HEADER DE NOVO PROTEIN 27-APR-26 13AI TITLE HELLOOP-GGSSTSA- A DE NOVO PEPTIDE WITH TERTIARY STRUCTURE COMPND MOL_ID: 1; COMPND 2 MOLECULE: HELLOOP-GGSSTSA; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 ORGANISM_SCIENTIFIC: SYNTHETIC CONSTRUCT; SOURCE 4 ORGANISM_TAXID: 32630 KEYWDS SYNTHETIC CONSTRUCT, DE NOVO PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR P.GANATRA REVDAT 1 28-OCT-26 13AI 0 JRNL AUTH P.GANATRA,D.F.WANG,S.NICHOLS,V.T.DANG,J.S.BRUNZELLE,P.JANA, JRNL AUTH 2 A.I.NGUYEN JRNL TITL POROUS FRAMEWORK ASSEMBLY CREATES FUNCTIONAL TERTIARY FOLDS JRNL TITL 2 IN SMALL PEPTIDES JRNL REF J.AM.CHEM.SOC. 2026 JRNL REFN ESSN 1520-5126 REMARK 2 REMARK 2 RESOLUTION. 1.25 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.20.1_4487 REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : GEOSTD + MONOMER LIBRARY + CDL V1.2 REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.25 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 18.81 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.440 REMARK 3 COMPLETENESS FOR RANGE (%) : 97.7 REMARK 3 NUMBER OF REFLECTIONS : 3089 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.108 REMARK 3 R VALUE (WORKING SET) : 0.106 REMARK 3 FREE R VALUE : 0.121 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.110 REMARK 3 FREE R VALUE TEST SET COUNT : 557 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 18.8100 - 1.9800 0.98 1236 150 0.0811 0.1031 REMARK 3 2 1.9800 - 1.5800 0.97 1248 135 0.1198 0.1118 REMARK 3 3 1.5700 - 1.3800 0.97 1234 138 0.1310 0.1458 REMARK 3 4 1.3800 - 1.2500 0.99 1237 134 0.1533 0.2075 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.10 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.045 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 13.294 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 7.63 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 10.09 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : NULL REMARK 3 B22 (A**2) : NULL REMARK 3 B33 (A**2) : NULL REMARK 3 B12 (A**2) : NULL REMARK 3 B13 (A**2) : NULL REMARK 3 B23 (A**2) : NULL REMARK 3 REMARK 3 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.007 136 REMARK 3 ANGLE : 1.536 191 REMARK 3 CHIRALITY : 0.052 17 REMARK 3 PLANARITY : 0.006 22 REMARK 3 DIHEDRAL : 21.629 26 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 13AI COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 28-APR-26. REMARK 100 THE DEPOSITION ID IS D_1000307564. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 18-MAR-26 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 21-ID-G REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.978720 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS 6M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : XDS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 3089 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.250 REMARK 200 RESOLUTION RANGE LOW (A) : 18.810 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.8 REMARK 200 DATA REDUNDANCY : 5.800 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 8.2200 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.25 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.30 REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 17.07 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.48 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: ACETONITRILE, WATER, SLOW COOLING, REMARK 280 TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,Y,-Z REMARK 290 3555 X+1/2,Y+1/2,Z REMARK 290 4555 -X+1/2,Y+1/2,-Z REMARK 290 REMARK 290 WHERE NNN -> OPERATOR NUMBER REMARK 290 MMM -> TRANSLATION VECTOR REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY REMARK 290 RELATED MOLECULES. REMARK 290 SMTRY1 1 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 1 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 1 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 2 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 3 1.000000 0.000000 0.000000 19.26600 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 4.40100 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 