1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 Byeon, I.J. Louis, J.M. Gronenborn, A.M. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic C3 H7 N O2 89.093 y ALANINE 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 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 C4 H9 N O3 119.119 y THREONINE 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 333 141 152 10.1016/S0022-2836(03)00928-8 14516749 A Protein Contortionist: Core Mutations of GB1 that Induce Dimerization and Domain Swapping 2003 US Science SCIEAS 0038 0036-8075 253 657 661 A Novel, Highly Stable Fold of the Immunoglobulin Binding Domain of Streptococcal Protein G 1991 US Nat.Struct.Biol. NSBIEW 2024 1072-8368 9 877 885 Core Mutations Switch Monomeric Protein GB1 Into an Intertwined Tetramer 2002 10.2210/pdb1q10/pdb pdb_00001q10 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 6226.835 Immunoglobulin G binding protein G B1 Domain T228Q,L231V,F256V,Y259F,A260F 2 man polymer IgG binding protein G no no MQYKVILNGKTLKGETTTEAVDAATAEKVVKQFFNDNGVDGEWTYDDATKTFTVTE MQYKVILNGKTLKGETTTEAVDAATAEKVVKQFFNDNGVDGEWTYDDATKTFTVTE 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 Streptococcus Escherichia sample SPG 1320 Streptococcus sp. 'group G' 562 Escherichia coli HMS174(DE3) Plasmid pET11A 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 2003-10-14 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 The Monomeric Wildtype Protein The Tetrameric Mutant Protein RCSB Y RCSB 2003-07-18 REL REL The structure was determined using triple-resonance NMR spectroscopy. structures with the lowest energy,target function 100 40 3D_13C-separated_NOESY 3D_15N-separated_NOESY 3D_13C-separated/12C-filtered_NOESY 3D_13C-separated/12C-filtered_NOESY 2D NOESY 2D NOESY 50mM sodium phosphate buffer 5.5 ambient 298 K The structures are based on a total of 1311 constraints per monomeric subunit: 1035 NOE-derived distance constraints, 72 hydrogen bond distance constraints, 148 dihedral angle constraints, and 56 residual N-H dipolar coupling constraints. simulated annealing 1 minimized average structure 1.7mM (in monomer) U-15N,13C, 50mM phosphate buffer, 0.02% NaN3, 92.5% H2O, 7.5% D2O 92.5% H2O, 7.5% D2O 0.85mM (in monomer) U-15N,13C, 0.85mM (in monomer) unlabeled, 50mM phosphate buffer (pH 5.5), 0.02 % NaN3, 92.5% H2O, 7.5% D2O 92.5% H2O, 7.5% D2O 0.85mM (in monomer) U-15N,13C, 0.85mM (in monomer) unlabeled, 50mM phosphate buffer, 0.02% NaN3, 100% D2O 100% D2O 1.7mM (in monomer) unlabeled, 50mM phosphate buffer, 0.02% NaN3, 92.5% H2O, 7.5% D2O 92.5% H2O, 7.5% D2O 1.7mM (in monomer) unlabeled, 50mM phosphate buffer, 0.02% NaN3, 100% D2O 100% D2O Bruker collection XwinNMR 2.6 and 3.1 Delaglio processing NMRPipe 2.2 Garrett data analysis PIPP 4.3.2 Brunger structure solution CNS 1.1 Brunger refinement CNS 1.1 800 Bruker DRX 750 Bruker DMX 600 