>3sknC (C:) observed residues (from ATOM records)
keveqdpgpfnvpegatvafnctysnsasqsffwyrqdsrkepkllmsvyssgnedgrft
aqlnrasqyisllirdsklsdsatylcvvragklifgqgtelsvkpniqnpdpavyqlrd
skssdksvclftdfdsqtnvsqskdsdvyitdkcvldmrsmdfksnsavawsnksdfaca
nafnnsiipedtffpsp