1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 Cordes, M.H. Walsh, N.P. McKnight, C.J. Sauer, R.T. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 1 90.00 90.00 90.00 1.000 1.000 1.000 C3 H7 N O2 89.093 y ALANINE L-peptide linking C6 H15 N4 O2 1 175.209 y ARGININE L-peptide linking C4 H8 N2 O3 132.118 y ASPARAGINE L-peptide linking C4 H7 N O4 133.103 y ASPARTIC ACID L-peptide linking C5 H10 N2 O3 146.144 y GLUTAMINE L-peptide linking C5 H9 N O4 147.129 y GLUTAMIC ACID L-peptide linking C2 H5 N O2 75.067 y GLYCINE peptide linking C6 H10 N3 O2 1 156.162 y HISTIDINE L-peptide linking C6 H13 N O2 131.173 y ISOLEUCINE L-peptide linking C6 H13 N O2 131.173 y LEUCINE L-peptide linking C6 H15 N2 O2 1 147.195 y LYSINE L-peptide linking C5 H11 N O2 S 149.211 y METHIONINE L-peptide linking C9 H11 N O2 165.189 y PHENYLALANINE L-peptide linking C5 H9 N O2 115.130 y PROLINE L-peptide linking C3 H7 N O3 105.093 y SERINE L-peptide linking C11 H12 N2 O2 204.225 y TRYPTOPHAN L-peptide linking C9 H11 N O3 181.189 y TYROSINE L-peptide linking C5 H11 N O2 117.146 y VALINE L-peptide linking UK J.Mol.Biol. JMOBAK 0070 0022-2836 326 899 909 10.1016/S0022-2836(02)01425-0 12581649 Solution structure of Switch Arc, a mutant with 3(10) helices replacing a wild-type beta-ribbon 2003 10.2210/pdb1nla/pdb pdb_00001nla 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 1 SINGLE WAVELENGTH M 1 1.0 7705.826 Transcriptional repressor arc N11L, L12N 2 man polymer no no MKGMSKMPQFLNRWPREVLDLVRKVAEENGRSVNSEIYQRVMESFKKEGRIGAHHHHHHKNQHE MKGMSKMPQFLNRWPREVLDLVRKVAEENGRSVNSEIYQRVMESFKKEGRIGAHHHHHHKNQHE A,B polypeptide(L) n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n P22-like viruses Escherichia Escherichia coli sample ARC 10754 Enterobacteria phage P22 469008 Escherichia coli BL21(DE3) BL21(DE3) PLASMID pET800 database_2 pdbx_nmr_software pdbx_struct_assembly pdbx_struct_oper_list struct_ref_seq_dif repository Initial release Version format compliance Version format compliance Data collection Database references Derived calculations 1 0 2003-03-18 1 1 2008-04-29 1 2 2011-07-13 1 3 2021-10-27 _database_2.pdbx_DOI _database_2.pdbx_database_accession _pdbx_nmr_software.name _struct_ref_seq_dif.details Theoretical model of the same mutant RCSB Y RCSB 2003-01-06 REL REL structures with the least restraint violations 28 13 2D NOESY 3D_15N-separated_NOESY HNHA HNHB HSQCs (hydrogen exchange) 20mM phosphate 4.8 ambient 303 K 20 mM phosphate 4.8 ambient 303 K 20 mM phosphate, 150 mM KCl 4.67 ambient 303 K Experimentally derived restraints included 810 nOe distance restraints per monomer, along with 3 hydrogen bond restraints, 31 phi-angle restraints and 3 chi1-angle restraints, for a total of 847 restraints per monomer spanning residues 5-53. Structure calculations were performed using a simulated