HEADER TRANSFERASE 25-MAR-99 1CGK TITLE CHALCONE SYNTHASE FROM ALFALFA COMPLEXED WITH NARINGENIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEIN (CHALCONE SYNTHASE); COMPND 3 CHAIN: A; COMPND 4 SYNONYM: CHS; COMPND 5 EC: 2.3.1.74; COMPND 6 ENGINEERED: YES; COMPND 7 OTHER_DETAILS: COMPLEXED WITH NARINGENIN SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: MEDICAGO SATIVA; SOURCE 3 ORGANISM_TAXID: 3879; SOURCE 4 TISSUE: 21 DAY OLD ROOT NODULE; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 511693; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PET28B KEYWDS POLYKETIDE SYNTHASE, CHALCONE BIOSYNTHESIS, TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR J.-L.FERRER,J.JEZ,M.E.BOWMAN,R.DIXON,J.P.NOEL REVDAT 7 09-AUG-23 1CGK 1 REMARK REVDAT 6 04-APR-18 1CGK 1 REMARK REVDAT 5 13-JUL-11 1CGK 1 VERSN REVDAT 4 24-FEB-09 1CGK 1 VERSN REVDAT 3 01-APR-03 1CGK 1 JRNL REVDAT 2 05-OCT-99 1CGK 1 JRNL REVDAT 1 03-SEP-99 1CGK 0 JRNL AUTH J.L.FERRER,J.M.JEZ,M.E.BOWMAN,R.A.DIXON,J.P.NOEL JRNL TITL STRUCTURE OF CHALCONE SYNTHASE AND THE MOLECULAR BASIS OF JRNL TITL 2 PLANT POLYKETIDE BIOSYNTHESIS. JRNL REF NAT.STRUCT.BIOL. V. 6 775 1999 JRNL REFN ISSN 1072-8368 JRNL PMID 10426957 JRNL DOI 10.1038/11553 REMARK 2 REMARK 2 RESOLUTION. 1.84 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.84 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 84.50 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 85.5 REMARK 3 NUMBER OF REFLECTIONS : 26948 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING + TEST SET) : NULL REMARK 3 R VALUE (WORKING SET) : 0.161 REMARK 3 FREE R VALUE : 0.225 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 1347 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2980 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 20 REMARK 3 SOLVENT ATOMS : 360 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL 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 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): NULL REMARK 3 ESU BASED ON FREE R VALUE (A): NULL REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): NULL REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : 0.013 ; NULL REMARK 3 ANGLE DISTANCE (A) : 2.419 ; NULL REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : NULL ; NULL REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : NULL ; NULL REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : NULL ; NULL REMARK 3 MULTIPLE TORSION (A) : NULL ; NULL REMARK 3 H-BOND (X...Y) (A) : NULL ; NULL REMARK 3 H-BOND (X-H...Y) (A) : NULL ; NULL REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : NULL ; NULL REMARK 3 PLANAR (DEGREES) : NULL ; NULL REMARK 3 STAGGERED (DEGREES) : NULL ; NULL REMARK 3 TRANSVERSE (DEGREES) : NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1CGK COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 24-MAR-99. REMARK 100 THE DEPOSITION ID IS D_1000000721. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : JUN-98 REMARK 200 TEMPERATURE (KELVIN) : 105.0 REMARK 200 PH : 6.50 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : MACSCIENCE REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NI FILTER REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MAC SCIENCE DIP-2000 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 26948 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.840 REMARK 200 RESOLUTION RANGE LOW (A) : 51.680 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 86.6 REMARK 200 DATA REDUNDANCY : 2.800 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.04100 REMARK 200 FOR THE DATA SET : 13.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.84 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.89 REMARK 200 COMPLETENESS FOR SHELL (%) : 8.3 REMARK 200 DATA REDUNDANCY IN SHELL : 0.10 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.01100 REMARK 200 FOR SHELL : 7.500 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: OTHER REMARK 200 SOFTWARE USED: CCP4 (ARPP) REMARK 200 STARTING MODEL: PDB ENTRY 1BI5 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 42.