Bruker DRX 600 Bruker DMX 500 Bruker DMX MET 1 n 1 MET 1 A GLN 2 n 2 GLN 2 A TYR 3 n 3 TYR 3 A LYS 4 n 4 LYS 4 A VAL 5 n 5 VAL 5 A ILE 6 n 6 ILE 6 A LEU 7 n 7 LEU 7 A ASN 8 n 8 ASN 8 A GLY 9 n 9 GLY 9 A LYS 10 n 10 LYS 10 A THR 11 n 11 THR 11 A LEU 12 n 12 LEU 12 A LYS 13 n 13 LYS 13 A GLY 14 n 14 GLY 14 A GLU 15 n 15 GLU 15 A THR 16 n 16 THR 16 A THR 17 n 17 THR 17 A THR 18 n 18 THR 18 A GLU 19 n 19 GLU 19 A ALA 20 n 20 ALA 20 A VAL 21 n 21 VAL 21 A ASP 22 n 22 ASP 22 A ALA 23 n 23 ALA 23 A ALA 24 n 24 ALA 24 A THR 25 n 25 THR 25 A ALA 26 n 26 ALA 26 A GLU 27 n 27 GLU 27 A LYS 28 n 28 LYS 28 A VAL 29 n 29 VAL 29 A VAL 30 n 30 VAL 30 A LYS 31 n 31 LYS 31 A GLN 32 n 32 GLN 32 A PHE 33 n 33 PHE 33 A PHE 34 n 34 PHE 34 A ASN 35 n 35 ASN 35 A ASP 36 n 36 ASP 36 A ASN 37 n 37 ASN 37 A GLY 38 n 38 GLY 38 A VAL 39 n 39 VAL 39 A ASP 40 n 40 ASP 40 A GLY 41 n 41 GLY 41 A GLU 42 n 42 GLU 42 A TRP 43 n 43 TRP 43 A THR 44 n 44 THR 44 A TYR 45 n 45 TYR 45 A ASP 46 n 46 ASP 46 A ASP 47 n 47 ASP 47 A ALA 48 n 48 ALA 48 A THR 49 n 49 THR 49 A LYS 50 n 50 LYS 50 A THR 51 n 51 THR 51 A PHE 52 n 52 PHE 52 A THR 53 n 53 THR 53 A VAL 54 n 54 VAL 54 A THR 55 n 55 THR 55 A GLU 56 n 56 GLU 56 A MET 1 n 1 MET 1 B GLN 2 n 2 GLN 2 B TYR 3 n 3 TYR 3 B LYS 4 n 4 LYS 4 B VAL 5 n 5 VAL 5 B ILE 6 n 6 ILE 6 B LEU 7 n 7 LEU 7 B ASN 8 n 8 ASN 8 B GLY 9 n 9 GLY 9 B LYS 10 n 10 LYS 10 B THR 11 n 11 THR 11 B LEU 12 n 12 LEU 12 B LYS 13 n 13 LYS 13 B GLY 14 n 14 GLY 14 B GLU 15 n 15 GLU 15 B THR 16 n 16 THR 16 B THR 17 n 17 THR 17 B THR 18 n 18 THR 18 B GLU 19 n 19 GLU 19 B ALA 20 n 20 ALA 20 B VAL 21 n 21 VAL 21 B ASP 22 n 22 ASP 22 B ALA 23 n 23 ALA 23 B ALA 24 n 24 ALA 24 B THR 25 n 25 THR 25 B ALA 26 n 26 ALA 26 B GLU 27 n 27 GLU 27 B LYS 28 n 28 LYS 28 B VAL 29 n 29 VAL 29 B VAL 30 n 30 VAL 30 B LYS 31 n 31 LYS 31 B GLN 32 n 32 GLN 32 B PHE 33 n 33 PHE 33 B PHE 34 n 34 PHE 34 B ASN 35 n 35 ASN 35 B ASP 36 n 36 ASP 36 B ASN 37 n 37 ASN 37 B GLY 38 n 38 GLY 38 B VAL 39 n 39 VAL 39 B ASP 40 n 40 ASP 40 B GLY 41 n 41 GLY 41 B GLU 42 n 42 GLU 42 B TRP 43 n 43 TRP 43 B THR 44 n 44 THR 44 B TYR 45 n 45 TYR 45 B ASP 46 n 46 ASP 46 B ASP 47 n 47 ASP 47 B ALA 48 n 48 ALA 48 B THR 49 n 49 THR 49 B LYS 50 n 50 LYS 50 B THR 51 n 51 THR 51 B PHE 52 n 52 PHE 52 B THR 53 n 53 THR 53 B VAL 54 n 54 VAL 54 B THR 55 n 55 THR 55 B GLU 56 n 56 GLU 56 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 A N THR 44 A N THR 44 A O THR 53 A O THR 53 A N PHE 52 A N PHE 52 B O ILE 6 B O ILE 6 B N VAL 5 B N VAL 5 B O THR 16 B O THR 16 B O LYS 13 B O LYS 13 A N THR 17 A N THR 17 A O THR 16 A O THR 16 A N VAL 5 A N VAL 5 A N ILE 6 A N ILE 6 B O PHE 52 B O PHE 52 B O THR 53 B O THR 53 B N THR 44 B N THR 44 1 A B H O ILE PHE 6 52 1.57 1 A B O H PHE ILE 52 6 1.57 1 B B OD1 H ASP THR 22 25 1.58 1 A A OD1 H ASP THR 22 25 1.58 1 A A O H PHE GLY 34 38 1.60 2 A B H O ILE