annealing protocol designed for symmetric dimers (M. Nilges, Proteins Struct. Funct. Gen, 17, 297 (1993)). As starting points for the calculation, 28 structures were generated in which the conformation of the N-terminal region (residues 1-13) was random, and that of the remainder of the protein restrained to be similar to wild-type Arc. The use of completely random starting structures led to extremely poor convergence rates, but those calculations which did converge yielded structures similar to those obtained from calculations using non-random starting structures. Each semi-random starting structure was then annealed to a model structure using the distance, angle and hydrogen bond restraints mentioned above. Two "seed" restraints, Arg 40 HE-Phe 45 HD and Trp 14 HE3-Tyr 38 HE, were described as unambiguously intermolecular. In the wild-type Arc structure, the difference between the intra and intermolecular distances for these atoms is >10 A. Use of the seed restraints improved convergence but again did not alter the qualitative nature of the results. All other NOE distance restraints were described ambiguously using sum potentials. Hydrogen-bond restraints in alpha-helices were described as intramonomer. In the conformational search phase of the calculations, non-bonded interactions were computed only between C-alpha atoms with a van der Waals term of 0.1. 13 of 28 calculated structures were accepted with no angle violations >5 degrees and no more than two nOe violations >0.35 A. These comprise the ensemble submitted here. simulated annealing 3 closest to the average 4 mM uniform 15N-labelled Arc repressor NL11/LN12 (Switch Arc) 90% H2O/10% D2O 7.5 mM 10% 13C-labelled Arc repressor NL11/LN12 (Switch Arc) 90% H2O, 10% D20 5 mM uniform 15N-labelled Arc repressor NL11/LN12 (Switch Arc) 100% D2O Bruker collection XwinNMR 2.1 Delaglio, Grzesiek, Vuister, Zhu, Pfeifer, Bax processing NMRPipe 1.1 Delaglio, Grzesiek, Vuister, Zhu, Pfeifer, Bax processing NMRDraw 2.1 Johnston, Blevins data analysis NMRView 3.1 Brunger structure solution X-PLOR 3.1 Brunger refinement X-PLOR 3.1 500 Bruker DMX MET 1 n 1 MET 1 A LYS 2 n 2 LYS 2 A GLY 3 n 3 GLY 3 A MET 4 n 4 MET 4 A SER 5 n 5 SER 5 A LYS 6 n 6 LYS 6 A MET 7 n 7 MET 7 A PRO 8 n 8 PRO 8 A GLN 9 n 9 GLN 9 A PHE 10 n 10 PHE 10 A LEU 11 n 11 LEU 11 A ASN 12 n 12 ASN 12 A ARG 13 n 13 ARG 13 A TRP 14 n 14 TRP 14 A PRO 15 n 15 PRO 15 A ARG 16 n 16 ARG 16 A GLU 17 n 17 GLU 17 A VAL 18 n 18 VAL 18 A LEU 19 n 19 LEU 19 A ASP 20 n 20 ASP 20 A LEU 21 n 21 LEU 21 A VAL 22 n 22 VAL 22 A ARG 23 n 23 ARG 23 A LYS 24 n 24 LYS 24 A VAL 25 n 25 VAL 25 A ALA 26 n 26 ALA 26 A GLU 27 n 27 GLU 27 A GLU 28 n 28 GLU 28 A ASN 29 n 29 ASN 29 A GLY 30 n 30 GLY 30 A ARG 31 n 31 ARG 31 A SER 32 n 32 SER 32 A VAL 33 n 33 VAL 33 A ASN 34 n 34 ASN 34 A SER 35 