>4k2aC (C:) observed residues (from ATOM records)
dislhhravlgstmayretgrsdaphvlflhgnptssyiwrnimplvapvghciapdlig
ygqsgkpdisyrffdqadyldalidelgiasaylvaqdwgtalafhlaarrpqlvrglaf
mefirpmrdwsdfhqhdaaretfrkfrtpgvgeamildnnafvervlpgsilrtlseeem
aayrapfatresrmptlmlprelpiagepadvtqaltaahaalaastypkllfvgspgal
vspafaaefaktlkhcaviqlgagghylqedhpeaigrsvagwiagieaasaqrhaale