19.26600 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 4.40100 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON REMARK 300 BURIED SURFACE AREA. REMARK 350 REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 350 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 350 REMARK 350 BIOMOLECULE: 1 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A REMARK 350 BIOMT1 1 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 REMARK 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 HOH A 204 LIES ON A SPECIAL POSITION. REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A 207 DISTANCE = 6.06 ANGSTROMS REMARK 525 HOH A 208 DISTANCE = 6.19 ANGSTROMS REMARK 525 HOH A 209 DISTANCE = 8.85 ANGSTROMS REMARK 525 HOH A 210 DISTANCE = 14.80 ANGSTROMS DBREF 13AI A 1 20 PDB 13AI 13AI 1 20 SEQRES 1 A 20 Z7Z ALA AIB LEU AIB ALA AIB LEU AIB GLN AIB LEU GLY SEQRES 2 A 20 GLY SER SER THR SER ALA NH2 HET Z7Z A 1 23 HET AIB A 3 13 HET AIB A 5 13 HET AIB A 7 13 HET AIB A 9 13 HET AIB A 11 13 HET NH2 A 20 3 HET CCN A 101 6 HETNAM Z7Z BIPHENYL-4-CARBOXYLIC ACID HETNAM AIB ALPHA-AMINOISOBUTYRIC ACID HETNAM NH2 AMINO GROUP HETNAM CCN ACETONITRILE FORMUL 1 Z7Z C13 H10 O2 FORMUL 1 AIB 5(C4 H9 N O2) FORMUL 1 NH2 H2 N FORMUL 2 CCN C2 H3 N FORMUL 3 HOH *10(H2 O) HELIX 1 AA1 ALA A 2 LEU A 12 1 11 LINK C1 Z7Z A 1 N ALA A 2 1555 1555 1.42 LINK C ALA A 2 N AIB A 3 1555 1555 1.33 LINK C AIB A 3 N ALEU A 4 1555 1555 1.33 LINK C AIB A 3 N BLEU A 4 1555 1555 1.33 LINK C ALEU A 4 N AIB A 5 1555 1555 1.33 LINK C BLEU A 4 N AIB A 5 1555 1555 1.33 LINK C AIB A 5 N ALA A 6 1555 1555 1.33 LINK C ALA A 6 N AIB A 7 1555 1555 1.33 LINK C AIB A 7 N LEU A 8 1555 1555 1.33 LINK C LEU A 8 N AIB A 9 1555 1555 1.33 LINK C AIB A 9 N GLN A 10 1555 1555 1.32 LINK C GLN A 10 N AIB A 11 1555 1555 1.33 LINK C AIB A 11 N LEU A 12 1555 1555 1.34 LINK C ALA A 19 N NH2 A 20 1555 1555 1.43 CRYST1 38.532 8.802 33.480 90.00 111.64 90.00 C 1 2 1 4 ORIGX1 1.000000 0.000000 0.000000 0.00000 ORIGX2 0.000000 1.000000 0.000000 0.00000 ORIGX3 0.000000 0.000000 1.000000 0.00000 SCALE1 0.025952 0.000000 0.010296 0.00000 SCALE2 0.000000 0.113611 0.000000 0.00000 SCALE3 0.000000 0.000000 0.032133 0.00000 CONECT 1 2 3 24 CONECT 2 1 CONECT 3 1 4 6 CONECT 4 3 5 15 CONECT 5 4 8 16 CONECT 6 3 7 17 CONECT 7 6 8 18 CONECT 8 5 7 9 CONECT 9 8 10 11 CONECT 10 9 12 19 CONECT 11 9 13 20 CONECT 12 10 14 21 CONECT 13 11 14 22 CONECT 14 12 13 23 CONECT 15 4 CONECT 16 5 CONECT 17 6 CONECT 18 7 CONECT 19 10 CONECT 20 11 CONECT 21 12 CONECT 22 13 CONECT 23 14 CONECT 24 1 CONECT 26 34 CONECT 34 26 35 40 CONECT 35 34 36 38 39 CONECT 36 35 37 47 48 CONECT 37 36 CONECT 38 35 41 42 43 CONECT 39 35 44 45 46 CONECT 40 34 CONECT 41 38 CONECT 42 38 CONECT 43 38 CONECT 44 39 CONECT 45 39 CONECT 46 39 CONECT 47 36 CONECT 48 36 CONECT 51 85 CONECT 52 85 CONECT 85 51 52 86 91 CONECT 86 85 87 89 90 CONECT 87 86 88 98 CONECT 88 87 CONECT 89 86 92 93 94 CONECT 90 86 95 96 97 CONECT 91 85 CONECT 92 89 CONECT 93 89 CONECT 94 89 CONECT 95 90 CONECT 96 90 CONECT 97 90 CONECT 98 87 CONECT 100 108 CONECT 108 100 109 114 CONECT 109 108 110 112 113 CONECT 110 109 111 121 CONECT 111 110 CONECT 112 109 115 116 117 CONECT 113 109 118 119 120 CONECT 114 108 CONECT 115 112 CONECT 116 112 CONECT 117 112 CONECT 118 113 CONECT 119 113 CONECT 120 113 CONECT 121 110 CONECT 123 140 CONECT 140 123 141 146 CONECT 141 140 142 144 145 CONECT 142 141 143 153 CONECT 143 142 CONECT 144 141 147 148 149 CONECT 145 141 150 151 152 CONECT 146 140 CONECT 147 144 CONECT 148 144 CONECT 149 144 CONECT 150 145 CONECT 151 145 CONECT 152 145 CONECT 153 142 CONECT 155 170 CONECT 170 155 171 176 CONECT 171 170 172 174 175 CONECT 172 171 173 183 CONECT 173 172 CONECT 174 171 177 178 179 CONECT 175 171 180 181 182 CONECT 176 170 CONECT 177 174 CONECT 178 174 CONECT 179 174 CONECT 180 175 CONECT 181 175 CONECT 182 175 CONECT 183 172 CONECT 265 273 CONECT 273 265 274 275 CONECT 274 273 CONECT 275 273 CONECT 277 278 CONECT 278 277 279 CONECT 279 278 280 281 282 CONECT 280 279 CONECT 281 279 CONECT 282 279 MASTER 214 0 8 1 0 0 0 6 139 1 111 2 END