n 35 SER 35 A GLU 36 n 36 GLU 36 A ILE 37 n 37 ILE 37 A TYR 38 n 38 TYR 38 A GLN 39 n 39 GLN 39 A ARG 40 n 40 ARG 40 A VAL 41 n 41 VAL 41 A MET 42 n 42 MET 42 A GLU 43 n 43 GLU 43 A SER 44 n 44 SER 44 A PHE 45 n 45 PHE 45 A LYS 46 n 46 LYS 46 A LYS 47 n 47 LYS 47 A GLU 48 n 48 GLU 48 A GLY 49 n 49 GLY 49 A ARG 50 n 50 ARG 50 A ILE 51 n 51 ILE 51 A GLY 52 n 52 GLY 52 A ALA 53 n 53 ALA 53 A n 54 54 A n 55 55 A n 56 56 A n 57 57 A n 58 58 A n 59 59 A n 60 60 A n 61 61 A n 62 62 A n 63 63 A n 64 64 A MET 1 n 1 MET 1 B LYS 2 n 2 LYS 2 B GLY 3 n 3 GLY 3 B MET 4 n 4 MET 4 B SER 5 n 5 SER 5 B LYS 6 n 6 LYS 6 B MET 7 n 7 MET 7 B PRO 8 n 8 PRO 8 B GLN 9 n 9 GLN 9 B PHE 10 n 10 PHE 10 B LEU 11 n 11 LEU 11 B ASN 12 n 12 ASN 12 B ARG 13 n 13 ARG 13 B TRP 14 n 14 TRP 14 B PRO 15 n 15 PRO 15 B ARG 16 n 16 ARG 16 B GLU 17 n 17 GLU 17 B VAL 18 n 18 VAL 18 B LEU 19 n 19 LEU 19 B ASP 20 n 20 ASP 20 B LEU 21 n 21 LEU 21 B VAL 22 n 22 VAL 22 B ARG 23 n 23 ARG 23 B LYS 24 n 24 LYS 24 B VAL 25 n 25 VAL 25 B ALA 26 n 26 ALA 26 B GLU 27 n 27 GLU 27 B GLU 28 n 28 GLU 28 B ASN 29 n 29 ASN 29 B GLY 30 n 30 GLY 30 B ARG 31 n 31 ARG 31 B SER 32 n 32 SER 32 B VAL 33 n 33 VAL 33 B ASN 34 n 34 ASN 34 B SER 35 n 35 SER 35 B GLU 36 n 36 GLU 36 B ILE 37 n 37 ILE 37 B TYR 38 n 38 TYR 38 B GLN 39 n 39 GLN 39 B ARG 40 n 40 ARG 40 B VAL 41 n 41 VAL 41 B MET 42 n 42 MET 42 B GLU 43 n 43 GLU 43 B SER 44 n 44 SER 44 B PHE 45 n 45 PHE 45 B LYS 46 n 46 LYS 46 B LYS 47 n 47 LYS 47 B GLU 48 n 48 GLU 48 B GLY 49 n 49 GLY 49 B ARG 50 n 50 ARG 50 B ILE 51 n 51 ILE 51 B GLY 52 n 52 GLY 52 B ALA 53 n 53 ALA 53 B n 54 54 B n 55 55 B n 56 56 B n 57 57 B n 58 58 B n 59 59 B n 60 60 B n 61 61 B n 62 62 B n 63 63 B n 64 64 B author_defined_assembly 2 dimeric 1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 1_555 identity operation 0.0000000000 0.0000000000 0.0000000000 1 A HIS 54 A HIS 54 1 Y 1 A HIS 55 A HIS 55 1 Y 1 A HIS 56 A HIS 56 1 Y 1 A HIS 57 A HIS 57 1 Y 1 A HIS 58 A HIS 58 1 Y 1 A HIS 59 A HIS 59 1 Y 1 A LYS 60 A LYS 60 1 Y 1 A ASN 61 A ASN 61 1 Y 1 A GLN 62 A GLN 62 1 Y 1 A HIS 63 A HIS 63 1 Y 1 A GLU 64 A GLU 64 1 Y 1 B HIS 54 B HIS 54 1 Y 1 B HIS 55 B HIS 55 1 Y 1 B HIS 56 B HIS 56 1 Y 1 B HIS 57 B HIS 57 1 Y 1 B HIS 58 B HIS 58 1 Y 1 B HIS 59 B HIS 59 1 Y 1 B LYS 60 B LYS 60 1 Y 1 B ASN 61 B ASN 61 1 Y 1 B GLN 62 B GLN 62 1 Y 1 B HIS 63 B HIS 63 1 Y 1 B GLU 64 B GLU 64 1 Y 2 A HIS 54 A HIS 54 1 Y 2 A HIS 55 A HIS 55 1 Y 2 A HIS 56 A HIS 56 1 Y 2 A HIS 57 A HIS 57 1 Y 2 A HIS 58 A HIS 58 1 Y 2 A HIS 59 A HIS 59 1 Y 2 A LYS 60 A LYS 60 1 Y 2 A ASN 61 A ASN 61 1 Y 2 A GLN 62 A GLN 62 1 Y 2 A HIS 63 A HIS 63 1 Y 2 A GLU 64 A GLU 64 1 Y 2 B HIS 54 B HIS 54 1 Y 2 B HIS 55 B HIS 55 1 Y 2 B HIS 56 B HIS 56 1 Y 2 B HIS 57 B HIS 57 1 Y 2 B HIS 58 B HIS 58 1 Y 2 B HIS 59 B HIS 59 1 Y 2 B LYS 60 B LYS 60 1 Y 2 B ASN 