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.07 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: THE DROPLE CONSISTED ON 25 MGR/ML REMARK 280 (FINAL CONCENTRATION) PROTEIN MIXED WITH THE RESERVOIR WHICH REMARK 280 CONTAINED 2.4 M AMMONIUM SULFATE, 100 MM PIPES BUFFER (PH 6.5) , REMARK 280 IN THE PRESENCE (UP TO 5 MM) OR ABSENCE OF DTT REDUCING AGENT. REMARK 280 CRYSTALS WERE STABILIZED IN 40% (V/V) PEG400, 100 MM PIPES 16 MM REMARK 280 NARINGENIN PRIOR TO FREEZING AT 105 K, PH 6.50 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 32 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+2/3 REMARK 290 3555 -X+Y,-X,Z+1/3 REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z+1/3 REMARK 290 6555 -X,-X+Y,-Z+2/3 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 43.45733 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 21.72867 REMARK 290 SMTRY1 4 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 5 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 21.72867 REMARK 290 SMTRY1 6 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 43.45733 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 7330 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 26390 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -12.0 KCAL/MOL 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 BIOMT1 2 -0.500000 0.866025 0.000000 0.00000 REMARK 350 BIOMT2 2 0.866025 0.500000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 130.37200 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 415 LIES ON A SPECIAL POSITION. 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 MET A 1 REMARK 465 VAL A 2 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 CG LYS A 9 O HOH A 693 4557 1.82 REMARK 500 NZ LYS A 146 OE2 GLU A 251 4557 1.86 REMARK 500 O HOH A 668 O HOH A 715 4557 1.99 REMARK 500 O HOH A 596 O HOH A 626 4557 2.02 REMARK 500 NZ LYS A 155 O HOH A 556 4557 2.13 REMARK 500 O HOH A 409 O HOH A 441 4557 2.15 REMARK 500 O HOH A 462 O HOH A 474 5666 2.15 REMARK 500 O HOH A 459 O HOH A 660 4556 2.16 REMARK 500 N MET A 158 O HOH A 435 4557 2.19 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 ARG A 12 NE - CZ - NH1 ANGL. DEV. = -4.2 DEGREES REMARK 500 ASP A 38 CB - CG - OD1 ANGL. DEV. = 6.7 DEGREES REMARK 500 ARG A 67 CD - NE - CZ ANGL. DEV. = 23.9 DEGREES REMARK 500 ARG A 67 NE - CZ - NH1 ANGL. DEV. = 6.5 DEGREES REMARK 500 ASP A 136 CB - CG - OD1 ANGL. DEV. = 6.1 DEGREES REMARK 500 PRO A 138 N - CA - CB ANGL. DEV. = 8.2 DEGREES REMARK 500 ARG A 156 NE - CZ - NH2 ANGL. DEV. = 3.9 DEGREES REMARK 500 ARG A 172 NE - CZ - NH1 ANGL. DEV. = 3.4 DEGREES REMARK 500 VAL A 342 CB - CA - C ANGL. DEV. = 12.2 DEGREES REMARK 500 VAL A 342 N - CA - CB ANGL. DEV. = -17.1 DEGREES REMARK 500 VAL A 342 CA - CB - CG1 ANGL. DEV. = 10.1 DEGREES REMARK 500 GLY A 376 CA - C - N ANGL. DEV. = 19.5 DEGREES REMARK 500 GLY A 376 O - C - N ANGL. DEV. = -14.8 DEGREES REMARK 500 ILE A 389 CA - CB - CG2 ANGL. DEV. = 12.3 DEGREES REMARK 500 REMARK 500 REMARK: NULL 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 GLU A 14 -62.72 -101.72 REMARK 500 SER A 90 -0.06 -159.17 REMARK 500 GLU A 231 15.66 55.31 REMARK 500 TYR A 334 -14.78 -140.67 REMARK 500 MET A 337 33.54 -96.36 REMARK 500 SER A 338 -132.15 47.04 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY REMARK 500 REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 500 I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI ANGLE REMARK 500 GLU A 32 -18.07 REMARK 500 LYS A 42 -14.77 REMARK 500 GLU A 333 12.42 REMARK 500 THR A 354 -18.48 REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: CYS REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: CATALYTIC SITE REMARK 800 REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NAR A 390 DBREF 1CGK A 1 389 UNP P30074 CHS2_MEDSA 1 389 SEQRES 1 A 389 MET VAL SER VAL SER GLU ILE ARG LYS ALA GLN ARG ALA SEQRES 2 A 389 GLU GLY PRO ALA THR ILE LEU ALA ILE GLY THR ALA ASN SEQRES 3 A 389 PRO ALA ASN CYS VAL GLU GLN SER THR TYR PRO ASP PHE SEQRES 4 A 389 TYR PHE LYS ILE THR ASN SER GLU HIS LYS THR GLU LEU SEQRES 5 A 389 LYS GLU LYS PHE GLN ARG MET CYS ASP LYS SER MET ILE SEQRES 6 A 389 LYS ARG ARG TYR MET TYR LEU THR GLU GLU ILE LEU LYS SEQRES 7 A 389 GLU ASN PRO ASN VAL CYS GLU TYR MET ALA PRO SER LEU SEQRES 8 A 389 ASP ALA ARG GLN ASP MET VAL VAL VAL GLU VAL PRO ARG SEQRES 9 A 389 LEU GLY LYS GLU ALA ALA VAL LYS ALA ILE LYS GLU TRP SEQRES 10 A 389 GLY GLN PRO LYS SER LYS ILE THR HIS LEU ILE VAL CYS SEQRES 11 A 389 THR THR SER GLY VAL ASP MET PRO GLY ALA ASP TYR GLN SEQRES 12 A 389 LEU THR LYS LEU LEU GLY LEU ARG PRO TYR VAL LYS ARG SEQRES 13 A 389 TYR MET MET TYR GLN GLN GLY CYS PHE ALA GLY GLY THR SEQRES 14 A 389 VAL LEU ARG LEU ALA LYS ASP LEU ALA GLU ASN ASN LYS SEQRES 15 A 389 GLY ALA ARG VAL LEU VAL VAL CYS SER GLU VAL THR ALA SEQRES 16 A 389 VAL THR PHE ARG GLY PRO SER ASP THR HIS LEU ASP SER SEQRES 17 A 389 LEU VAL GLY GLN ALA LEU PHE GLY ASP GLY ALA ALA ALA SEQRES 18 A 389 LEU ILE VAL GLY SER ASP PRO VAL PRO GLU ILE GLU LYS SEQRES 19 A 389 PRO ILE PHE GLU MET VAL TRP THR ALA GLN THR ILE ALA SEQRES 20 A 389 PRO ASP SER GLU GLY ALA ILE ASP GLY HIS LEU ARG GLU SEQRES 21 A 389 ALA GLY LEU THR PHE HIS LEU LEU LYS ASP VAL PRO GLY SEQRES 22 A 389 ILE VAL SER LYS ASN ILE THR LYS ALA LEU VAL GLU ALA SEQRES 23 A 389 PHE GLU PRO LEU GLY ILE SER ASP TYR ASN SER ILE PHE SEQRES 24 A 389 TRP ILE ALA HIS PRO GLY GLY PRO ALA ILE LEU ASP GLN SEQRES 25 A 389 VAL GLU GLN LYS LEU ALA LEU LYS PRO GLU LYS MET ASN SEQRES 26 A 389 ALA THR ARG GLU VAL LEU SER GLU TYR GLY ASN MET SER SEQRES 27 A 389 SER ALA CYS VAL LEU PHE ILE LEU ASP GLU MET ARG LYS SEQRES 28 A 389 LYS SER THR GLN ASN GLY LEU LYS THR THR GLY GLU GLY SEQRES 29 A 389 LEU GLU TRP GLY VAL LEU PHE GLY PHE GLY PRO GLY LEU SEQRES 30 A 389 THR ILE GLU THR VAL VAL LEU ARG SER VAL ALA ILE HET NAR A 390 20 HETNAM NAR NARINGENIN FORMUL 2 NAR C15 H12 O5 FORMUL 3 HOH *360(H2 O) HELIX 1 1 VAL A 4 GLN A 11 1 8 HELIX 2 2 TYR A 36 ILE A 43 1 8 HELIX 3 3 THR A 50 LYS A 62 1 13 HELIX 4 4 GLU A 74 GLU A 79 1 6 HELIX 5 5 PRO A 81 CYS A 84 1 4 HELIX 6 6 LEU A 91 TRP A 117 1 27 HELIX 7 7 LYS A 121 LYS A 123 5 3 HELIX 8 8 ALA A 140 LEU A 148 1 9 HELIX 9 9 CYS A 164 GLU A 179 5 16 HELIX 10 10 THR A 194 VAL A 196 5 3 HELIX 11 11 LEU A 206 LEU A 214 1 9 HELIX 12 12 VAL A 271 LEU A 290 1 20 HELIX 13 13 PRO A 307 LEU A 317 1 11 HELIX 14 14 PRO A 321 TYR A 334 5 14 HELIX 15 15 SER A 338 GLN A 355 5 18 SHEET 1 A 2 CYS A 30 GLU A 32 0 SHEET 2 A 2 ARG A 67 TYR A 69 -1 N ARG A 68 O VAL A 31 SHEET 1 B 5 LYS A 155 TYR A 160 0 SHEET 2 B 5 HIS A 126 THR A 131 1 N LEU A 127 O LYS A 155 SHEET 3 B 5 VAL A 186 GLU A 192 1 N LEU A 187 O HIS A 126 SHEET 4 B 5 GLY A 218 GLY A 225 -1 N VAL A 224 O VAL A 186 SHEET 5 B 5 THR A 18 ALA A 25 -1 N ALA A 25 O ALA A 219 SHEET 1 C 4 PHE A 299 ALA A 302 0 SHEET 2 C 4 TRP A 367 GLY A 374 1 N VAL A 369 O PHE A 299 SHEET 3 C 4 THR A 378 SER A 386 -1 N LEU A 384 O GLY A 368 SHEET 4 C 4 PHE A 237 ILE A 246 -1 N THR A 245 O ILE A 379 CISPEP 1 MET A 137 PRO A 138 0 -13.49 CISPEP 2 GLY A 376 LEU A 377 0 5.32 SITE 1 CYS 1 CYS A 164 SITE 1 AC1 18 SER A 133 MET A 137 CYS A 164 GLU A 192 SITE 2 AC1 18 VAL A 193 THR A 194 THR A 197 PHE A 215 SITE 3 AC1 18 GLY A 216 ASP A 217 ILE A 254 ASP A 255 SITE 4 AC1 18 GLY A 256 LEU A 263 THR A 264 PHE A 265 SITE 5 AC1 18 SER A 338 PRO A 375 CRYST1 97.917 97.917 65.186 90.00 90.00 120.00 P 32 2 1 6 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 0.010213 0.005896 0.000000 0.00000 SCALE2 0.000000 0.011793 0.000000 0.00000 SCALE3 0.000000 0.000000 0.015341 0.00000