>1w4zA (A:) observed residues (from ATOM records)
tqdsevalvtgatsgigleiarrlgkeglrvfvcargeeglrttlkelreagveadgrtc
dvrsvpeiealvaavverygpvdvlvnnagrpgggataeladelwldvvetnltgvfrvt
kqvlkaggmlergtgrivniastggkqgvvhaapysaskhgvvgftkalglelartgitv
navcpgfvetpmaasvrehysdiwevsteeafdritarvpigryvqpsevaemvayligp
gaaavtaqalnvcgglgny