61 B ASN 61 1 Y 2 B GLN 62 B GLN 62 1 Y 2 B HIS 63 B HIS 63 1 Y 2 B GLU 64 B GLU 64 1 Y 3 A HIS 54 A HIS 54 1 Y 3 A HIS 55 A HIS 55 1 Y 3 A HIS 56 A HIS 56 1 Y 3 A HIS 57 A HIS 57 1 Y 3 A HIS 58 A HIS 58 1 Y 3 A HIS 59 A HIS 59 1 Y 3 A LYS 60 A LYS 60 1 Y 3 A ASN 61 A ASN 61 1 Y 3 A GLN 62 A GLN 62 1 Y 3 A HIS 63 A HIS 63 1 Y 3 A GLU 64 A GLU 64 1 Y 3 B HIS 54 B HIS 54 1 Y 3 B HIS 55 B HIS 55 1 Y 3 B HIS 56 B HIS 56 1 Y 3 B HIS 57 B HIS 57 1 Y 3 B HIS 58 B HIS 58 1 Y 3 B HIS 59 B HIS 59 1 Y 3 B LYS 60 B LYS 60 1 Y 3 B ASN 61 B ASN 61 1 Y 3 B GLN 62 B GLN 62 1 Y 3 B HIS 63 B HIS 63 1 Y 3 B GLU 64 B GLU 64 1 Y 4 A HIS 54 A HIS 54 1 Y 4 A HIS 55 A HIS 55 1 Y 4 A HIS 56 A HIS 56 1 Y 4 A HIS 57 A HIS 57 1 Y 4 A HIS 58 A HIS 58 1 Y 4 A HIS 59 A HIS 59 1 Y 4 A LYS 60 A LYS 60 1 Y 4 A ASN 61 A ASN 61 1 Y 4 A GLN 62 A GLN 62 1 Y 4 A HIS 63 A HIS 63 1 Y 4 A GLU 64 A GLU 64 1 Y 4 B HIS 54 B HIS 54 1 Y 4 B HIS 55 B HIS 55 1 Y 4 B HIS 56 B HIS 56 1 Y 4 B HIS 57 B HIS 57 1 Y 4 B HIS 58 B HIS 58 1 Y 4 B HIS 59 B HIS 59 1 Y 4 B LYS 60 B LYS 60 1 Y 4 B ASN 61 B ASN 61 1 Y 4 B GLN 62 B GLN 62 1 Y 4 B HIS 63 B HIS 63 1 Y 4 B GLU 64 B GLU 64 1 Y 5 A HIS 54 A HIS 54 1 Y 5 A HIS 55 A HIS 55 1 Y 5 A HIS 56 A HIS 56 1 Y 5 A HIS 57 A HIS 57 1 Y 5 A HIS 58 A HIS 58 1 Y 5 A HIS 59 A HIS 59 1 Y 5 A LYS 60 A LYS 60 1 Y 5 A ASN 61 A ASN 61 1 Y 5 A GLN 62 A GLN 62 1 Y 5 A HIS 63 A HIS 63 1 Y 5 A GLU 64 A GLU 64 1 Y 5 B HIS 54 B HIS 54 1 Y 5 B HIS 55 B HIS 55 1 Y 5 B HIS 56 B HIS 56 1 Y 5 B HIS 57 B HIS 57 1 Y 5 B HIS 58 B HIS 58 1 Y 5 B HIS 59 B HIS 59 1 Y 5 B LYS 60 B LYS 60 1 Y 5 B ASN 61 B ASN 61 1 Y 5 B GLN 62 B GLN 62 1 Y 5 B HIS 63 B HIS 63 1 Y 5 B GLU 64 B GLU 64 1 Y 6 A HIS 54 A HIS 54 1 Y 6 A HIS 55 A HIS 55 1 Y 6 A HIS 56 A HIS 56 1 Y 6 A HIS 57 A HIS 57 1 Y 6 A HIS 58 A HIS 58 1 Y 6 A HIS 59 A HIS 59 1 Y 6 A LYS 60 A LYS 60 1 Y 6 A ASN 61 A ASN 61 1 Y 6 A GLN 62 A GLN 62 1 Y 6 A HIS 63 A HIS 63 1 Y 6 A GLU 64 A GLU 64 1 Y 6 B HIS 54 B HIS 54 1 Y 6 B HIS 55 B HIS 55 1 Y 6 B HIS 56 B HIS 56 1 Y 6 B HIS 57 B HIS 57 1 Y 6 B HIS 58 B HIS 58 1 Y 6 B HIS 59 B HIS 59 1 Y 6 B LYS 60 B LYS 60 1 Y 6 B ASN 61 B ASN 61 1 Y 6 B GLN 62 B GLN 62 1 Y 6 B HIS 63 B HIS 63 1 Y 6 B GLU 64 B GLU 64 1 Y 7 A HIS 54 A HIS 54 1 Y 7 A HIS 55 A HIS 55 1 Y 7 A HIS 56 A HIS 56 1 Y 7 A HIS 57 A HIS 57 1 Y 7 A HIS 58 A HIS 58 1 Y 7 A HIS 59 A HIS 59 1 Y 7 A LYS 60 A LYS 60 1 Y 7 A ASN 61 A ASN 61 1 Y 7 A GLN 62 A GLN 62 1 Y 7 A HIS 63 A HIS 63 1 Y 7 A GLU 64 A GLU 64 1 Y 7 B HIS 54 B HIS 54 1 Y 7 B HIS 55 B HIS 55 1 Y 7 B HIS 56 B HIS 56 1 Y 7 B HIS 57 B HIS 57 1 Y 7 B HIS 58 B HIS 58 1 Y 7 B HIS 59 B HIS 59 1 Y 7 B LYS 60 B LYS 60 1 Y 7 B ASN 61 B ASN 61 1 Y 7 B GLN 62 B GLN 62 1 Y 7 B HIS 63 B HIS 63 1 Y 7 B GLU 64 B GLU 64 1 Y 8 A HIS 54 A HIS 54 1 Y 8 A HIS 55 A HIS 55 1 Y 8 A HIS 56 A HIS 56 1 Y 8 A HIS 57 A HIS 