>2d4aA (A:) observed residues (from ATOM records)
mitilgagkvgmatavmlmmrgyddllliartpgkpqgealdlahaaaelgvdirisgsn
syedmrgsdivlvtagiglleanantmadlaekikayakdaivvittnpvdamtyvmykk
tgfprervigfsgildsarmayyisqklgvsfksvnaivlgmhgqkmfpvprlssvggvp
lehlmskeeieevvsetvnagakitelrgyssnygpaaglvltveaikrdskriypysly
lqgeygyndivaevpavigksgieriielpltedekrkfdeavqavkklvetlppqlr