PHE 6 52 1.53 2 A B O H PHE ILE 52 6 1.53 2 A A H3 O MET ALA 1 20 1.58 2 B B H3 O MET ALA 1 20 1.58 3 A B O H PHE ILE 52 6 1.55 3 A B H O ILE PHE 6 52 1.55 3 A A OD1 H ASP THR 22 25 1.58 3 B B OD1 H ASP THR 22 25 1.58 4 A A OD1 H ASP THR 22 25 1.59 4 B B OD1 H ASP THR 22 25 1.59 4 A A O H ALA GLU 23 27 1.60 4 B B O H ALA GLU 23 27 1.60 5 A B H O ILE PHE 6 52 1.55 5 A B O H PHE ILE 52 6 1.55 6 A A O H ALA GLU 23 27 1.58 6 B B O H ALA GLU 23 27 1.58 7 A A OD1 H ASP THR 22 25 1.58 7 B B OD1 H ASP THR 22 25 1.58 7 A B H O THR LYS 17 13 1.58 7 A B O H LYS THR 13 17 1.58 7 A B O H GLU GLU 15 15 1.59 7 A B H O GLU GLU 15 15 1.59 7 A B O H PHE ILE 52 6 1.60 7 A B H O ILE PHE 6 52 1.60 8 A B O H LYS THR 13 17 1.59 8 A B H O THR LYS 17 13 1.59 10 A B H O ILE PHE 6 52 1.54 10 A B O H PHE ILE 52 6 1.54 10 B B OD1 H ASP THR 22 25 1.57 10 A A OD1 H ASP THR 22 25 1.57 11 A B H O ILE PHE 6 52 1.55 11 A B O H PHE ILE 52 6 1.55 12 A B H O ILE PHE 6 52 1.54 12 A B O H PHE ILE 52 6 1.54 12 B B O H PHE GLY 34 38 1.58 12 A A O H PHE GLY 34 38 1.58 13 A B O H PHE ILE 52 6 1.53 13 A B H O ILE PHE 6 52 1.53 14 A B H O ILE PHE 6 52 1.56 14 A B O H PHE ILE 52 6 1.56 14 A A OD1 H ASP THR 22 25 1.56 14 B B OD1 H ASP THR 22 25 1.57 15 A B O H PHE ILE 52 6 1.57 15 A B H O ILE PHE 6 52 1.57 15 A A OD1 H ASP THR 22 25 1.57 15 B B OD1 H ASP THR 22 25 1.57 15 B B H O VAL THR 5 16 1.59 15 A A H O VAL THR 5 16 1.59 16 B B OD1 H ASP THR 22 25 1.57 16 A A OD1 H ASP THR 22 25 1.57 17 A B H O ILE PHE 6 52 1.59 17 A B O H PHE ILE 52 6 1.59 17 B B OD1 H ASP THR 22 25 1.59 17 A A OD1 H ASP THR 22 25 1.60 19 A B O H PHE ILE 52 6 1.51 19 A B H O ILE PHE 6 52 1.51 19 A B H O THR LYS 17 13 1.60 19 A B O H LYS THR 13 17 1.60 19 B B O H VAL THR 5 16 1.60 19 A A O H VAL THR 5 16 1.60 20 A A HE22 OE2 GLN GLU 32 56 1.59 20 B B HE22 OE2 GLN GLU 32 56 1.59 21 A B O H PHE ILE 52 6 1.55 21 A B H O ILE PHE 6 52 1.55 21 A A O H VAL THR 5 16 1.57 21 A A OD1 H ASP THR 22 25 1.57 21 B B OD1 H ASP THR 22 25 1.57 21 B B O H VAL THR 5 16 1.57 22 B B O H VAL THR 5 16 1.57 22 A A O H VAL THR 5 16 1.57 22 A B O H LYS THR 13 17 1.60 22 A B H O THR LYS 17 13 1.60 23 A B H O ILE PHE 6 52 1.51 23 A B O H PHE ILE 52 6 1.51 23 B B O H VAL THR 5 16 1.60 23 A A O H VAL THR 5 16 1.60 24 A B O H PHE ILE 52 6 1.52 24 A B H O ILE PHE 6 52 1.52 25 B B OD1 H ASP THR 22 25 1.57 25 A A OD1 H ASP THR 22 25 1.57 26 B B O H ALA LYS 24 28 1.57 26 A A O H ALA LYS 24 28 1.57 26 A A OD1 H ASP THR 22 25 1.57 26 B B OD1 H ASP THR 22 25 1.58 27 A B H O ILE PHE 6 52 1.54 27 A B O H PHE ILE 52 6 1.54 27 B B O H VAL THR 5 16 1.59 27 A A O H VAL THR 5 16 1.59 27 A A OD1 H ASP THR 22 25 1.59 27 B B OD1 H ASP THR 22 25 1.59 28 A B O H PHE ILE 52 6 1.52 28 A B H O ILE PHE 6 52 1.52 28 B B OD1 H ASP THR 22 25 1.58 28 A A OD1 H ASP THR 22 25 1.58 29 A A OD1 H ASP THR 22 25 1.57 29 B B OD1 H ASP THR 22 25 