57 1 Y 8 A HIS 58 A HIS 58 1 Y 8 A HIS 59 A HIS 59 1 Y 8 A LYS 60 A LYS 60 1 Y 8 A ASN 61 A ASN 61 1 Y 8 A GLN 62 A GLN 62 1 Y 8 A HIS 63 A HIS 63 1 Y 8 A GLU 64 A GLU 64 1 Y 8 B HIS 54 B HIS 54 1 Y 8 B HIS 55 B HIS 55 1 Y 8 B HIS 56 B HIS 56 1 Y 8 B HIS 57 B HIS 57 1 Y 8 B HIS 58 B HIS 58 1 Y 8 B HIS 59 B HIS 59 1 Y 8 B LYS 60 B LYS 60 1 Y 8 B ASN 61 B ASN 61 1 Y 8 B GLN 62 B GLN 62 1 Y 8 B HIS 63 B HIS 63 1 Y 8 B GLU 64 B GLU 64 1 Y 9 A HIS 54 A HIS 54 1 Y 9 A HIS 55 A HIS 55 1 Y 9 A HIS 56 A HIS 56 1 Y 9 A HIS 57 A HIS 57 1 Y 9 A HIS 58 A HIS 58 1 Y 9 A HIS 59 A HIS 59 1 Y 9 A LYS 60 A LYS 60 1 Y 9 A ASN 61 A ASN 61 1 Y 9 A GLN 62 A GLN 62 1 Y 9 A HIS 63 A HIS 63 1 Y 9 A GLU 64 A GLU 64 1 Y 9 B HIS 54 B HIS 54 1 Y 9 B HIS 55 B HIS 55 1 Y 9 B HIS 56 B HIS 56 1 Y 9 B HIS 57 B HIS 57 1 Y 9 B HIS 58 B HIS 58 1 Y 9 B HIS 59 B HIS 59 1 Y 9 B LYS 60 B LYS 60 1 Y 9 B ASN 61 B ASN 61 1 Y 9 B GLN 62 B GLN 62 1 Y 9 B HIS 63 B HIS 63 1 Y 9 B GLU 64 B GLU 64 1 Y 10 A HIS 54 A HIS 54 1 Y 10 A HIS 55 A HIS 55 1 Y 10 A HIS 56 A HIS 56 1 Y 10 A HIS 57 A HIS 57 1 Y 10 A HIS 58 A HIS 58 1 Y 10 A HIS 59 A HIS 59 1 Y 10 A LYS 60 A LYS 60 1 Y 10 A ASN 61 A ASN 61 1 Y 10 A GLN 62 A GLN 62 1 Y 10 A HIS 63 A HIS 63 1 Y 10 A GLU 64 A GLU 64 1 Y 10 B HIS 54 B HIS 54 1 Y 10 B HIS 55 B HIS 55 1 Y 10 B HIS 56 B HIS 56 1 Y 10 B HIS 57 B HIS 57 1 Y 10 B HIS 58 B HIS 58 1 Y 10 B HIS 59 B HIS 59 1 Y 10 B LYS 60 B LYS 60 1 Y 10 B ASN 61 B ASN 61 1 Y 10 B GLN 62 B GLN 62 1 Y 10 B HIS 63 B HIS 63 1 Y 10 B GLU 64 B GLU 64 1 Y 11 A HIS 54 A HIS 54 1 Y 11 A HIS 55 A HIS 55 1 Y 11 A HIS 56 A HIS 56 1 Y 11 A HIS 57 A HIS 57 1 Y 11 A HIS 58 A HIS 58 1 Y 11 A HIS 59 A HIS 59 1 Y 11 A LYS 60 A LYS 60 1 Y 11 A ASN 61 A ASN 61 1 Y 11 A GLN 62 A GLN 62 1 Y 11 A HIS 63 A HIS 63 1 Y 11 A GLU 64 A GLU 64 1 Y 11 B HIS 54 B HIS 54 1 Y 11 B HIS 55 B HIS 55 1 Y 11 B HIS 56 B HIS 56 1 Y 11 B HIS 57 B HIS 57 1 Y 11 B HIS 58 B HIS 58 1 Y 11 B HIS 59 B HIS 59 1 Y 11 B LYS 60 B LYS 60 1 Y 11 B ASN 61 B ASN 61 1 Y 11 B GLN 62 B GLN 62 1 Y 11 B HIS 63 B HIS 63 1 Y 11 B GLU 64 B GLU 64 1 Y 12 A HIS 54 A HIS 54 1 Y 12 A HIS 55 A HIS 55 1 Y 12 A HIS 56 A HIS 56 1 Y 12 A HIS 57 A HIS 57 1 Y 12 A HIS 58 A HIS 58 1 Y 12 A HIS 59 A HIS 59 1 Y 12 A LYS 60 A LYS 60 1 Y 12 A ASN 61 A ASN 61 1 Y 12 A GLN 62 A GLN 62 1 Y 12 A HIS 63 A HIS 63 1 Y 12 A GLU 64 A GLU 64 1 Y 12 B HIS 54 B HIS 54 1 Y 12 B HIS 55 B HIS 55 1 Y 12 B HIS 56 B HIS 56 1 Y 12 B HIS 57 B HIS 57 1 Y 12 B HIS 58 B HIS 58 1 Y 12 B HIS 59 B HIS 59 1 Y 12 B LYS 60 B LYS 60 1 Y 12 B ASN 61 B ASN 61 1 Y 12 B GLN 62 B GLN 62 1 Y 12 B HIS 63 B HIS 63 1 Y 12 B GLU 64 B GLU 64 1 Y 13 A HIS 54 A HIS 54 1 Y 13 A HIS 55 A HIS 55 1 Y 13 A HIS 56 A HIS 56 1 Y 13 A HIS 57 A HIS 57 1 Y 13 A HIS 58 A HIS 58 1 Y 13 A HIS 59 A HIS 59 1 Y 13 A LYS 60 A LYS 60 1 Y 13 A ASN 61 A ASN 61 1 Y 13 