM records)
ksekfafqaevnrmmkliinslyknkeiflrelisnasdaldkirlisltdenalagnee
ltvkikcdkeknllhvtdtgvgmtreelvknlgtiastseligqfgvgfysaflvadkvi
vtskhnndtqhiwesdsnefsviadprgntlgrgttitlvlkeeasdyleldtiknlvkk
ysqfinfpiyvwssktktvwdwelmn