>3fctB (B:) SEQRES residues qvqllesgaelvkpgasvklsckasgytftsywmhwvkqrpgrglewigmidpnsggtky nekfkskatltvdkpsntaymqlssltsedsavyyctrrdmdywgagttvtvssastkgp svfplapsskstsggtaalgclvkdyfpepvtvswnsgaltsgvhtfpavlqssglysls svvtvpssslgtqtyicnvnhkpsntkvdkkivpks