A GLN 62 A GLN 62 1 Y 13 A HIS 63 A HIS 63 1 Y 13 A GLU 64 A GLU 64 1 Y 13 B HIS 54 B HIS 54 1 Y 13 B HIS 55 B HIS 55 1 Y 13 B HIS 56 B HIS 56 1 Y 13 B HIS 57 B HIS 57 1 Y 13 B HIS 58 B HIS 58 1 Y 13 B HIS 59 B HIS 59 1 Y 13 B LYS 60 B LYS 60 1 Y 13 B ASN 61 B ASN 61 1 Y 13 B GLN 62 B GLN 62 1 Y 13 B HIS 63 B HIS 63 1 Y 13 B GLU 64 B GLU 64 1 Y 1 A ARG 13 0.258 SIDE CHAIN 1 A ARG 16 0.284 SIDE CHAIN 1 A ARG 23 0.283 SIDE CHAIN 1 A ARG 31 0.309 SIDE CHAIN 1 A ARG 40 0.214 SIDE CHAIN 1 A ARG 50 0.251 SIDE CHAIN 1 B ARG 13 0.258 SIDE CHAIN 1 B ARG 16 0.285 SIDE CHAIN 1 B ARG 23 0.283 SIDE CHAIN 1 B ARG 31 0.307 SIDE CHAIN 1 B ARG 40 0.214 SIDE CHAIN 1 B ARG 50 0.251 SIDE CHAIN 2 A ARG 13 0.218 SIDE CHAIN 2 A ARG 16 0.213 SIDE CHAIN 2 A ARG 23 0.247 SIDE CHAIN 2 A ARG 31 0.243 SIDE CHAIN 2 A ARG 40 0.293 SIDE CHAIN 2 A ARG 50 0.186 SIDE CHAIN 2 B ARG 13 0.219 SIDE CHAIN 2 B ARG 16 0.213 SIDE CHAIN 2 B ARG 23 0.247 SIDE CHAIN 2 B ARG 31 0.243 SIDE CHAIN 2 B ARG 40 0.293 SIDE CHAIN 2 B ARG 50 0.187 SIDE CHAIN 3 A ARG 13 0.239 SIDE CHAIN 3 A ARG 16 0.207 SIDE CHAIN 3 A ARG 23 0.317 SIDE CHAIN 3 A ARG 31 0.316 SIDE CHAIN 3 A ARG 40 0.312 SIDE CHAIN 3 A ARG 50 0.261 SIDE CHAIN 3 B ARG 13 0.239 SIDE CHAIN 3 B ARG 16 0.205 SIDE CHAIN 3 B ARG 23 0.317 SIDE CHAIN 3 B ARG 31 0.316 SIDE CHAIN 3 B ARG 40 0.312 SIDE CHAIN 3 B ARG 50 0.262 SIDE CHAIN 4 A ARG 13 0.233 SIDE CHAIN 4 A ARG 16 0.314 SIDE CHAIN 4 A ARG 23 0.205 SIDE CHAIN 4 A ARG 31 0.318 SIDE CHAIN 4 A ARG 40 0.258 SIDE CHAIN 4 A ARG 50 0.238 SIDE CHAIN 4 B ARG 13 0.232 SIDE CHAIN 4 B ARG 16 0.315 SIDE CHAIN 4 B ARG 23 0.206 SIDE CHAIN 4 B ARG 31 0.317 SIDE CHAIN 4 B ARG 40 0.258 SIDE CHAIN 4 B ARG 50 0.239 SIDE CHAIN 5 A ARG 13 0.296 SIDE CHAIN 5 A ARG 16 0.286 SIDE CHAIN 5 A ARG 23 0.252 SIDE CHAIN 5 A ARG 31 0.316 SIDE CHAIN 5 A ARG 40 0.239 SIDE CHAIN 5 A ARG 50 0.293 SIDE CHAIN 5 B ARG 13 0.297 SIDE CHAIN 5 B ARG 16 0.285 SIDE CHAIN 5 B ARG 23 0.252 SIDE CHAIN 5 B ARG 31 0.317 SIDE CHAIN 5 B ARG 40 0.239 SIDE CHAIN 5 B ARG 50 0.292 SIDE CHAIN 6 A ARG 13 0.304 SIDE CHAIN 6 A ARG 16 0.162 SIDE CHAIN 6 A ARG 23 0.264 SIDE CHAIN 6 A ARG 31 0.300 SIDE CHAIN 6 A ARG 40 0.287 SIDE CHAIN 6 A ARG 50 0.263 SIDE CHAIN 6 B ARG 13 0.303 SIDE CHAIN 6 B ARG 16 0.161 SIDE CHAIN 6 B ARG 23 0.263 SIDE CHAIN 6 B ARG 31 0.302 SIDE CHAIN 6 B ARG 40 0.287 SIDE CHAIN 6 B ARG 50 0.264 SIDE CHAIN 7 A ARG 13 0.310 SIDE CHAIN 7 A ARG 16 0.286 SIDE CHAIN 7 A ARG 23 0.211 SIDE CHAIN 7 A ARG 31 0.310 SIDE CHAIN 7 A ARG 40 0.315 SIDE CHAIN 7 A ARG 50 0.219 SIDE CHAIN 7 B ARG 13 0.310 SIDE CHAIN 7 B ARG 16 0.286 SIDE CHAIN 7 B ARG 23 0.211 SIDE CHAIN 7 B ARG 31 0.311 SIDE CHAIN 7 B ARG 40 0.315 SIDE CHAIN 7 B ARG 50 0.223 SIDE CHAIN 8 A ARG 13 0.280 SIDE CHAIN 8 A ARG 16 0.274 SIDE CHAIN 8 A ARG 23 0.300 SIDE CHAIN 8 A ARG 31 0.308 SIDE CHAIN 8 A ARG 