>2c4bB (B:) SEQRES residues
qvintfdgvadylqtyhklpdnyitkseaqalgwvaskgnladvapgksiggdifsnreg
klpgksgrtwreadinytsgfrnsdrilyssdwliykttdayqtftkirsssmgvcpkil
kkcrrdsdclagcvcgpngfcgs