>1btxA (A:) SEQRES residues
vddddkivggytcgantvpyqvslnsgyhfcggslinsqwvvsaahcyksgiqvrlgedn
invvegneqfisasksivhpsynsntlnndimliklksaaslnsrvasislptscasagt
qclisgwgntkssgtsypdvlkclkapilsdsscksaypgqitsnmfcagyleggkdscq
gdsggpvvcsgklqgivswgsgcaqknkpgvytkvcnyvswikqtiasn