40 0.278 SIDE CHAIN 8 A ARG 50 0.197 SIDE CHAIN 8 B ARG 13 0.280 SIDE CHAIN 8 B ARG 16 0.273 SIDE CHAIN 8 B ARG 23 0.299 SIDE CHAIN 8 B ARG 31 0.308 SIDE CHAIN 8 B ARG 40 0.277 SIDE CHAIN 8 B ARG 50 0.198 SIDE CHAIN 9 A ARG 13 0.196 SIDE CHAIN 9 A ARG 16 0.206 SIDE CHAIN 9 A ARG 23 0.261 SIDE CHAIN 9 A ARG 31 0.312 SIDE CHAIN 9 A ARG 40 0.284 SIDE CHAIN 9 A ARG 50 0.305 SIDE CHAIN 9 B ARG 13 0.197 SIDE CHAIN 9 B ARG 16 0.206 SIDE CHAIN 9 B ARG 23 0.261 SIDE CHAIN 9 B ARG 31 0.313 SIDE CHAIN 9 B ARG 40 0.284 SIDE CHAIN 9 B ARG 50 0.305 SIDE CHAIN 10 A ARG 13 0.252 SIDE CHAIN 10 A ARG 16 0.254 SIDE CHAIN 10 A ARG 23 0.318 SIDE CHAIN 10 A ARG 31 0.159 SIDE CHAIN 10 A ARG 40 0.230 SIDE CHAIN 10 A ARG 50 0.291 SIDE CHAIN 10 B ARG 13 0.253 SIDE CHAIN 10 B ARG 16 0.253 SIDE CHAIN 10 B ARG 23 0.317 SIDE CHAIN 10 B ARG 31 0.160 SIDE CHAIN 10 B ARG 40 0.230 SIDE CHAIN 10 B ARG 50 0.290 SIDE CHAIN 11 A ARG 13 0.287 SIDE CHAIN 11 A ARG 16 0.317 SIDE CHAIN 11 A ARG 23 0.279 SIDE CHAIN 11 A ARG 31 0.316 SIDE CHAIN 11 A ARG 40 0.238 SIDE CHAIN 11 A ARG 50 0.188 SIDE CHAIN 11 B ARG 13 0.286 SIDE CHAIN 11 B ARG 16 0.319 SIDE CHAIN 11 B ARG 23 0.278 SIDE CHAIN 11 B ARG 31 0.317 SIDE CHAIN 11 B ARG 40 0.239 SIDE CHAIN 11 B ARG 50 0.188 SIDE CHAIN 12 A ARG 13 0.241 SIDE CHAIN 12 A ARG 16 0.310 SIDE CHAIN 12 A ARG 23 0.295 SIDE CHAIN 12 A ARG 31 0.290 SIDE CHAIN 12 A ARG 40 0.315 SIDE CHAIN 12 A ARG 50 0.263 SIDE CHAIN 12 B ARG 13 0.242 SIDE CHAIN 12 B ARG 16 0.310 SIDE CHAIN 12 B ARG 23 0.296 SIDE CHAIN 12 B ARG 31 0.290 SIDE CHAIN 12 B ARG 40 0.315 SIDE CHAIN 12 B ARG 50 0.263 SIDE CHAIN 13 A ARG 13 0.313 SIDE CHAIN 13 A ARG 16 0.291 SIDE CHAIN 13 A ARG 23 0.280 SIDE CHAIN 13 A ARG 31 0.310 SIDE CHAIN 13 A ARG 40 0.262 SIDE CHAIN 13 A ARG 50 0.255 SIDE CHAIN 13 B ARG 13 0.312 SIDE CHAIN 13 B ARG 16 0.291 SIDE CHAIN 13 B ARG 23 0.280 SIDE CHAIN 13 B ARG 31 0.311 SIDE CHAIN 13 B ARG 40 0.267 SIDE CHAIN 13 B ARG 50 0.255 SIDE CHAIN 2 A MET 4 55.42 -89.76 2 A ARG 31 -174.73 -162.91 2 B MET 4 55.10 -89.67 2 B ARG 31 -175.01 -163.27 3 A LYS 2 53.06 94.44 3 A SER 5 -62.76 -179.30 3 A LYS 6 -73.67 -162.35 3 A ARG 31 -133.44 -155.18 3 B LYS 2 52.96 94.66 3 B SER 5 -62.82 -179.22 3 B LYS 6 -73.66 -162.14 3 B ARG 31 -133.53 -155.69 4 A SER 5 -69.38 -179.39 4 A LEU 11 -98.52 31.65 4 A ARG 31 -116.53 -162.84 4 B SER 5 -69.46 -179.19 4 B LEU 11 -98.37 31.62 4 B ARG 31 -116.65 -162.64 5 A LYS 2 -171.69 71.81 5 A SER 5 53.19 179.69 5 A MET 7 57.87 162.26 5 A ARG 31 -114.15 -156.53 5 A ILE 51 -104.93 -167.90 5 B LYS 2 -171.53 72.20 5 B SER 5 53.05 179.66 5 B MET 7 57.69 162.52 5 B ARG 31 -114.39 -156.88 5 B ILE 51 -104.63 -168.27 6 A LYS 6 -156.65 69.52 6 A ARG 31 -131.73 -158.97 6 B LYS 6 -156.58 69.52 6 B ARG 31 -132.09 -159.06 7 A LYS 2 -172.53 131.02 7 A MET 4 54.28 -157.96 7 A LYS 6 -68.69 -163.07 