HEADER PROTEIN BINDING 01-JAN-26 21WR TITLE X-RAY CRYSTAL STRUCTURE OF HONEY TRUFFLE SWEETENER COMPND MOL_ID: 1; COMPND 2 MOLECULE: HONEY TRUFFLE SWEETENER; COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: MATTIROLOMYCES TERFEZIOIDES; SOURCE 3 ORGANISM_TAXID: 74857; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 511693 KEYWDS SWEET PROTEINS, DESERT TRUFFLES, PROTEIN BINDING EXPDTA X-RAY DIFFRACTION AUTHOR Z.K.WANG,S.LIU REVDAT 1 07-OCT-26 21WR 0 JRNL AUTH Z.WANG,W.WANG,F.ZHU,Y.ZHANG,Y.LI,Z.ZHU,Z.LU,A.HUANG,M.YU, JRNL AUTH 2 S.LIU JRNL TITL INTEGRATED COMPUTATION-GUIDED THERMOSTABILIZATION OF THE JRNL TITL 2 FUNGAL SWEET PROTEIN HONEY TRUFFLE SWEETENER JRNL REF CURR RES FOOD SCI 01584 2026 JRNL DOI 10.1016/J.CRFS.2026.101584 REMARK 2 REMARK 2 RESOLUTION. 1.58 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.21.2_5419 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) : 1.58 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 31.22 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.350 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.3 REMARK 3 NUMBER OF REFLECTIONS : 24358 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.198 REMARK 3 R VALUE (WORKING SET) : 0.196 REMARK 3 FREE R VALUE : 0.248 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.890 REMARK 3 FREE R VALUE TEST SET COUNT : 1191 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 31.2200 - 3.2900 0.98 2639 120 0.1562 0.1934 REMARK 3 2 3.2900 - 2.6100 0.99 2567 157 0.1958 0.2230 REMARK 3 3 2.6100 - 2.2800 0.99 2569 138 0.2163 0.3095 REMARK 3 4 2.2800 - 2.0700 1.00 2573 136 0.2085 0.3067 REMARK 3 5 2.0700 - 1.9200 0.99 2563 124 0.2163 0.2876 REMARK 3 6 1.9200 - 1.8100 0.99 2556 127 0.2390 0.3020 REMARK 3 7 1.8100 - 1.7200 0.99 2570 126 0.2652 0.3281 REMARK 3 8 1.7200 - 1.6400 1.00 2574 121 0.2920 0.3462 REMARK 3 9 1.6400 - 1.5800 1.00 2556 142 0.3398 0.3403 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) : 0.216 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 29.672 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 24.69 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 35.78 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 : 0.006 1946 REMARK 3 ANGLE : 0.827 2650 REMARK 3 CHIRALITY : 0.055 290 REMARK 3 PLANARITY : 0.007 338 REMARK 3 DIHEDRAL : 13.052 698 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 21WR COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBC ON 07-JAN-26. REMARK 100 THE DEPOSITION ID IS D_1300066024. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 26-SEP-25 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRF REMARK 200 BEAMLINE : BL02U1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.97989 REMARK 200 MONOCHROMATOR : SI(111) REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS EIGER2 S 9M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XIA2 REMARK 200 DATA SCALING SOFTWARE : AIMLESS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 27715 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.580 REMARK 200 RESOLUTION RANGE LOW (A) : 31.710 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.6 REMARK 200 DATA REDUNDANCY : 6.500 REMARK 200 R MERGE (I) : 0.11300 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 7.8000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.58 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.62 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.4 REMARK 200 DATA REDUNDANCY IN SHELL : 6.00 REMARK 200 R MERGE FOR SHELL (I) : 0.89400 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 1.500 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 (%): 26.47 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.67 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 20% W/V POLYETHYLENE GLYCOL 3350,0.1M REMARK 280 BIS-TRIS PH 6, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 289.15K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,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 19.34000 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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 350 REMARK 350 BIOMOLECULE: 2 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: B 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 465 REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 REMARK 465 M RES C SSSEQI REMARK 465 GLY A -2 REMARK 465 SER A -1 REMARK 465 HIS A 0 REMARK 465 GLY B -2 REMARK 465 SER B -1 REMARK 465 HIS B 0 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: TORSION ANGLES REMARK 500 REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS: REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2) REMARK 500 REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI- REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400 REMARK 500 REMARK 500 M RES CSSEQI PSI PHI REMARK 500 ILE A 56 -32.63 -133.54 REMARK 500 SER B 55 -12.53 70.12 REMARK 500 REMARK 500 REMARK: NULL DBREF 21WR A -2 121 PDB 21WR 21WR -2 121 DBREF 21WR B -2 121 PDB 21WR 21WR -2 121 SEQRES 1 A 124 GLY SER HIS MET PRO ASP LEU SER SER PHE ILE THR ILE SEQRES 2 A 124 LYS ASN ASN SER ASN HIS VAL PHE THR ARG THR ALA ILE SEQRES 3 A 124 TYR SER LYS TYR ALA ALA VAL GLN TRP SER PRO GLU PRO SEQRES 4 A 124 GLN LEU SER ILE SER PRO GLY LYS TRP ASP LEU PHE ILE SEQRES 5 A 124 LEU LYS ASP ILE LEU SER ILE ARG GLY THR SER GLY TYR SEQRES 6 A 124 VAL GLN TYR ARG VAL GLY ASP GLY PRO GLY TRP VAL ARG SEQRES 7 A 124 VAL THR PHE SER SER LEU VAL GLY ALA ASP GLU VAL ALA SEQRES 8 A 124 GLU TRP SER SER GLY ASP LEU PRO ASP GLY PHE VAL LEU SEQRES 9 A 124 GLN LYS PRO VAL ARG THR GLY SER ARG PRO LEU GLN ALA SEQRES 10 A 124 THR PHE GLU ALA THR LYS GLN SEQRES 1 B 124 GLY SER HIS MET PRO ASP LEU SER SER PHE ILE THR ILE SEQRES 2 B 124 LYS ASN ASN SER ASN HIS VAL PHE THR ARG THR ALA ILE SEQRES 3 B 124 TYR SER LYS TYR ALA ALA VAL GLN TRP SER PRO GLU PRO SEQRES 4 B 124 GLN LEU SER ILE SER PRO GLY LYS TRP ASP LEU PHE ILE SEQRES 5 B 124 LEU LYS ASP ILE LEU SER ILE ARG GLY THR SER GLY TYR SEQRES 6 B 124 VAL GLN TYR ARG VAL GLY ASP GLY PRO GLY TRP VAL ARG SEQRES 7 B 124 VAL THR PHE SER SER LEU VAL GLY ALA ASP GLU VAL ALA SEQRES 8 B 124 GLU TRP SER SER GLY ASP LEU PRO ASP GLY PHE VAL LEU SEQRES 9 B 124 GLN LYS PRO VAL ARG THR GLY SER ARG PRO LEU GLN ALA SEQRES 10 B 124 THR PHE GLU ALA THR LYS GLN FORMUL 3 HOH *98(H2 O) SHEET 1 AA1 5 VAL A 30 SER A 33 0 SHEET 2 AA1 5 TRP A 45 ASP A 52 -1 O ILE A 49 N SER A 33 SHEET 3 AA1 5 SER A 6 ASN A 13 -1 N ILE A 10 O ASP A 46 SHEET 4 AA1 5 LEU A 112 LYS A 120 1 O PHE A 116 N THR A 9 SHEET 5 AA1 5 PHE A 99 LEU A 101 -1 N VAL A 100 O THR A 119 SHEET 1 AA2 5 VAL A 30 SER A 33 0 SHEET 2 AA2 5 TRP A 45 ASP A 52 -1 O ILE A 49 N SER A 33 SHEET 3 AA2 5 SER A 6 ASN A 13 -1 N ILE A 10 O ASP A 46 SHEET 4 AA2 5 LEU A 112 LYS A 120 1 O PHE A 116 N THR A 9 SHEET 5 AA2 5 VAL A 105 GLY A 108 -1 N THR A 107 O GLN A 113 SHEET 1 AA3 5 SER A 39 ILE A 40 0 SHEET 2 AA3 5 PHE A 18 SER A 25 -1 N PHE A 18 O ILE A 40 SHEET 3 AA3 5 GLY A 58 VAL A 67 -1 O GLN A 64 N THR A 21 SHEET 4 AA3 5 TRP A 73 LEU A 81 -1 O SER A 80 N THR A 59 SHEET 5 AA3 5 VAL A 87 GLY A 93 -1 O SER A 91 N ARG A 75 SHEET 1 AA4 5 VAL B 30 TRP B 32 0 SHEET 2 AA4 5 LYS B 44 ASP B 52 -1 O LYS B 51 N GLN B 31 SHEET 3 AA4 5 SER B 6 ASN B 13 -1 N ILE B 10 O ASP B 46 SHEET 4 AA4 5 LEU B 112 LYS B 120 1 O PHE B 116 N THR B 9 SHEET 5 AA4 5 PHE B 99 LEU B 101 -1 N VAL B 100 O THR B 119 SHEET 1 AA5 5 VAL B 30 TRP B 32 0 SHEET 2 AA5 5 LYS B 44 ASP B 52 -1 O LYS B 51 N GLN B 31 SHEET 3 AA5 5 SER B 6 ASN B 13 -1 N ILE B 10 O ASP B 46 SHEET 4 AA5 5 LEU B 112 LYS B 120 1 O PHE B 116 N THR B 9 SHEET 5 AA5 5 VAL B 105 GLY B 108 -1 N VAL B 105 O THR B 115 SHEET 1 AA6 5 SER B 39 ILE B 40 0 SHEET 2 AA6 5 PHE B 18 SER B 25 -1 N PHE B 18 O ILE B 40 SHEET 3 AA6 5 SER B 60 VAL B 67 -1 O GLN B 64 N THR B 21 SHEET 4 AA6 5 TRP B 73 SER B 79 -1 O VAL B 74 N TYR B 65 SHEET 5 AA6 5 VAL B 87 GLY B 93 -1 O SER B 91 N ARG B 75 CISPEP 1 SER A 33 PRO A 34 0 -13.05 CISPEP 2 ARG A 110 PRO A 111 0 11.28 CISPEP 3 SER B 33 PRO B 34 0 -2.50 CISPEP 4 ARG B 110 PRO B 111 0 9.73 CRYST1 43.810 38.680 53.110 90.00 95.24 90.00 P 1 21 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 0.022826 0.000000 0.002093 0.00000 SCALE2 0.000000 0.025853 0.000000 0.00000 SCALE3 0.000000 0.000000 0.018908 0.00000 MASTER 226 0 0 0 30 0 0 6 1992 2 0 20 END