>1a12A (A:) observed residues (from ATOM records)
kkvkvshrshstepglvltlgqgdvgqlglgenvmerkkpalvsipedvvqaeaggmhtv
clsksgqvysfgcndegalgrdtsvegsemvpgkvelqekvvqvsagdshtaaltddgrv
flwgsfrdnngvigllepmkksmvpvqvqldvpvvkvasgndhlvmltadgdlytlgcge
qgqlgrvpelfanrggrqglerllvpkcvmlksrgsrghvrfqdafcgayftfaishegh
vygfglsnyhqlgtpgtescfipqnltsfknstkswvgfsggqhhtvcmdsegkayslgr
aeygrlglgegaeeksiptlisrlpavssvacgasvgyavtkdgrvfawgmgtnyqlgtg
qdedawspvemmgkqlenrvvlsvssggqhtvllvkdkeqs