0.026376 0.000000 0.010300 0.000000 0.110632 0.000000 0.000000 0.000000 0.029009 0.00000 0.00000 0.00000 2.51340 1.74867 1.72398 31.80534 0.44561 10.58317 0.0 3-Gaussian fit: Grosse-Kunstleve RW, Sauter NK, Adams PD: Newsletter of the IUCr Commission on Crystallographic Computing 2004, 3, 22-31. 0.53795 0.34799 0.11320 10.08003 29.74760 2.57510 0.0 3-Gaussian fit: Grosse-Kunstleve RW, Sauter NK, Adams PD: Newsletter of the IUCr Commission on Crystallographic Computing 2004, 3, 22-31. 2.99955 2.25584 1.72788 23.27268 7.45433 0.31622 0.0 3-Gaussian fit: Grosse-Kunstleve RW, Sauter NK, Adams PD: Newsletter of the IUCr Commission on Crystallographic Computing 2004, 3, 22-31. 4.49882 3.47563 15.80542 1.70748 0.0 2-Gaussian fit: Grosse-Kunstleve RW, Sauter NK, Adams PD: Newsletter of the IUCr Commission on Crystallographic Computing 2004, 3, 22-31. 0000-0002-5836-6772 Ganatra, P. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 4 90.000 111.330 90.000 37.913 9.039 37.007 11813.421 C4 H9 N O2 103.120 n ALPHA-AMINOISOBUTYRIC ACID L-peptide linking C3 H7 N O2 89.093 y ALANINE L-peptide linking C2 H3 N 41.052 ACETONITRILE non-polymer C5 H10 N2 O3 146.144 y GLUTAMINE L-peptide linking C2 H5 N O2 75.067 y GLYCINE peptide linking H2 O 18.015 WATER non-polymer C6 H13 N O2 131.173 y LEUCINE L-peptide linking H2 N 16.023 AMINO GROUP non-polymer C9 H11 N O2 165.189 y PHENYLALANINE L-peptide linking C13 H10 O2 198.217 biphenyl-4-carboxylic acid non-polymer N 1 N N N 2 N C N 3 N C N 4 N O N 5 N O N 6 N C N 7 N C N 8 N H N 9 N H N 10 N H N 11 N H N 12 N H N 13 N H N 14 N H N 15 N H N 16 N H N 17 N N N 18 S C N 19 N C N 20 N O N 21 N C N 22 N O N 23 N H N 24 N H N 25 N H N 26 N H N 27 N H N 28 N H N 29 N H N 30 N N N 31 N C N 32 N C N 33 N H N 34 N H N 35 N H N 36 N N N 37 S C N 38 N C N 39 N O N 40 N C N 41 N C N 42 N C N 43 N O N 44 N N N 45 N O N 46 N H N 47 N H N 48 N H N 49 N H N 50 N H N 51 N H N 52 N H N 53 N H N 54 N H N 55 N H N 56 N N N 57 N C N 58 N C N 59 N O N 60 N O N 61 N H N 62 N H N 63 N H N 64 N H N 65 N H N 66 N O N 67 N H N 68 N H N 69 N N N 70 S C N 71 N C N 72 N O N 73 N C N 74 N C N 75 N C N 76 N C N 77 N O N 78 N H N 79 N H N 80 N H N 81 N H N 82 N H N 83 N H N 84 N H N 85 N H N 86 N H N 87 N H N 88 N H N 89 N H N 90 N H N 91 N N N 92 N H N 93 N H N 94 N N N 95 S C N 96 N C N 97 N O N 98 N C Y 99 N C Y 100 N C Y 101 N C Y 102 N C Y 103 N C Y 104 N C N 105 N O N 106 N H N 107 N H N 108 N H N 109 N H N 110 N H N 111 N H N 112 N H N 113 N H N 114 N H N 115 N H N 116 N H N 117 N O N 118 N C N 119 N O Y 120 N C Y 121 N C Y 122 N C Y 123 N C Y 124 N C Y 125 N C Y 126 N C Y 127 N C Y 128 N C Y 129 N C Y 130 N C Y 131 N C N 132 N H N 133 N H N 134 N H N 135 N H N 136 N H N 137 N H N 138 N H N 139 N H N 140 N H N 141 N H N 1 N sing N 2 N sing N 3 N sing N 4 N sing N 5 N sing N 6 N sing N 7 N doub N 8 N sing N 9 N sing N 10 N sing N 11 N sing N 12 N sing N 13 N sing N 14 N sing N 15 N sing N 16 N sing N 17 N sing N 18 N sing N 19 N sing N 20 N sing N 21 N sing N 22 N doub N 23 N sing N 24 N sing N 25 N sing N 26 N sing N 27 N sing N 28 N