1.57 29 A B H O THR LYS 17 13 1.58 29 A B O H LYS THR 13 17 1.59 31 A B H O ILE PHE 6 52 1.57 31 A B O H PHE ILE 52 6 1.57 31 B B O H VAL THR 5 16 1.59 31 A A O H VAL THR 5 16 1.59 31 A B H O THR LYS 17 13 1.59 31 A B O H LYS THR 13 17 1.60 32 A B H O ILE PHE 6 52 1.58 32 A B O H PHE ILE 52 6 1.58 32 A A O H VAL THR 5 16 1.60 32 B B O H VAL THR 5 16 1.60 33 A B H O ILE PHE 6 52 1.58 33 A B O H PHE ILE 52 6 1.59 34 A B O H PHE ILE 52 6 1.53 34 A B H O ILE PHE 6 52 1.53 35 A B O H LYS THR 13 17 1.58 35 A B H O THR LYS 17 13 1.58 36 B B OD1 H ASP THR 22 25 1.57 36 A A OD1 H ASP THR 22 25 1.57 37 A B H O ILE PHE 6 52 1.55 37 A B O H PHE ILE 52 6 1.55 37 B B O H PHE GLY 34 38 1.59 37 A A O H PHE GLY 34 38 1.59 38 A A H O VAL THR 5 16 1.54 38 B B H O VAL THR 5 16 1.54 38 B B O H ALA GLU 23 27 1.57 38 A A O H ALA GLU 23 27 1.57 38 A A OD1 H ASP THR 22 25 1.57 38 B B OD1 H ASP THR 22 25 1.57 38 A B H O THR LYS 17 13 1.58 38 A B O H LYS THR 13 17 1.58 39 B B OD1 H ASP THR 22 25 1.57 39 A A OD1 H ASP THR 22 25 1.57 40 A B H O ILE PHE 6 52 1.51 40 A B O H PHE ILE 52 6 1.51 40 A A OD1 H ASP THR 22 25 1.57 40 B B OD1 H ASP THR 22 25 1.57 40 B B O H ALA GLU 23 27 1.60 40 A A O H ALA GLU 23 27 1.60 27 A PHE 33 -51.61 -72.21 27 B PHE 33 -51.57 -72.32 minimized average Ensemble of 40 Structures of the Dimeric Mutant of the B1 Domain of Streptococcal Protein G 1 N N 1 N N A ASP 22 A ASP 22 HELX_P A GLY 38 A GLY 38 1 1 17 A ASP 47 A ASP 47 HELX_P A THR 49 A THR 49 5 2 3 B ASP 22 B ASP 22 HELX_P B GLY 38 B GLY 38 1 3 17 B ASP 47 B ASP 47 HELX_P B THR 49 B THR 49 5 4 3 PROTEIN BINDING GB1, core mutants, domain-swapping, oligomerization, PROTEIN BINDING SPG1_STRSG UNP 1 228 P06654 TYKLILNGKTLKGETTTEAVDAATAEKVFKQYANDNGVDGEWTYDDATKTFTVTE 228 282 1Q10 2 56 P06654 A 1 2 56 228 282 1Q10 2 56 P06654 B 1 2 56 1 initiating methionine MET 1 1Q10 A P06654 UNP 1 1 THR engineered mutation GLN 2 1Q10 A P06654 UNP 228 2 1 LEU engineered mutation VAL 5 1Q10 A P06654 UNP 231 5 1 PHE engineered mutation VAL 30 1Q10 A P06654 UNP 256 30 1 TYR engineered mutation PHE 33 1Q10 A P06654 UNP 259 33 1 ALA engineered mutation PHE 34 1Q10 A P06654 UNP 260 34 2 initiating methionine MET 1 1Q10 B P06654 UNP 1 2 THR engineered mutation GLN 2 1Q10 B P06654 UNP 228 2 2 LEU engineered mutation VAL 5 1Q10 B P06654 UNP 231 5 2 PHE engineered mutation VAL 30 1Q10 B P06654 UNP 256 30 2 TYR engineered mutation PHE 33 1Q10 B P06654 UNP 259 33 2 ALA engineered mutation PHE 34 1Q10 B P06654 UNP 260 34 8 anti-parallel parallel anti-parallel anti-parallel anti-parallel parallel anti-parallel A GLU 42 A GLU 42 A ASP 46 A ASP 46 A THR 51 A THR 51 A THR 55 A THR 55 B GLN 2 B GLN 2 B ASN 8 B ASN 8 B LEU 12 B LEU 12 B GLU 19 B GLU 19 A LEU 12 A LEU 12 A GLU 19 A GLU 19 A GLN 2 A GLN 2 A ASN 8 A ASN 8 B THR 51 B THR 51 B THR 55 B THR 55 B GLU 42 B GLU 42 B ASP 46 B ASP 46