>3ul4A (A:) observed residues (from ATOM records)
ntieiiignvkarpgdrievpvslknvpdkgivssdfvieydsklfkvielkagdivenp
sesfsynvvekdeiiavlyleetglgieairtdgvfftivmevskdvkpgispikfesfg
atadndmnemtpklvegkveii