trip N 29 N sing N 30 N sing N 31 N sing N 32 N sing N 33 N sing N 34 N sing N 35 N sing N 36 N sing N 37 N sing N 38 N sing N 39 N doub N 40 N sing N 41 N sing N 42 N sing N 43 N sing N 44 N sing N 45 N sing N 46 N sing N 47 N doub N 48 N sing N 49 N sing N 50 N sing N 51 N sing N 52 N sing N 53 N sing N 54 N sing N 55 N sing N 56 N sing N 57 N sing N 58 N doub N 59 N sing N 60 N sing N 61 N sing N 62 N sing N 63 N sing N 64 N sing N 65 N sing N 66 N sing N 67 N sing N 68 N sing N 69 N doub N 70 N sing N 71 N sing N 72 N sing N 73 N sing N 74 N sing N 75 N sing N 76 N sing N 77 N sing N 78 N sing N 79 N sing N 80 N sing N 81 N sing N 82 N sing N 83 N sing N 84 N sing N 85 N sing N 86 N sing N 87 N sing N 88 N sing N 89 N sing N 90 N sing N 91 N sing N 92 N doub N 93 N sing N 94 N sing N 95 N sing N 96 N sing Y 97 N doub Y 98 N sing Y 99 N sing N 100 N sing Y 101 N doub N 102 N sing Y 103 N doub N 104 N sing Y 105 N sing N 106 N sing N 107 N sing N 108 N sing N 109 N sing N 110 N sing N 111 N doub N 112 N sing Y 113 N doub Y 114 N sing Y 115 N sing N 116 N sing Y 117 N doub N 118 N sing Y 119 N doub N 120 N sing Y 121 N sing N 122 N sing N 123 N sing Y 124 N doub Y 125 N sing Y 126 N sing N 127 N sing Y 128 N doub N 129 N sing Y 130 N doub N 131 N sing Y 132 N sing N 133 N sing N 134 N sing US J.Am.Chem.Soc. JACSAT 1520-5126 Porous Framework Assembly Creates Functional Tertiary Folds in Small Peptides 2026 0000-0002-5836-6772 0009-0003-8171-6069 0000-0003-4137-6453 10.2210/pdb12th/pdb pdb_000012th 100 1 N PIXEL 2025-02-22 DECTRIS EIGER X 16M SINGLE WAVELENGTH M x-ray 1 0.6888 1.0 BioMAX MAX IV 0.6888 SYNCHROTRON MAX IV BEAMLINE BioMAX 1782.113 HelloB-GGFFAA 1 syn polymer 41.052 ACETONITRILE 1 syn non-polymer 18.015 water 8 nat water no yes (Z7Z)A(AIB)L(AIB)A(AIB)L(AIB)Q(AIB)LGGFFAA(NH2) XAALAAALAQALGGFFAAX A polypeptide(L) n n n n n n n n n n n n n n n n n n n 1 1.66 25.78 SLOW COOLING Acetonitrile, water 298 repository Initial release 1 0 2026-10-28 United States Department of Energy (DOE, United States) DE-AC02-06CH11357 United States National Science Foundation (NSF, United States) 2440121 United States Department of Energy (DOE, United States) DOE DE-SC0025651 andyn@uic.edu 0000-0003-4137-6453 Andy Nguyen I principal investigator/group leader N RCSB Y RCSB 2026-04-17 REL REL 1 A O HOH 208 6.68 Z7Z Z7Z SUBJECT OF INVESTIGATION CCN ACETONITRILE HOH water 32630 synthetic construct sample 1 19 Y Y 8VPD PDB experimental model A AIB 3 Named protein modification A AIB 3 ALA AIB 1 1_555 Methylation A AIB 5 Named protein modification A AIB 5 ALA AIB 1 1_555 Methylation A AIB 7 Named protein modification A AIB 7 ALA AIB 1 1_555 Methylation A AIB 9 Named protein modification A AIB 9 ALA AIB 1 1_555 Methylation A AIB 11 Named protein modification A AIB 11 ALA AIB 1 1_555 Methylation A Z7Z 1 Non-standard residue A A Z7Z 1 Z7Z 1 1_555 None A Z7Z 1 Non-standard residue B A Z7Z 1 Z7Z 1 1_555 None A Z7Z 1 Non-standard residue C A Z7Z 1 Z7Z 1 1_555 None A NH2 19 Terminal amidation A NH2 19 A ALA 18 ALA A ALA 18 1_555 NH2 1 1_555 None CCN 9 2 CCN CCN 