7 A ARG 31 -121.17 -164.58 7 B LYS 2 -172.67 130.95 7 B MET 4 54.17 -158.16 7 B LYS 6 -68.83 -162.92 7 B ARG 31 -121.20 -164.57 8 A ARG 31 -141.50 -154.89 8 A ILE 51 -90.83 -63.51 8 B ARG 31 -141.53 -154.88 8 B ILE 51 -90.97 -63.21 9 A LYS 2 -101.12 47.12 9 A MET 4 -126.49 -59.77 9 A SER 5 -150.16 23.88 9 A LEU 11 -93.77 30.21 9 A ILE 51 -128.19 -169.16 9 B LYS 2 -100.97 47.15 9 B MET 4 -126.87 -59.47 9 B SER 5 -150.46 23.90 9 B LEU 11 -94.05 30.31 9 B ILE 51 -127.96 -168.91 10 A MET 4 -103.67 -162.78 10 A ARG 31 -141.96 -154.01 10 B MET 4 -103.66 -162.89 10 B ARG 31 -142.60 -154.19 11 A ARG 31 -159.33 -158.58 11 B ARG 31 -159.35 -158.68 12 A LYS 6 53.41 -162.19 12 A MET 7 56.20 104.37 12 A ARG 31 -169.33 -159.19 12 B LYS 6 53.31 -162.07 12 B MET 7 56.13 104.38 12 B ARG 31 -169.36 -159.19 13 A LYS 6 -148.57 47.73 13 A ARG 31 -129.19 -158.02 13 A ILE 51 -114.57 -163.11 13 B LYS 6 -148.58 47.97 13 B ARG 31 -129.33 -157.85 13 B ILE 51 -114.70 -162.89 Solution Structure of Switch Arc, a Mutant with 3(10) Helices Replacing a Wild-Type Beta-Ribbon 1 N N 1 N N A PRO 8 A PRO 8 HELX_P A ARG 13 A ARG 13 5 1 6 A PRO 15 A PRO 15 HELX_P A GLY 30 A GLY 30 1 2 16 A SER 32 A SER 32 HELX_P A GLY 49 A GLY 49 1 3 18 B PRO 8 B PRO 8 HELX_P B ARG 13 B ARG 13 5 4 6 B PRO 15 B PRO 15 HELX_P B GLY 30 B GLY 30 1 5 16 B SER 32 B SER 32 HELX_P B GLY 49 B GLY 49 1 6 18 TRANSCRIPTION 3(10) helix, beta-ribbon, beta-sheet, structural switching, TRANSCRIPTION RARC_BPP22 UNP 1 1 P03050 MKGMSKMPQFNLRWPREVLDLVRKVAEENGRSVNSEIYQRVMESFKKEGRIGA 1 53 1NLA 1 53 P03050 A 1 1 53 1 53 1NLA 1 53 P03050 B 1 1 53 1 ASN engineered mutation LEU 11 1NLA A P03050 UNP 11 11 1 LEU engineered mutation ASN 12 1NLA A P03050 UNP 12 12 1 expression tag HIS 54 1NLA A P03050 UNP 54 1 expression tag HIS 55 1NLA A P03050 UNP 55 1 expression tag HIS 56 1NLA A P03050 UNP 56 1 expression tag HIS 57 1NLA A P03050 UNP 57 1 expression tag HIS 58 1NLA A P03050 UNP 58 1 expression tag HIS 59 1NLA A P03050 UNP 59 1 expression tag LYS 60 1NLA A P03050 UNP 60 1 expression tag ASN 61 1NLA A P03050 UNP 61 1 expression tag GLN 62 1NLA A P03050 UNP 62 1 expression tag HIS 63 1NLA A P03050 UNP 63 1 expression tag GLU 64 1NLA A P03050 UNP 64 2 ASN engineered mutation LEU 11 1NLA B P03050 UNP 11 11 2 LEU engineered mutation ASN 12 1NLA B P03050 UNP 12 12 2 expression tag HIS 54 1NLA B P03050 UNP 54 2 expression tag HIS 55 1NLA B P03050 UNP 55 2 expression tag HIS 56 1NLA B P03050 UNP 56 2 expression tag HIS 57 1NLA B P03050 UNP 57 2 expression tag HIS 58 1NLA B P03050 UNP 58 2 expression tag HIS 59 1NLA B P03050 UNP 59 2 expression tag LYS 60 1NLA B P03050 UNP 60 2 expression tag ASN 61 1NLA B P03050 UNP 61 2 expression tag GLN 62 1NLA B P03050 UNP 62 2 expression tag HIS 63 1NLA B P03050 UNP 63 2 expression tag GLU 64 1NLA B P03050 UNP 64 1 P 1