101 A HOH 2 3 HOH HOH 201 A HOH 3 3 HOH HOH 202 A HOH 4 3 HOH HOH 203 A HOH 8 3 HOH HOH 204 A HOH 1 3 HOH HOH 205 A HOH 5 3 HOH HOH 206 A HOH 7 3 HOH HOH 207 A HOH 6 3 HOH HOH 208 A BIF 1 n 1 Z7Z 1 A ALA 2 n 2 ALA 2 A AIB 3 n 3 AIB 3 A LEU 4 n 4 LEU 4 A AIB 5 n 5 AIB 5 A ALA 6 n 6 ALA 6 A AIB 7 n 7 AIB 7 A LEU 8 n 8 LEU 8 A AIB 9 n 9 AIB 9 A GLN 10 n 10 GLN 10 A AIB 11 n 11 AIB 11 A LEU 12 n 12 LEU 12 A GLY 13 n 13 GLY 13 A GLY 14 n 14 GLY 14 A PHE 15 n 15 PHE 15 A PHE 16 n 16 PHE 16 A ALA 17 n 17 ALA 17 A ALA 18 n 18 ALA 18 A NH2 19 n 19 NH2 19 A author_defined_assembly 1 monomeric none 1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 1_555 x,y,z identity operation 0.0000000000 0.0000000000 0.0000000000 1 A A O O HOH HOH 204 207 2.14 13.15 0.1664 0.1524 0.1539 0.91 17.66 1519 13507 8466 10.11 91.48 0.0509 1 FREE R-VALUE 1.34 MOLECULAR REPLACEMENT 25.1852 0.9000 1.1000 GeoStd + Monomer Library + CDL v1.2 FLAT BULK SOLVENT MODEL 0.91 17.66 8 139 4 0 127 0.0081 179 1.5834 248 0.0704 17 0.0060 29 26.5045 28 0.3047 0.3330 0.94 148 1241 93.28 0.3510 0.2749 0.97 132 1137 84.54 0.2985 0.2420 1.01 134 1199 88.28 0.2674 0.2252 1.06 145 1294 98.16 0.1409 0.1949 1.11 139 1229 90.24 0.2125 0.1650 1.18 142 1254 95.55 0.1875 0.1761 1.27 137 1222 89.06 0.1870 0.1641 1.40 131 1243 93.28 0.1650 0.1567 1.61 125 1205 90.17 0.1500 0.1363 2.02 137 1184 89.20 0.1192 0.1062 17.66 149 1299 95.20 8.71 0.91 17.66 12TH 8466 0.999 1 15.02 6.5 95.03 0.91 0.9426 827 0.915 1 refinement PHENIX 1.20.1_4487 data reduction XDS data scaling XDS phasing PHASER 5 monoclinic C 1 2 1 C 2y x,y,z -x,y,-z x+1/2,y+1/2,z -x+1/2,y+1/2,-z N HelloB-GGFFAA - de novo peptide with tertiary structure 1 N N 2 N N 3 N N A ALA 2 A ALA 2 HELX_P A LEU 12 A LEU 12 1 AA1 11 covale 1.423 both A A Z7Z 1 A C1 Z7Z 1 1_555 A ALA 2 A N ALA 2 1_555 covale 1.426 both B A Z7Z 1 A C1 Z7Z 1 1_555 A ALA 2 A N ALA 2 1_555 covale 1.429 both C A Z7Z 1 A C1 Z7Z 1 1_555 A ALA 2 A N ALA 2 1_555 covale 1.328 both A ALA 2 A C ALA 2 1_555 A AIB 3 A N AIB 3 1_555 covale 1.327 both A A AIB 3 A C AIB 3 1_555 A LEU 4 A N LEU 4 1_555 covale 1.328 both B A AIB 3 A C AIB 3 1_555 A LEU 4 A N LEU 4 1_555 covale 1.335 both A A LEU 4 A C LEU 4 1_555 A AIB 5 A N AIB 5 1_555 covale 1.332 both B A LEU 4 A C LEU 4 1_555 A AIB 5 A N AIB 5 1_555 covale 1.337 both A AIB 5 A C AIB 5 1_555 A ALA 6 A N ALA 6 1_555 covale 1.317 both A ALA 6 A C ALA 6 1_555 A AIB 7 A N AIB 7 1_555 covale 1.318 both A A AIB 7 A C AIB 7 1_555 A LEU 8 A N LEU 8 1_555 covale 1.333 both B A AIB 7 A C AIB 7 1_555 A LEU 8 A N LEU 8 1_555 covale 1.338 both A A LEU 8 A C LEU 8 1_555 A AIB 9 A N AIB 9 1_555 covale 1.331 both B A LEU 8 A C LEU 8 1_555 A AIB 9 A N AIB 9 1_555 covale 1.331 both A AIB 9 A C AIB 9 1_555 A GLN 10 A N GLN 10 1_555 covale 1.328 both A GLN 10 A C GLN 10 1_555 A AIB 11 A N AIB 11 1_555 covale 1.336 both A AIB 11 A C AIB 11 1_555 A LEU 12 A N LEU 12 1_555 covale 1.425 both A ALA 18 A C ALA 18 1_555 A NH2 19 A N NH2 19 1_555 DE NOVO PROTEIN synthetic construct, DE NOVO PROTEIN 12TH PDB 1 1 12TH 1 19 12TH 1 19 12TH A 1 1 19 5 C 1 2 1 C 2y